electrical. part 1: introduction. part o-1:...

ELECTRICAL.

Applicability of This Module

ELCA/Part 1O-1 - 1CALO 2/18 STP

.PART 1: INTRODUCTION.

.Part O-1: Low Voltage Electrical Safety in California

Use the following General Applicability Checklist to determine whether a rulebook and its sectionsapply to your operation.If you answer YES to the rulebook question, the rulebook applies to you unless you answer YES for arulebook exemption.

Once you determine that the rulebook does apply to your operation, you must answer the sectionquestions. If a section question does not exist, then that section applies if the rulebook applies. If youanswer YES to a section question, that section applies to you unless you answer YES for an exemptionfrom that section. If you answer YES to a rulebook or section exemption, then the rulebook or sectiondoes not apply.

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GENERAL APPLICABILITY CHECKLIST.

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Applies.

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Exempt.

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Rulebook: Low Voltage Electrical Safety.

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RULEBOOK: Do your business practices include work performed directly on or inproximity to electrical installations, equipment, or operating systems of 600 volts, nominal,or less?.

Y

q

N

q

RULEBOOK Exemption: Do your operations include any of the following exceptions: installations of conductors and equipment in ships, watercraft, railway rolling stock,

aircraft, or in vehicles operating at less than 50 volts (or to their ignition system); or installations of conductors, equipment, and associated enclosures subject to the

jurisdiction of the California Public Utilities Commission that are owned, operated, andmaintained by an electric, communication, or electric railway utility?

Note 1: Although utilities are generally exempt from this rulebook, it does apply toconduit, vaults, and other like enclosures containing the conductors and equipment ofsuch a utility when located indoors on premises not used exclusively for utilitypurposes (but does not apply to the utilitys conductors and the equipment therein).Note 2: Although electric utilities are generally exempt from the requirements of thisrulebook, Section 3 (Work Procedures) applies to all work performed by electricutilities.

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Y

q

N

q

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Section 1: Do you employ or oversee any personnel who work on electrical equipment orsystems?.

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Y

q

N

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Section 3: Do your electrical installations or electrical equipment include groundedconductors?.

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Y

q

N

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Section 4: Do your electrical installations or electrical equipment include branch circuits?.

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Y

q

N

q.............................................................................................................................................................................................................................................................. ........................... ...........................

Section 5: Do your electrical installations or electrical equipment include outdoor wiring?.

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Y

q

N

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Section 10: Do your electrical installations or electrical equipment include the use oftemporary wiring?.

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Y

q

N

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ELCA/Part 1O-1 - 2

Electrical Introduction

CALO 2/18 STP

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Applies.

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Exempt.

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Section 11: Do your electrical installations or electrical equipment include the use of cabletray systems?.

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Y

q

N

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Section 12: Do your electrical installations or electrical equipment include the use of openwiring?.

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Y

q

N

q.............................................................................................................................................................................................................................................................. ........................... ...........................

Section 13: Do your electrical installations or electrical equipment include boxes, cabinets,or fittings?.

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Y

q

N

q.............................................................................................................................................................................................................................................................. ........................... ...........................

Section 14: Do your electrical installations or electrical equipment include the use ofswitches?.

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Y

q

N

q.............................................................................................................................................................................................................................................................. ........................... ...........................

Section 15: Do you have electrical equipment in damp or wet locations?.

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Y

q

N

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Section 16: Do you have integrated electrical systems, other than unit equipment, in whichorderly shutdown is necessary to ensure safe operation?.

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Y

q

N

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Section 17: Do your electrical installations or electrical equipment include the use of flexiblecords and cables?.

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Y

q

N

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Section 18: Do your electrical installations or electrical equipment include the use of fixturewires?.

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Y

q

N

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Section 19: Do your electrical installations or electrical equipment include lighting fixtures,lampholders, lamps, or receptacles?.

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Y

q

N

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Section 20: Do your electrical installations or electrical equipment include the use ofappliances?.

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Y

q

N

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Section 21: Do your electrical installations or electrical equipment include the use of fixedelectric space heating equipment?.

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Y

q

N

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Section 22: Do your electrical installations or electrical equipment include the use of fixedelectric space heating equipment for pipelines and vessels?.

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Y

q

N

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Section 23: Do your electrical installations or electrical equipment include the use of motors,motor circuits, or controllers?.

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Y

q

N

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Section 24: Do your electrical installations or electrical equipment include transformers ortransformer vaults (including secondary ties)?.

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Y

q

N

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Section 25: Do your electrical installations or electrical equipment include the use ofcapacitors?.

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Y

q

N

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Section 26: Do your electrical installations or electrical equipment include the use of storagebatteries?.

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Y

q

N

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Section 27: Do you have any electrical equipment or wiring in hazardous (classified)locations?.

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Y

q

N

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Section 28: Do your electrical installations or electrical equipment include the use of electricsigns and outline lighting?.

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Y

q

N

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Section 29: Do you use cranes or hoists?.

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Y

q

N

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Applies.

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Exempt.

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Section 30: Do you have elevators, dumbwaiters, escalators, moving walks, wheelchair lifts,or stairway chair lifts?.

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Y

q

N

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Section 31: Do you use electric welders?.

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Y

q

N

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Section 32: Do you use information technology or data processing systems?.

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Y

q

N

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Section 33: Do you use x-ray equipment?.

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Y

q

N

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Section 34: Do you use induction or dielectric heating equipment or accessories in industrialor scientific applications?.

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Y

q

N

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Section 35: Are your electrical installations or electrical equipment associated withswimming pools, fountains, or similar installations?.

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Y

q

N

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Section 36: Do you maintain emergency electrical systems to supply power for illuminationand special loads in the event of failure of the normal supply?.

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Y

q

N

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Section 37: Do your operations include electroplating or electrostripping processes?.

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Y

q

N

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Section 38: Do your operations include electrolytic cells, electrolytic cell lines, or processpower supply for the production of aluminum, cadmium, chlorine, copper, fluorine, hydrogenperoxide, magnesium, sodium, sodium chlorate, or zinc?.

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Y

q

N

q

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Section 39: Do your electrical installations or electrical equipment include Class 1, Class 2,or Class 3 remote control, signaling, or power-limited circuits?.

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Y

q

N

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Section 40: Do you have a fire alarm system?.

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Y

q

N

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Section 41: Do you have communications systems, including central-station-connected ornon-central-station-connected telephone circuits, radio or television receiving andtransmitting equipment, telegraph, district messenger, or outside wiring for fire or burglaralarm, or similar central station systems?.

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Y

q

N

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Section 42: Do you have solar photovoltaic systems?.

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Y

q

N

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Section 43: Do you use fixed outdoor electric de-icing or snow-melting equipment?.

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Y

q

N

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Section 44: Do you operate oil and gas wells?.

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Y

q

N

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Section 45: Are your electrical installations or electrical equipment located in buildings, partof a building, or structure designed for use by 100 or more persons for assembly purposes,such as dining, meetings, entertainment, lectures, bowling, worship, dancing, or exhibition?.

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Y

q

N

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Section 46: Are your electrical installations or electrical equipment located in buildings, partof a building, or structure designed or intended to be used as theaters or similar locations?.

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Y

q

N

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Section 47: Are your electrical installations or electrical equipment located in motion picturestudios or similar locations?.

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Y

q

N

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Section 48: Are your electrical installations or electrical equipment associated with motionpicture projectors?.

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Y

q

N

q

Regulatory Summary

ELCA/Part 1O-1 - 4


CALO 2/18 STP

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Applies.

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Exempt.

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Section 49: Do you use sound recording or similar equipment?.

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Y

q

N

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Section 50: Do you use electrically driven or controlled irrigation machines?.

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Y

q

N

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Section 51: Do you operate any carnivals, circuses, exhibitions, fairs, traveling attractions, orsimilar events?.

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Y

q

N

q.

The California Division of the Occupational Safety and Health Administration, commonly referred toas Cal/OSHA, is authorized to implement and enforce the states occupational safety and healthstandards. The regulations covered in this module are derived from Cal/OSHAs Low VoltageElectrical Safety Orders at 2299-2599, which appear in Title 8 of the California Code Regulations,Division 1 (Department of Industrial Relations), Chapter 4 (Division of Industrial Safety), Subchapter5, Group 1.

Some federal and local agencies may impose additional requirements to those listed in this module.Since employers must meet all applicable requirements, it is important to review regulations at thefederal and local level as well.

Cal/OSHA also issues interpretations, inspection guidelines, directives, and other guidance, which theagency then uses in its inspection and enforcement activities. Cites for these items first include thesection addressed, then identify the type of guidance, then provide the date (Cal/OSHA typically poststhese on its Internet site at www.dir.ca.gov/DOSH).

You can access these regulations at local law libraries, through services provided by regulatoryinformation vendors, or from OSHA or the other agencies directly. OSHAs Internet site iswww.osha.gov.

Cal/OSHA frequently adopts, by reference, standards and guidelines originally developed by othergovernmental, non-profit, or trade organizations. These include the American National StandardsInstitute (ANSI), the National Fire Protection Association (NFPA), and others. Typically, whenCal/OSHA adopts one of these third party standards, it adopts a specific edition. However, eventhough the sponsoring organizations continually amend their standards and guidelines, Cal/OSHA maynot reference the latest version.

Although Cal/OSHA generally provides that compliance with a later edition of a standard meets yourCal/OSHA responsibilities, you should check with the agency before undertaking major activities. Werecommend that you track down the version actually referenced by Cal/OSHA in its regulation, bualso obtain the latest version of the standard from the standards organization. If a specific edition iscited, it is difficult for Cal/OSHA to enforce the terms of a later editionremember, however, that theagencys General Duty Clause requires employers to provide their employees with safe and healthfulworkplaces so Cal/OSHA may be able to claim you are derelict in your duty if you fail to use thelatest guidance.

The best way to resolve this conflict is to contact Cal/OSHA to obtain clear and specific guidance.

Key Compliance Definitions



There following definitions were derived from 8 CCR 2300 unless otherwise referenced.

Accessible Has the following meanings when used in the manner described:

Equipment Application (Other than Wiring Methods) Admitting close approach because not guardedby locked doors, elevation, or other effective means. Readily accessible Capable of being reached quickly for operation, renewal, or inspections,

without requiring those to whom ready access is requisite to climb over or remove obstacles or toresort to portable ladders, chairs, etc.

Safely accessible Not exposing persons installing, operating, maintaining, or inspecting electricalapparatus to serious risks of tripping or falling or of coming in contact with energized electricalparts, moving machinery, surfaces or objects operating at high temperatures or other hazardousequipment.

Wiring Method Application Capable of being removed or exposed without damaging the buildingstructure or finish, or not permanently closed in by the structure or finish of the building.

Adequate Ventilation (as applied to enclosed areas) A mechanical ventilation system suppliedfrom a nonhazardous source that provides for a minimum of 12 air changes per hour.

Ampacity Current-carrying capacity of electric conductors expressed in amperes.

Appliance Utilization equipment, generally other than industrial, normally built in standardized sizesor types that is installed or connected as a unit to perform one or more functions such as clotheswashing, air conditioning, food mixing, deep frying, etc.

Appliance, Fixed An appliance that is fastened or otherwise secured at a specific location.

Appliance, Portable An appliance that is actually moved or can easily be moved from one place toanother in normal use.

Attachment Plug (Plug Cap or Cap) A device which, by insertion in a receptacle, establishesconnection between the conductors of the attached flexible cord and the conductors connectedpermanently to the receptacle.

Authorized Person A qualified person delegated to perform specific duties under the conditionsexisting.

Bond An electrical connection from one metallic element to another for the purpose of minimizingpotential differences and providing suitable conductivity for fault current or for mitigation of leakagecurrent and electrolytic action.

Bonding The permanent joining of metallic parts to form an electrically conductive path which willassure electrical continuity and the capacity to conduct safely any current likely to be imposed.

Bonding Jumper A reliable conductor to assure the required electrical conductivity between metalparts required to be electrically connected.

Bonding Jumper, Circuit The connection between portions of a conductor in a circuit to maintainrequired ampacity of the circuit.

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CALO 2/18 STP

Bonding Jumper, Equipment The connection between two or more portions of the equipmentgrounding conductor.

Bonding Jumper, Main The connection between the grounded circuit conductor and the equipmentgrounding conductor at the service.

Branch Circuit The circuit conductors between the final overcurrent device protecting the circuitand the outlet(s).

Branch Circuit, Appliance A branch circuit supplying energy to one or more outlets to whichappliances are to be connected; such circuits to have no permanently connected lighting fixtures not apart of an appliance.

Branch Circuit, General Purpose A branch circuit that supplies a number of outlets for lighting andappliances.

Branch Circuit, Individual A branch circuit that supplies only one utilization equipment.

Branch Circuit, Multiwire A branch circuit consisting of two or more ungrounded conductorshaving a potential difference between them, and an identified grounded conductor having equalpotential difference between it and each ungrounded conductor of the circuit and which is connectedto the neutral conductor of the system.

Building A structure which stands alone or which is cut off from adjoining structures by fire wallswith all openings therein protected by approved fire doors.

Building Space A room, vault, or wiring enclosures such as conduit, pull box, switchboards, andother like enclosures.

Cabinet An enclosure designed either for surface or flush mounting and provided with a frame, mat,or trim in which a swinging door or doors are or may be hung.

Circuit Breaker A device designed to open and close a circuit by nonautomatic means and to openthe circuit automatically on a predetermined overcurrent without injury to itself when properly appliedwithin its rating.

Concealed Rendered inaccessible by the structure or finish of the building. Wires in concealedraceways are considered concealed, even though they may become accessible by withdrawing them.

Conductor, Bare A conductor having no covering or electrical insulation whatsoever.

Conductor, Covered A conductor encased within material of composition or thickness that is notrecognized by these Orders as electrical insulation.

Conductor, Insulated A conductor encased within material of composition and thickness that isrecognized under the Electrical Safety Orders as electrical insulation.

Conduit (See Raceway.)

Connector, Pressure (Solderless) A device that establishes a connection between two or moreconductors or between one or more conductors and a terminal by means of mechanical pressure andwithout the use of solder.



Continuous Load A load where the maximum current is expected to continue for three hours ormore.

Controller A device or group of devices that serves to govern, in some predetermined manner, theelectric power delivered to the apparatus to which it is connected.

Cooking Unit, Counter-Mounted A cooking appliance designed for mounting in or on a counter andconsisting of one or more heating elements, internal wiring, and built-in or separately mountablecontrols.

Cutout Box An enclosure designed for surface mounting and having swinging doors or coverssecured directly to and telescoping with the walls of the box proper.

Damp Location Partially protected locations under canopies, marquees, roofed open porches, andlike locations, and interior locations subject to moderate degrees of moisture, such as some basements,some barns, and some cold storage warehouses.

Dead Front (As applied to switches, circuit breakers, switchboards, control panels, andpanelboards) Designed, constructed, and installed so that no energized parts are exposed on thefront.

Demand Factor The ratio of the maximum demand of a system, or part of a system, to the totalconnected load of a system or the part of the system under consideration.

Device A unit of an electrical system that is intended to carry but not utilize electric energy.

Different Systems Those which derive their supply from different sources, or from individualtransformers or banks of transformers which do not have their secondary windings interconnected, orfrom individual service switches.

Disconnecting Means A device, or group of devices, or other means by which the conductors of acircuit can be disconnected from their source of supply.

Dry Location A location not normally subject to dampness or wetness. A location classified as drymay be temporarily subject to dampness or wetness, as in the case of a building under construction.

Enclosed Surrounded by a case, housing, fence or walls that will prevent persons from accidentallycontacting energized parts.

Enclosed Area Roofed areas having at least 3 walls, or open sumps or pits into which highlyvolatile liquids are run, or areas surrounded by buildings or walls in which flammable vapors mayaccumulate.

Enclosure The case or housing of apparatus, or the fence or wall surrounding an installation toprevent personnel from accidentally contacting energized parts, or to protect the equipment fromphysical damage.

Energized Parts (Live Parts) Parts which are of a potential different from that of the earth, or someconducting body which serves in place of the earth.

Equipment A general term including material, fittings, devices, appliances, fixtures, apparatus, andthe like used as a part of, or in connection with, an electrical installation.

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CALO 2/18 STP

Explosion-Proof Apparatus Apparatus enclosed in a case that is capable of withstanding anexplosion of a specified gas or vapor which may occur within it and of preventing the ignition of aspecified gas or vapor surrounding the enclosure by sparks, flashes, or explosion of the gas or vaporwithin, and which operates at such an external temperature that a surrounding flammable atmospherewill not be ignited thereby.

Exposed (As applied to live parts) Capable of being inadvertently touched or approached nearer thana safe distance by a person. It is applied to parts not suitably guarded, isolated, or insulated.

Exposed (As applied to wiring methods) On or attached to the surface or behind panels designed toallow access.

Externally Operable Capable of being operated without exposing the operator to contact with liveparts.

Feeder All circuit conductors between the service equipment, or the generator switchboard of anisolated plant, and the final branch circuit overcurrent device.

Fitting An accessory such as a locknut, bushing, or other part of a wiring system that is intendedprimarily to perform a mechanical rather than an electrical function.

Ground A conducting connection, whether intentional or accidental, between an electrical circuit orequipment and the earth, or to some conducting body that serves in place of the earth.

Grounded Connected to earth or to some conducting body that serves in place of the earth.

Grounded Conductor A system or circuit conductor that is intentionally grounded.

Grounding Conductor A conductor used to connect equipment or the grounded circuit of a wiringsystem to a grounding electrode or electrodes.

Grounding Conductor, Electrode The conductor used to connect the grounding electrode to theequipment grounding conductor and/or to the grounded conductor of the circuit at the service or at thesource of a separately derived system.

Grounding Conductor, Equipment The conductor used to connect noncurrent-carrying metal parts ofequipment, raceways, and other enclosures to the system grounded conductor at the service and/or thegrounding electrode conductor or at the source of a separately derived system.

Ground-Fault Circuit-Interrupter A device intended for the protection of personnel that functions tode-energize a circuit or portion thereof within an established period of time when a current to groundexceeds some predetermined value that is less than that required to operate the overcurrent protectivedevice of the supply circuit.

Guarded Covered, shielded, fenced, enclosed, or otherwise protected by means of suitable covers,casings, barriers, rails, screens, mats, or platforms to remove the likelihood of approach or contact bypersons or objects to a point of danger.

In Sight From If specified that one equipment must be in sight from another piece of equipment,one must be visible and not more than 50 feet from the other.

Interlock An electrical, mechanical, or key-locked device intended to prevent an undesired sequenceof operations.



Interrupting Rating The highest current at rated voltage that an overcurrent protective device isintended to interrupt under standard test conditions.

Isolated Not readily accessible to persons unless special means for access are used.

Labeled Equipment or materials having a label, symbol, or other identifying mark of a nationallyrecognized testing laboratory, inspection agency, or other organization concerned with productevaluation that maintains periodic inspection of production of labeled equipment or materials and bywhose labeling is indicated compliance with nationally recognized standards or tests to determinesuitable usage in a specified manner.

Lighting Outlet An outlet intended for the direct connection of a lampholder, a lighting fixture, or apendant cord terminating in a lampholder.

Listed Equipment or materials included in a list published by a nationally recognized testinglaboratory, inspection agency, or other organization concerned with product evaluation that maintainsperiodic inspection of production of listed equipment or materials, and whose listing states either thatthe equipment or material meets nationally recognized standards or has been tested and found suitablefor use in a specified manner. The means for identifying listed equipment may vary for each testinglaboratory, inspection agency, or other organization concerned with product evaluation, some of whichdo not recognize equipment as listed unless it is also labeled. The authority having jurisdiction shouldutilize the system employed by the listing organization to identify a listed product.

Locking in the Open Position The use of lockable devices, such as padlocks, combination locks orother positive methods or procedures which will effectively prevent unexpected or inadvertentenergizing of a designated circuit, equipment or appliance.

Metal-Enclosed Refers to electrical apparatus surrounded by a metal case or housing.

Open Wiring Uninsulated conductors or insulated conductors without grounded metallic sheaths orshields installed above ground, but not inside apparatus or wiring enclosures.

Outlet A point on the wiring system at which current is taken to supply utilization equipment.

Outline Lighting An arrangement of incandescent lamps or electric discharge tubing to outline orcall attention to certain features such as the shape of a building or the decoration of a window.

Oven, Wall-Mounted An oven for cooking purposes designed for mounting in or on a wall or othersurface and consisting of one or more heating elements, internal wiring, and built-in or separatelymountable controls. (See Cooking Unit, Counter-Mounted.)

Panelboard A single panel or group of panel units designed for assembly in the form of a singlepanel including buses, automatic overcurrent devices, and with or without switches for the control oflight, heat, or power circuits; designed to be placed in a cabinet or cutout box placed in or against awall or partition and accessible only from the front.

Pipeline A length of pipe including pumps, valves, flanges, control devices, strainers and/or similarequipment for conveying fluids.

Positive Pressure Ventilation A mechanical ventilation system capable of providing a minimumoutward air velocity of 60 feet per minute through all openings.

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CALO 2/18 STP

Power Outlet An enclosed assembly which may include receptacles, circuit breakers, fuseholders,fused switches, buses and watt-hour meter mounting means; intended to supply and control power tomobile homes, recreational vehicles or boats, or to serve as a means for distributing power required tooperate mobile or temporarily installed equipment.

Premises Wiring (System) Interior and exterior wiring, including power, lighting, control, and signalcircuit wiring together with all of its associated hardware, fittings, and wiring devices; bothpermanently and temporarily installed which extends from the load end of the service drop, or loadend of the service lateral conductors to the outlet(s). Such wiring does not include wiring internal toappliances, fixtures, motors, controllers, motor control centers, and similar equipment.

Pull Box A box with a blank cover into which workers may reach but not enter which is inserted inone or more runs of raceway to facilitate pulling, joining, supporting, distributing or inspectingconductors. The term pull box includes but is not limited to: junction boxes, splice boxes, conductorsupport boxes, inspection boxes, and handholes.

Qualified Person A person, designated by the employer, who by reason of experience or instructionhas demonstrated familiarity with the operation to be performed and the hazards involved.

Raceway An enclosed channel designed expressly for holding wires, cables, or busbars, withadditional functions as permitted in these orders. Raceways may be of metal or insulating material,and the term includes rigid metal conduit, rigid nonmetallic conduit, intermediate metal conduit,liquid-tight flexible metal conduit, flexible metallic tubing, flexible metal conduit, electricalnonmetallic tubing, electrical metallic tubing, underfloor raceways, cellular concrete floor raceways,cellular metal floor raceways, surface raceways, wireways, and busways.

Rainproof So constructed, protected, or treated as to prevent rain from interfering with successfuloperation of the apparatus.

Raintight So constructed or protected that exposure to a beating rain will not result in the entranceof water.

Receptacle A contact device installed at the outlet for the connection of a single attachment plug. Asingle receptacle is a single contact device with no other contact device on the same yoke. A multiplereceptacle is a single device containing two or more receptacles.

Receptacle Outlet An outlet where one or more receptacles are installed.

Remote-Control Circuit Any electric circuit that controls any other circuit through a relay or anequivalent device.

Separately Derived System A premises wiring system whose power is derived from generator,transformer, or converter windings and has no direct electrical connection, including a solidlyconnected grounded circuit conductor, to supply conductors originating in another system.

Service The conductors and equipment for delivering energy from the electricity supply system tothe wiring system of the premises served.

Service Conductors The supply conductors that extend from the street main or from transformers tothe service equipment of the premises supplied.



Service Drop The overhead service conductors from the last pole or other aerial support to andincluding the splices, if any, connecting to the service-entrance conductors at the building or otherstructure.

Service-Entrance Conductors, Overhead System The service conductors between the terminals of theservice equipment and a point usually outside the building, clear of building walls, where joined bytap or splice to the service drop.

Service-Entrance Conductors, Underground System That portion of the service conductors betweenthe terminal box located either inside or outside the building wall, or the point of entrance in thebuilding if no terminal box is installed, and the service equipment.

Service Equipment The necessary equipment, usually consisting of a circuit breaker or switch andfuses, and their accessories, located near the point of entrance of supply conductors to a building orother structure, or an otherwise defined area, and intended to constitute the main control and means ofcutoff of the supply.

Service Lateral The underground service conductors between the street main, including any risers ata pole or other structure or from transformers, and the first point of connection to the service-entranceconductors in a terminal box or meter or other enclosure with adequate space inside or outside thebuilding wall. Where there is no terminal box, meter, or other enclosure with adequate space, thepoint of connection shall be considered to be the point of entrance of the service conductors into thebuilding.

Service Raceway The raceway that encloses the service-entrance conductors.

Suitable Capable of performing with safety the particular function specified in these Orders.

Switch, General Use A switch intended for use in general distribution and branch circuits. It is ratedin amperes, and it is capable of interrupting its rated current at its rated voltage.

Switch, General-Use Snap A form of general-use switch so constructed that it can be installed inflush device boxes or on outlet box covers, or otherwise used in conjunction with wiring systemsrecognized by the Low Voltage Electrical Safety Orders.

Switch, Isolating A switch intended for isolating an electric circuit from the source of power. It hasno interrupting rating, and it is intended to be operated only after the circuit has been opened by someother means.

Switch, Motor Circuit A switch, rated in horsepower, capable of interrupting the maximumoperating overload current of a motor of the same horsepower rating as the switch at the rated voltage.

Switchboard A large single panel, frame, or assembly of panels on which are mounted, on the faceor back or both, switches, overcurrent and other protective devices, buses, and usually instruments.Switchboards are generally accessible from the rear as well as from the front and are not intended tobe installed in cabinets.

Thermal Cutout An overcurrent protective device that contains a heater element in addition to andaffecting a renewable fusible member that opens the circuit. It is not designed to interrupt short-circuitcurrents.

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CALO 2/18 STP

Thermally Protected (as applied to motors) When appearing on the nameplate of a motor or motor-compressor, the words Thermally Protected indicate that the motor is provided with a thermalprotector.

Thermal Protector An inherent overheating protective device which is responsive to temperatureand/or current and which protects the equipment against overheating due to overload or failure tostart.

Utilization Equipment Equipment that utilizes electric energy for mechanical, chemical, heating,lighting, or similar purposes.

Vehicle A device by which any person or property may be propelled, moved, or drawn, except for adevice moved by human power or used exclusively upon stationary rails or tracks.

Vessel A container such as a barrel, drum, or tank for holding fluids or other material.

Volatile Flammable Liquid A flammable liquid having a flash point below 38C (100F) or whosetemperature is above its flash point.

Voltage (of a circuit) The greatest root-mean-square (effective) difference of potential between anytwo conductors of the circuit concerned. Some systems, such as 3-phase 4-wire, single-phase 3-wire,and 3-wire direct-current may have various circuits of various voltages.

Voltage, Nominal A nominal value assigned to a circuit or system for the purpose of convenientlydesignating its voltage class (as 120/240, 480Y/277, 600, etc.). The actual voltage at which a circuitoperates can vary from the nominal within a range that permits satisfactory operation of equipment.(See Voltage Ratings for Electric Power Systems and Equipment (60 Hz), ANSI C84.1-1977 andsupplement C84.1a-1980.)

Voltage to Ground For grounded circuits, the voltage between the given conductor and that point orconductor of the circuit that is grounded; for ungrounded circuits, the greatest voltage between thegiven conductor and any other conductor of the circuit.

Watertight So constructed that moisture will not enter the enclosure.

Weatherproof So constructed or protected that exposure to the weather will not interfere withsuccessful operation. Rainproof, raintight, or watertight equipment can fulfill the requirements forweatherproof, where varying weather conditions other than wetness, such as snow, ice, dust, ortemperature extremes, are not a factor.

Wet Location Installations underground or in concrete slabs or masonry in direct contact with theearth, and locations subject to saturation with water or other liquids, such as vehicle washing areas,and locations exposed to weather and unprotected.

ELECTRICAL.

Items to consider getting in advance:

Items to have facility personnel prepare or gather in advance:


.

.PART 2: PRE-AUDIT PREPARATION.


A copy of Cal/OSHAs Low Voltage Electrical Safety Orders, 8 CCR, Subchapter 5, Group 1standard.

None.

Acronyms and Abbreviations Used in This Module

ELCA/Part 2O-1 - 2

Electrical Pre-Audit Preparation

CALO 2/18 STP

A, amp(s) ampere(s)AC alternating currentASTM American Society for Testing

MaterialsC CelsiusCal/OSHA California Division of the

Occupational Safety and HealthAdministration

DC direct currentF Fahrenheitft foot/feet

gal gallon(s)hp horsepowerhr hour(s)kW kilowatt(s)LEL lower explosive limitm meter(s)min minute(s)mm millimeter(s)V volt(s)V-A volt-ampyr year(s)

ELECTRICAL.

Work Procedures


.

.PART 3: RULEBOOK.


This rulebook applies to all electrical installations and electrical equipment operating orintended to operate on systems of 600 volts (V), nominal, or less, and to all work performeddirectly on or in proximity to such electrical installations, equipment, or systems in all placesof employment in California (8 CCR 2305.2(a)).

1.

1.1 Only qualified persons may work on electrical equipment or systems.(8 CCR 2320.1)

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Guide Note Verify that only qualified persons are allowed to work on electrical equipment or systems (8 CCR 2320.1(a)). Verify that only qualified persons are permitted to perform any function in proximity to energized overhead

conductors unless means to prevent accidental contact have been provided in accordance with this section and8 CCR 2340.1 2340.27 (see section 2) (8 CCR 2320.1(b)).

1.2 Work must not be performed on exposed energized parts ofequipment or systems until certain conditions are met. (8 CCR2320.2(a))

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Guide Note Verify that all the following conditions are met before work is performed on exposed energized parts of

equipment or systems (8 CCR 2320.2(a)): responsible supervision has determined that the work is to be performed while the equipment or systems

are energized; involved personnel have received instructions on the work techniques and hazards involved in working on

energized equipment; suitable personal protective equipment and safeguards have been provided and are used;

NOTE 1: The use of approved insulating gloves or insulated tools or other protective measures is notrequired when working on exposed parts of equipment or systems energized at less than 50 volts provideda conclusive determination has been made prior to the start of work by a qualified person that there willbe no employee exposure to any electrical hazardsNOTE 2: Rubber insulating gloves must comply with the American Society for Testing Materials (ASTM)D 120-02a, Standard Specification for Rubber Insulating Gloves, and insulated tools must meet theprovisions of ASTM F 1505-01, Standard Specification for Insulated and Insulating Hand Tools.

approved insulated gloves are worn for voltages in excess of 250 V to ground; suitable barriers or approved insulating material are provided and used to prevent accidental contact with

energized parts; suitable eye protection has been provided and is used; where required for personnel protection, suitable barricades, tags, or signs are in place; and each employee who is exposed to the hazards of flames or electric arcs wears apparel that, when exposed

to flames or electric arcs, does not increase the extent of injury that would be sustained.NOTE: Clothing made from the following types of fabrics, either alone or in blends, are prohibited unlessthe employee can demonstrate that the fabric has been treated with flame retardant: acetate, nylon,polyester, and rayon.

ELCA/Part 3O-1 - 2

Electrical Part O-1 Rulebook

CALO 2/18 STP

1.3 An authorized person must take certain actions after the requiredwork on an energized system or equipment has been completed.(8 CCR 2320.2(b))

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Guide Note Verify that after the required work on an energized system or equipment has been completed, an authorized

person is designated to be responsible for the following (8 CCR 2320.2(b)): removing any temporary personnel protective equipment from the work area; and reinstalling all permanent barriers or covers.

1.4 All electrical equipment and systems must be treated as energizeduntil tested or otherwise proven to be de-energized. (8 CCR 2320.3)

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Guide Note Verify that procedures are in place to ensure that all equipment and systems are treated as energized as

required by 8 CCR 2320.2 (see paragraphs 1.2 & 1.3) until tested or otherwise proven to be de-energized priorto service or maintenance.

1.5 An authorized person must complete certain actions before workingon de-energized electrical equipment or systems, unless theequipment is physically removed from the wiring system. (8 CCR2320.4(a))

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Guide Note Verify that procedures are in place to ensure that an authorized person does the following prior to working on

de-energized electrical equipment (8 CCR 2320.4(a)): notifies all involved personnel; locks the disconnecting means in the open position with the use of lockable devices, such as padlocks,

combination locks, or disconnecting of the conductor(s) or other positive methods or procedures that willeffectively prevent unexpected or inadvertent energizing of a designated circuit, equipment or appliance;NOTE: See also 8 CCR 3314 (Control of Hazardous Energy (Module C2) Rulebook) for lock-outrequirements pertaining to the cleaning, repairing, servicing and adjusting of prime movers, machinery andequipment.EXCEPTION: Locking is not required under the following conditions:1) where tagging procedures are used as specified in the next dashed point; and2) where the disconnecting means is accessible only to personnel instructed in these tagging procedures.

tagging the disconnecting means with suitable accident prevention tags conforming to the provisions of8 CCR 2320.6 and 8 CCR 3314(c) ; and

effectively blocking the operation or dissipating the energy of all stored energy devices that present ahazard, such as capacitors or pneumatic, spring-loaded and like mechanisms.

1.6 An authorized person must take certain actions before energizingequipment or systems that have been de-energized. (8 CCR 2320.5)

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Guide Note Verify that an authorized person is responsible for the following prior to energizing equipment or systems that

have been de-energized (8 CCR 2320.5): determining that all persons are clear from hazards that might result from the equipment or systems being

energized; and removing locking devices and tags.



NOTE: Locking devices and tags may be removed only by the employee who placed them and must beremoved upon completion of the work and after the installation of the protective guards and/or safetyinterlock systems.EXCEPTION: When the employee has left the premises or is otherwise unavailable, other persons may beauthorized by the employer to remove the locking devices and tags in accordance with a proceduredetermined by the employer.

1.7 Suitable accident prevention tags must be used to control a specifichazard. (8 CCR 2320.6(a))

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Guide Note Verify that suitable tags are used and contain the following minimum information (8 CCR 2320.6(a)):

reason for placing tag; name of the person placing the tag and how that person may be contacted; and date tag was placed.

1.8 Safety precautions must be taken when working on electricalequipment and systems. (8 CCR 2320.7)

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Guide Note Verify that the following safety precautions are followed when working on electrical equipment and systems

(8 CCR 2320.7): suitable temporary barriers, or barricades, are installed when access to opened enclosures containing

exposed energized electrical equipment is not under the control of an authorized person; conductive measuring tapes, ropes, or similar measuring devices are not used when working on or near

exposed energized conductors or parts of equipment; conductive fish tapes are not used in raceways entering enclosures containing exposed energized parts

unless such parts are isolated by suitable barriers; prior to climbing poles or other elevated structures supporting overhead electrical lines or equipment, an

inspection is made to assure that such poles or structures are in safe condition for the work to beperformed; and

where poles or structures are determined to be unsafe for climbing, they are not climbed until made safeby guying, bracing, or other adequate means.

1.9 When work is performed at elevated locations more than 4 ft (1.2 m)above the ground on poles, towers, or similar structures, employeesmust use fall arrest equipment, work-positioning equipment, ortravel-restricting equipment if other fall protection methods have notbeen provided (e.g., guardrails, safety nets, etc.). (8 CCR 2320.8)

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Guide Note Verify that the use of fall protection is required when work is performed at elevated locations more than 4 ft

(1.2 m) above the ground on poles, towers, or similar structures (8 CCR 2320.8).NOTE: The use of body belts for fall arrest systems is prohibited.EXCEPTION: Point-to-point travel by a qualified person, unless conditions such as ice, high winds, design ofthe structure, or other condition (e.g., chemical contaminants) prevents the employee from gaining a firm handor foothold while traveling.

Requirements for Electrical Installations

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1.10 No permanent or temporary electrical power source may beconnected to a premises wiring system, or parts of such a system,unless positive means are used to prevent the transmission ofelectricity beyond the premises wiring system or beyond anyintentionally segregated parts of such system. (8 CCR 2320.9)

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Guide Note Verify that procedures are in place to prevent the connection of an electrical power source to premises wiring

unless positive means are used to prevent the transmission of electricity beyond the premises wiring system, orbeyond any intentionally segregated parts of such system (8 CCR 2320.9).EXCEPTION: This requirement does not apply when an interconnection has been authorized by the servicingutility.

1.11 Medical services and first aid must be provided in accordance withcertain requirements. (8 CCR 2320.10)

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Guide Note Verify that the employer provides medical services and first aid in accordance with 8 CCR 3400 (see Medical

Services and First Aid (Module C1) Rulebook) and the following additional requirements (8 CCR 2320.10): when 2 or more employees are performing field work on or associated with exposed lines or equipment

energized at 50 volts or more, at least 2 people trained in first aid and CPR must be available;EXCEPTION: Only one trained person need be available if all new employees are trained in first aid andCPR within 3 months of their hiring dates.

when employees are performing work on or associated with exposed lines or equipment energized at 50volts or more at a fixed location, sufficient people trained in first aid and CPR to ensure that eachemployee exposed to electric shock can be reached within 4 minutes must be available;EXCEPTION: Where the existing number of employees is insufficient to meet this requirement, allemployees at the work location must be trained.

first aid supplies required by 8 CCR 3400(c) must be kept in weatherproof containers if they could beexposed to the weather;

first aid kits must be kept readily available for use; and first aid kits must be inspected frequently enough (at least once a year) to ensure that they are properly

stocked.

2.

2.1 Electrical equipment must be maintained such that it is free fromrecognized hazards likely to cause death or serious physical harm toemployees. (8 CCR 2340.1 and 8 CCR 2340.2)

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Guide Note Verify that electrical equipment is free from recognized hazards and that the following considerations are used

in determining the safety of equipment (8 CCR 2340.1 and 8 CCR 2340.2(a)): the equipments suitability for installation and use;

NOTE: Listing or labeling of the equipment for its intended purpose is evidence of suitability. mechanical strength and durability, including the adequacy of parts designed to enclose and protect other

equipment; adequacy of space for wire-bending and connection; electrical insulation; heating effects under all conditions of use; arcing effects; classification of the equipment by type, size, voltage, current capacity, and specific use; and



any other factors that contribute to the safety of persons using the equipment or likely to come in contactwith it.

Verify that listed or labeled equipment is installed and used in accordance with any instructions included in thelisting or labeling (8 CCR 2340.2(b)).

2.2 Conductors must be properly insulated. (8 CCR 2340.5).

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Guide Note Verify that conductors are insulated as follows:

All conductors used for general wiring must be insulated unless exceptions are allowed by other sectionsof the low voltage safety orders (8 CCR 2340.5(a)).

The conductor insulation must be approved for the voltage, operating temperature, and location of use(8 CCR 2340.5(b)).

Insulated conductors must be distinguishable by appropriate color or other suitable means as beinggrounded conductors, ungrounded conductors, or equipment grounding conductors (8 CCR 2340.5(c)).

2.3 Completed wiring installations must be free from short circuits andfrom grounds other than those required or permitted by the LowVoltage Safety Orders. (8 CCR 2340.8)

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Guide Note Verify that all final wiring installations are properly insulated and free from inappropriate shorts or grounds

(8 CCR 2340.8) .

2.4 Electrical equipment intended to interrupt current must have asufficient interrupting rating. (8 CCR 2340.9)

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Guide Note Verify that equipment intended to interrupt current at fault levels has an interrupting rating sufficient for the

nominal circuit voltage and for the current that is available at the line terminals of the equipment (8 CCR2340.9(a)).

Verify that equipment intended to interupt current at other than fault levels has an interrupting rating atnominal circuit voltage sufficient for the current that must be interrupted (8 CCR 2340.9(b)).

2.5 All circuit protective devices used to clear a fault must not causeextensive damage to the electrical components of the circuit. (8 CCR2340.10)

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Guide Note Verify that the overcurrent protective devices, the total impedance, the component short-circuit current ratings,

and other characteristics of the circuit used to clear a fault are selected and coordinated to protect againstextensive damage to the electrical components of the circuit. The fault must be assumed to be either betweentwo or more of the circuit conductors, or between any circuit conductor and the grounding conductor orenclosing metal raceway (8 CCR 2340.10).

2.6 Conductors or equipment may not be placed in hazardous locationsunless approved for the purpose. (8 CCR 2340.11(a))

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Guide Note Unless approved for the purpose, ensure that no conductors or equipment are located (8 CCR 2340.11(a)):

in damp or wet locations (8 CCR 2340.11(a)(1));

ELCA/Part 3O-1 - 6


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where they will be exposed to gases, fumes, vapors, liquids, or other agents that could have a deterioratingeffect on them (8 CCR 2340.11(a)(2)); or

where they will be exposed to excessive temperatures (8 CCR 2340.11(a)(3)).

2.7 Electric equipment must be installed in a neat and workmanlikemanner. (8 CCR 2340.12)

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Guide Note Verify that unused openings in boxes, raceways, auxiliary gutters, cabinets, equipment cases, or housings are

effectively closed to provide protection substantially equivalent to the wall of the equipment (8 CCR2340.12(a)).

Verify that conductors in underground and subsurface enclosures that are entered for installation andmaintenance purposes are racked to provide ready and safe access (8 CCR 2340.12(b)).

Verify that internal parts of electrical equipment, including busbars, wiring terminals, insulators, and othersurfaces, are not damaged or contaminated by foreign materials such as paint, plaster, cleaners, abrasives, orcorrosive residues (8 CCR 2340.12(c)).

Verify that there are no damaged parts that may adversely affect safe operation or mechanical strength of theequipment, such as parts that are broken, bent, cut, or deteriorated by corrosion, chemical action, oroverheating (8 CCR 2340.12(d)).

2.8 Electrical equipment must be properly mounted and ventilated.(8 CCR 2340.13)

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Guide Note Verify that electrical equipment is firmly secured to the surface on which it is mounted (8 CCR 2340.13(a)).

NOTE: Wooden plugs driven into holes in masonry, concrete, plaster, or similar materials are not considered asecure means of fastening electric equipment.

Verify that electric equipment that depends on natural air circulation and convection principles for coolingexposed surfaces is installed so that room airflow over such surfaces is not blocked by walls or adjacentequipment. For floor mounted equipment clearance must be provided between top surfaces and adjacentsurfaces to dissipate rising warm air (8 CCR 2340.13(b)).

Verify that electrical equipment provided with ventilating openings is maintained so that free circulation of airthrough the equipment is not obstructed (8 CCR 2340.13(c)).

2.9 Electrical must be of the proper type, and properly identified.(8 CCR 2340.14)

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Guide Note Verify that devices such as pressure terminal or pressure splicing connectors and soldering lugs are identified

as to the material of the conductor they can be used with, and are properly installed and used (8 CCR2340.14(a)(1)).

Verify that conductors made of dissimilar metals (such as copper and aluminum, copper and copper-cladaluminum, or aluminum and copper-clad aluminum) are not intermixed in a terminal or splicing connectorwhere physical contact occurs between them unless the device is identified for the purpose and conditions ofuse (8 CCR 2340.14(a)(2)).

Verify that any materials such as solder, fluxes, inhibitors, and compounds, are suitable for the use and willnot adversely affect the conductors, installation, or equipment (8 CCR 2340.14(a)(3)).

Verify that conductors have a good connection to terminal parts without damaging the conductors, and theconnection is made by means of pressure connectors (including set-screw type), solder lugs, or splices toflexible leads (8 CCR 2340.14(b)(1)).EXCEPTION: Conductors that are No. 10 or smaller may be connected by means of wire binding screws orstuds and nuts having upturned lugs, or equivalent.

Verify that terminals for more than one conductor and terminals used to connect aluminum are properlyidentified (8 CCR 2340.14(b)(2)).



Verify that conductors are spliced or joined with splicing devices identified for the use or by brazing, welding,or soldering with a fusible metal or alloy. Soldered splices must first be spliced or joined to be mechanicallyand electrically secure without solder and then soldered. All splices and joints and the free ends of conductorsmust be covered with an insulation equivalent to that of the conductors or with an insulating device identifiedfor the purpose (8 CCR 2340.14(c)(1)).

Verify that wire connectors or splicing devices installed on conductors intended for direct burial are listed forthat use (8 CCR 2340.14(c)(2)).

2.10 Sufficient access and working space must be provided andmaintained around all electrical equipment to allow for safeoperation and maintenance. (8 CCR 2340.16)

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Guide Note Ensure that sufficient access and working space is provided and maintained around all electric equipment. Except as otherwise permitted in the Low Voltage Electrical Safety Orders, ensure that the working space for

equipment likely to require examination, adjustment, servicing, or maintenance while energized complies withthe dimensions indicated below (8 CCR 2340.16(b)):

Table 2.10: Minimum Dimension of Working Space

Voltage to Ground Minimum Clear Distance (Feet)

Condition: 1 2 3

0 150 3* 3* 3151 600 3* 3- 1/2 4

Source: 8 CCR 2340.16

NOTES:The conditions are as follows:1. Exposed energized parts on one side and no energized or grounded parts on the other side of the working space, or exposedenergized parts on both sides effectively guarded by suitable wood or other insulating materials. Insulated wire or insulatedbusbars operating at 300 V or less are not considered energized parts.2. Exposed energized parts on one side and grounded parts on the other side. Concrete, brick, or tile walls are considered asgrounded surfaces.3. Exposed energized parts on both sides of the workspace (not guarded as provided in Condition 1) with the operator between.*Exception: Minimum clear distances may be 2 ft 6 inches for installations built prior to April 16, 1981.

NOTE: In addition to the dimensions of depth shown above, the workspace in the direction of access to theequipment must not be less than 30 inches wide. Depth distances must be measured from the energized parts ifthey are normally exposed, or from the enclosure front or opening if they are normally enclosed. In all cases,the workspace must be adequate to permit at least a 90 opening of doors or hinged panels.EXCEPTION: Working space is not required in back of assemblies, such as dead-front switchboards or motorcontrollers, where there are no renewable or adjustable parts such as fuses or switches on the back and whereall connections are accessible from locations other than the back.

Verify that working space is not used for storage (8 CCR 2340.16(c)). Verify that when normally enclosed energized parts are exposed for inspection or servicing, the working space,

if in a passageway or general open space, is suitably guarded (8 CCR 2340.16(c)). Verify that at least one entrance of sufficient area is provided for access to the working space around electrical

equipment (8 CCR 2340.16(d)).NOTE 1: For switchboards and control panels rated 1,200 amps or more and over 6 ft wide, there must be oneentrance not less than 24 inches wide and 6 ft 6 inches high at each end of the workspace.NOTE 2: Attics, furred ceilings, and underfloor spaces must have minimum unobstructed access openings of22 inches by 30 inches.

Verify that portable or fixed illumination suitable for the nature of the work being performed is provided whenworking on electrical equipment (8 CCR 2340.16(e)).NOTE: The light fixtures and their control points must be arranged such that persons operating light switches,replacing lamps, or making repairs on the lighting system will not be endangered by energized parts of otherequipment.

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Verify that the headroom in working spaces around switchboards, panel boards, and motor controllers thatrequire manual operation, or where there are energized parts exposed at any time, is a minimum of 6 ft3 inches (8 CCR 2340.16(f)).

2.11 Energized parts of electrical equipment must be guarded. (8 CCR2340.17)

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Guide Note Verify that except as otherwise required or permitted by the Low Voltage Electrical Safety Orders, energized

parts of electrical equipment operating at 50 V or more are guarded against accidental contact by use ofapproved cabinets or other forms of approved enclosures or by any of the following means (8 CCR2340.17(a)): by location in a room, vault, or similar enclosure that is accessible only to qualified persons; by suitable permanent, substantial partitions or screens arranged such that only qualified persons will have

access to the space within reach of the energized parts, and any openings in such partitions or screens aresized and located so that persons are not likely to come into accidental contact with the energized parts orto bring conducting objects into contact with them;

by location on a suitable balcony, gallery, or platform that is elevated and otherwise located as to preventaccess by unqualified persons; or

elevated by 8.0 feet or more above the floor or other working surface. Verify that in locations where electric equipment is likely to be exposed to physical damage, enclosures or

guards are arranged and are strong enough to prevent such damage (8 CCR 2340.17(b)). Verify that entrances to rooms and other guarded locations containing exposed live parts are marked with

conspicuous warning signs forbidding unqualified persons to enter (8 CCR 2340.17(c)).

2.12 Any parts of electrical equipment that produce arcs, sparks, flames,or molten metal in ordinary operation must be enclosed or separatedand isolated from all combustible material. (8 CCR 2340.18)

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Guide Note Verify that any electrical equipment parts that produce arcs, sparks, flames, or molten metal in ordinary

operation are enclosed or separated and isolated from all combustible material.

2.13 Electrical equipment may not be used unless it is properly marked.(8 CCR 2340.21)

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Guide Note Verify that electrical equipment is not used unless it is marked with the following (8 CCR 2340.21(a)):

manufacturers name, trademark, or other descriptive marking by which the organization responsible forthe product may be identified; and

voltage, current, wattage, or other ratings. Verify that markings are of sufficient durability to withstand the environment in which they are located

(8 CCR 2340.21(b)).

2.14 Electrical equipment must be identified. (8 CCR 2340.22).

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Guide Note Verify that each disconnecting means required by the low voltage electrical safety orders is legibly marked to

indicate its purpose unless it is located and arranged so that the purpose is evident (8 CCR 2340.22(a)). Verify that each service, feeder, and branch circuit is legibly marked at its disconnecting means or overcurrent

device to indicate its purpose, unless it is located and arranged so the purpose is evident (8 CCR 2340.22(b)). Verify that each service disconnecting means plainly indicates whether it is in the open or closed position

(8 CCR 2340.22(c)).

Use and Identification of Grounded Conductors



Verify that markings are of sufficient durability to withstand the environment involved (8 CCR 2340.22(d)). Verify that all disconnecting means required by the low voltage safety orders installed on or after May 5, 2008

are capable of being locked in the open position (8 CCR 2340.22(e)). Verify that where circuit breakers or fuses installed on or after May 5, 2008 are applied in compliance with the

series combination ratings marked on the equipment by the manufacturer, the equipment enclosures have areadily visible marking that reads Caution--Series Combination System Rated (insert rating) Amperes.Identified Replacement Component Required. (8 CCR 2340.22(f)).

2.15 If a circuit is abandoned or discontinued, its conductors must beremoved from the raceways or it must be maintained as if in use.(8 CCR 2340.24)

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Guide Note Verify that conductors from abandoned or discontinued circuits are removed or that the circuit is maintained as

if in use.

2.16 In locations where electrical equipment would be exposed to physicaldamage, enclosures or guards must be of sufficient strength andarranged in a manner so as to prevent damage. (8 CCR 2340.26)

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Guide Note Verify that all electrical equipment is guarded from physical damage.

2.17 All switches, circuit breakers, fuses, and other control and protectivedevices must be located or arranged so that they may be safelyoperated, removed, or repaired. (8 CCR 2340.27)

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Guide Note Verify that all switches, circuit breakers, fuses, and other control and protective devices are located or arranged

so that they can be safely operated, removed, or repaired.

3.

3.1 Grounded conductors must be identified. (8 CCR 2350.2).

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Guide Note Verify that every conductor used as a grounded conductor or an equipment grounding conductor is identifiable

and distinguishable from all other conductors (8 CCR 2350.2(a)). Verify that no grounded or grounding conductor is attached to any terminal or lead so as to reverse the

designated polarity (8 CCR 2350.2(b)). Verify that any grounding terminal or grounding-type device on a receptacle, cord connector, or attachment

plug is not used for purposes other than grounding (8 CCR 2350.2(c)).

Branch Circuits

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4.

4.1 Where more than one nominal voltage system exists in a buildingcontaining multiwire branch circuits, each accessible ungroundedconductor of a multiwire branch circuit must be identified by phaseand system. (8 CCR 2360.1)

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Guide Note Verify that for all installations with more than one nominal voltage system in a building containing branch

circuits, built on or after May 5, 2008, each accessible ungrounded conductor of a multiwire branch circuit hasidentification of its phase and system permanently posted at each branch-circuit panelboard.

4.2 Receptacles and cord connectors must meet certain requirements forgrounding. (8 CCR 2360.2)

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Guide Note Verify that receptacles installed on 15 and 20 amp branch circuits are grounding type except as permitted for

replacement receptacles. Grounding-type receptacles must be installed only on circuits of the voltage class andcurrent for which they are rated, except as provided in Table 4.4.1 and Table 4.4.2 (8 CCR 2360.2(a)).

Verify that receptacles and cord connectors with grounding contacts have those contacts effectively grounded(8 CCR 2360.2(b)).EXCEPTIONS: Receptacles mounted on portable and vehicle-mounted generators in accordance with 8 CCR2395.6 and properly installed replacement receptacles.

Verify that receptacles and cord connectors with grounding contacts have those contacts effectively grounded(8 CCR 2360.2(b)).

Verify that the grounding contacts of receptacles and cord connectors are grounded by connection to theequipment grounding conductor of the supply circuit. The branch circuit wiring method must include orprovide an equipment grounding conductor to which the grounding contacts of the receptacle or cord connectoris connected (8 CCR 2360.2(c)).

Verify that replacement of receptacles complies with the following requirements (8 CCR 2360.2(d)): Grounding type receptacles must be used and connected where a grounding means exists in the receptacle

enclosure or a grounding conductor is installed; Ground-fault circuit-interrupter (GFCI) protected receptacles must be provided where replacements are

made at receptacle outlets that are required to be GFCI (see paragraph 4.3); and A nongrounding-type receptacle may be replaced with one of the following:

1) another nongrounding-type receptacle;2) a GFCI receptacle that is marked No Equipment Ground; or

NOTE: An equipment grounding conductor may not be connected from the GFCI receptacle to anyoutlet supplied from it.

3) a grounding-type receptacle supplied through a ground-fault circuit-interrupter.NOTE: The replacement receptacle must be marked GFCI Protected and No Equipment Groundand an equipment grounding conductor may not be connected to such grounding-type receptacles.

Verify that receptacles connected to circuits of different voltages, frequencies, or types of current (ac or dc) onthe same premises are designed so that the attachment plugs used on these circuits are not interchangeable(8 CCR 2360.2(e)).

4.3 Certain receptacles are required to be GFCI for personnel protection,and must be subjected to appropriate testing. (8 CCR 2360.3)

.

N/A

q

.

Complies

q

.

Does not comply

q

Guide Note Verify that all 120 volt (nominal), single-phase, 15 and 20 amp receptacles installed in bathrooms or on

rooftops have GFCI protection (8 CCR 2360.3(a)).



Verify that temporary wiring installations used during maintenance, remodeling, or repair of buildings,structures, or equipment meet the following requirements (8 CCR 2360.3(b)): All 120 volt (nominal), single-phase, 15, 20, and 30 amp receptacle outlets that are not part of the

permanent wiring of the building or structure and that are in use must have GFCI protection (8 CCR2360.3(b)(1)).NOTE 1: A cord connector on an extension cord set is considered to be a receptacle outlet if it is used fortemporary electric power.NOTE 2: Cord sets and devices incorporating the required GFCI that are connected to the receptacleclosest to the source of power are acceptable forms of protection.

All other receptacles that are not part of the permanent wiring of the building or structure and that are inuse must also have GFCI protection (8 CCR 2360.3(b)(2)).

Where GFCI protection is not available for receptacles other than 120 volt (nominal), single-phase, 15, 20,and 30 amp, the employer must establish and implement an assured equipment grounding conductorprogram covering cord sets, receptacles that are not a part of the building or structure, and equipmentconnected by cord and plug that are available for use or used by employees on those receptacles. Thisprogram must include the following (8 CCR 2360.3(b)(3)):1) A written description of the program, including the specific procedures adopted by the employer,

must be available at the jobsite for inspection and copying by the Division of Occupational Safetyand Health and any affected employee (8 CCR 2360.3(b)(3)(A)).

2) The employer must designate one or more qualified persons as defined in 8 CCR 2300 to implementthe program (8 CCR 2360.3(b)(3)(B))

electrical. part 1: introduction. part o-1:...

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