day 1 qod: what is a safety culture? when the whole company sees the value of a safe work...
TRANSCRIPT
Day 1QOD: What is a safety culture?
When the whole company sees the value of a safe work environment
Agenda:1. QOD & Measurements2. Basic Safety PP3. Video – Accidents4. Activity – 5 Types of Accidents5. Review
Standards:
AC-IFOS-2. Understand and practice construction safety.
Introduction - Basic Safety
Standards:
AC-IFOS-2. Understand and practice construction safety.
2.1- Demonstrate knowledge of use and care of PPE.
2.2 - Demonstrate a basic knowledge of OSHA and its regulations.
2.3 - Demonstrate a basic knowledge of safety as related as relates to personal safety,
ELACC9-10SL2: Integrate multiple sources of information presented in diverse media or formats (e.g., visually, quantitatively, orally) evaluating the credibility and accuracy of each source.
ELACC9-10SL4: Present information, findings, and supporting evidence clearly, concisely, and logically such that listeners can follow the line of reasoning and the organization, development, substance, and style are appropriate to purpose, audience, and task.
Introduction• Throughout the day, many tasks will be
repeated with little conscious thought. – This can make work dull and increases the chance
of an accident.
• Safety consciousness is a vital part of your work.
• Safety training is conducted to make you aware that dangers exist all around you every day.
• Jobsites are always changing and new hazards are continuously emerging.
Video:Construction Accidents
Importance of Safety
• Safety is a learned behavior and attitude, as well as a way of working.
• A safety culture is created when the whole company sees the value of a safe work environment.
Importance of Safety
• Companies with a strong safety culture have lower accident rates and a lower turnover of personnel.
• Other benefits…– fewer at-risk behaviors– lower absenteeism– higher productivity– can lower a company’s Experience Modification
Rate (EMR)
Importance of Safety
• Factors...– perceiving safety as a core value.– strong leadership.– the involvement of all employees.– using the workplace as learning environment.– continually monitoring performance.– effective communication of safety goals.
Accidents
• An accident is defined as an unplanned event that may or may not result in personal injury or property damage.
• Accidents can happen to anyone at any time, in any place.
Accidents
• 5 Types of Accidents:– Near-miss: no one injured and no property damage
– Property damage: results in damage to tools, material or equipment.
– Minor injuries: minor cuts, bruises, or strains but worker returned to full duty the next day.
– Serious injury: results in temporary or permanent disability.
– Fatalities: death
Accident Costs
• When an accident occurs, there are direct costs such as the medical costs of the injured worker, and indirect costs such as lost productivity and the cost of training a replacement worker.– Direct Cost: Can be foreseen
• Medical Bills• Worker’s Compensation• Liability Insurance Premiums
– Indirect, Hidden cost: Are not foreseen• Property damage• Equipment damage• Production delays• Supervisory time• Retraining• Image/Morale
Indirect Cost
• Indirect or hidden costs can exceed direct costs by two to seven times.
Activity:5 Types of Accidents
Objective: List the 5 types of accidents and give examples of each.
Group Task: Prepare a Tree Map to classify each type of accident and give examples of each. Be prepared to present work to the class (p 1.2).
CLASSIFYING
Tree Map
Review
• What is safety consciousness?• Is safety a learned behavior? Explain• What is a safety culture and what are the benefits?• What is the definition of an accident?• What are 5 types of accidents?• What is the difference between Direct Cost and
Indirect Costs?• How much do hidden costs exceed the amount of
direct costs?
Day 2QOD: How much do hidden costs of accidents usually exceed the direct
cost?
Two to seven times
Agenda:1. QOD & Measurements2. Basic Safety PP3. Video – Failure to Communicate4. Activity – 9 Causes of Accidents5. Review
Standards:
AC-IFOS-2. Understand and practice construction safety.
What Causes Accidents?
• 9 Causes of Accidents– failure to communicate– rationalizing risk– unsafe conditions– poor work habits– alcohol and drug abuse– lack of skill– intentional acts– unsafe acts– management system failure
What Causes Accidents?
• Poor Work Habits such as goofing off, carelessness, and horseplay can result in serious accidents.
What Causes Accidents?
• Rationalizing Risk is the act of ignoring safety warnings and practices because you make an excuse for doing so.
• Examples…– Crossing boundaries because no activity is in sight.– Not wearing safety goggles because it will only take a
minute to make a cut.– Removing your hard hat because you are hot and you can
not see anyone working overhead.– Not tying off your fall protection because you only have
to lean over about a foot.
What Causes Accidents?
• Unsafe Condition is the physical state that is different from the acceptable, normal, or correct condition found on the job site.
• Examples…– Congested workplace– Poor lighting– Excessive noise
What Causes Accidents?
• Alcohol and Drug Use are a major contributor to accidents on and off the job.–Many states prevent workers from collecting
insurance benefits if they are injured while under the influence of alcohol or illegal drugs.
– You should also be aware that some prescription drugs can affect performance as well. If you are taking prescription drugs, be sure you know how they can affect you.
What Causes Accidents?
• An Intentional Act is an attempt by someone such as a disgruntled or angry worker to deliberately cause an accident.
What Causes Accidents?
• An Unsafe Act is conduct that can lead to an accident. Unsafe methods are often easier or more convenient than doing something right. – This makes it easier to rationalize doing
something that is unsafe.
What Causes Accidents?
• Management System is when your employer and the construction site management must have a system in place to:– prevent accidents– identify conditions that can cause accidents– train employees in accident prevention.
• The absence of such a program is a management system failure
Housekeeping
• Housekeeping is the process of keeping the job site and your immediate work area neat and clean, will help a lot in preventing accidents.– The work area should be well lighted and have good
ventilation.– Tools, equipment, and materials should not be left lying
around for people to trip over.
• The major goal of housekeeping is to prevent accidents.
Video:Failure to Communicate
What Causes Accidents?
• Failure to Communicate means that workers and supervisors should never assume that others know what to do.– Safety information is most often communicated with
signs. – All work sites have specific markings and signs to
identify hazards and provide emergency information
• 4 types of signs:– Informational– Safety– Caution– Danger
Sign Examples
Informational Signs
• color – blue• provide general information.• Examples:– No Admittance– No Trespassing– For Employees Only
Safety Signs
• color – green panel with white letters• give general instructions and suggestions
about safety measures.• Examples:– First-aid station– Emergency eye wash station– Evacuation routes–Material Data Safety Sheets (MSDS)– Exits
Caution Signs
• color – black panel with yellow letters• tell you about potential hazards or warn
against unsafe acts.• Examples:– Hearing and eye protection required– Respirators are required– Smoking is not allowed
Danger Signs
• color – red, black, and white• tell you that an immediate danger exist and
that you must take precautions to avoid an accident.
• Examples:– Defective equipment– Flammable liquids– Safety barrier– High voltage– Emergency stop button
Activity9 Causes of Accidents
Objective: To choose a cause of accidents and illustrate examples of the chosen cause.
Group Task: Prepare a Multi-Flow Map with 3 causes and 3 effects from one of the 9 causes of accidents (pp 1.3-1.9).
CAUSE & EFFECT
Flow Map
Review
• What are some of the Causes of Accidents?• What is Rationalizing Risk?• Poor Housekeeping, excessive noise, and inadequate
guards for moving part are considered which cause of accident?
• What is the major goal of housekeeping?• What are the 4 Types of Signs• What is a Management System Failure?
Day 3QOD: List three of the nine causes of accidents on the jobsite?
failure to communicate, rationalizing risk, unsafe conditions
Agenda:1. QOD and Measurements2. Basic Safety PP3. Video – OSHA Introduction4. Activity – OSHA Inspections5. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
OSHA Regulations
• Occupational Safety and Health Act of 1970.• Mission:– to save lives– prevent injuries– protect the health of American Workers
• Code of Federal Regulation (CFR)– 29 CFR Part 1910 – covers OSHA’s standards
for the general industry.– 29 CFR Part 1926 - covers OSHA’s standards for
the construction industry.
Video:OSHA Introduction
http://www.dol.gov/dol/media/webcast/20110420-osha-40/
OSHA Regulations
• The General Duty Clause - invoked when a standard does not address a hazard.
• If the following elements are present , a general duty clause citation may be issued:– The employer failed to keep the work place free of
hazard.– The hazard was recognized, but not corrected.– The hazard was causing, or likely to cause, death or
serious physical harm.– There was a feasible and useful method to correct the
hazard.
OSHA Regulations
• Employee Rights and Responsibilities– If a worker has been discriminated against for
asserting his or her OSHA rights, that person has 30 days from the time of the incident to file a complaint with OSHA.
– Your employer is required by OSHA to maintain your job-related medical records for 30 years after you leave employment.
OSHA Regulations
• Inspections are conducted to insure employers are compliant with standards. There are 6 types.– Immanent danger: conducted when workers face an
immediate risk of death or physical harm.– Catastrophic: performed after an accident that requires
hospitalization of 3+ people. Employers are required to report fatalities and catastrophes to OSHA within 8 hours.
– Worker complaint: conducted due to complaint by worker.
– Programmed: aimed at high-risk areas.– Follow-up: completed after citation to assure employer
has corrected citation.– Monitoring: used for long-term abatement follow-up and
to assure compliance with variances.
OSHA Regulations
• A competent person is someone who is capable of identifying existing and predictable hazards and has authorization to take prompt corrective measures to eliminate such hazards.– To help employers provide a safe workplace, OSHA
requires companies to provide a competent person to ensure safety of their employees.
OSHA Regulations
• There are three categories of on-the-job events: injuries, accidents, and incidents.– An incident is anything that could have caused and
injury or damage but, because it was caught in time, did not.
– An accident is anything that causes an injury or property damage.
– An injury is anything that requires treatment, even minor first-aid.
Job Safety Analysis
• Job Safety Analysis (JSA) is one approach to hazard evaluation
• In a JSA, the task at hand is broken down into its individual parts or steps and then each step is analyzed for its potential hazards.
• For example in a Fall Protection Work Plan– Recognize Hazards– Provide Solutions– Identify Procedures– Define Training
Video:Job Safety Analysis – Fall Protection
Hazard Evaluation
• Risk assessment is a measure of the probability, consequence and exposure related to an event.
• Components:– Probability is the chance that a given event will
occur.– Consequences are the results of an action,
condition or event.– Exposure is the amount of time to which
someone or something is exposed.
Activity:OSHA Inspections
Objective: List important facts about 5 of the 6 types of OSHA inspection.
Group Task: Prepare a Tree Map to list important facts about 5 of the 6 types of OSHA inspection. Be prepared to present work to the class. (pp. 1.11)
CLASSIFYING
Tree Map
Review
• What does OSHA stand for, what is their mission?• What is the General Duty Clause?• How long does OSHA require your employer to keep
your medical records?• How many days does a worker who has been
discriminated against under OSHA rights have the right to file a complaint?
• What is the process of preparing a Job Safety Analysis?
• What are the components in risk assessment?
Day 4QOD: What is OSHA’s mission?to save lives, prevent injuries, protect the health of American Workers
Agenda:1. QOD2. Safety Pledge3. SLO Test4. Activity – OSHA Inspection5. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Day 5 QOD: In your own words, describe OSHA.
….
Agenda:1. QOD and Measurements2. Safety Pledge3. Basic Safety PP4. Video – 4 High-Hazard Areas5. Activity – Fall Protection and Job Hazard Analysis6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
OSHA Regulations
• The 4 high-hazard area
OSHA Regulations
• The 4 high-hazard area– Falls from elevation are accidents involving
failure to properly use appropriate fall protection.– Struck-by accidents involve unsafe operation
equipment, machinery, vehicles i.e. unsafe rigging operations.
– Caught-in accidents involve unsafe operation equipment, machinery, vehicles i.e. improper procedures at a trench site.
– Electrical shock accidents involve contact with overhead wires, use of defective tools, or improper ground fault protection.
Video:4 High Hazards
Personal Fall Arrest Systems (PFAS)
• A PFAS consists of a body harness, lanyards, lifeline, connecting devices, and anchor points.
• Always have your personal fall arrest system, PFAS, inspected monthly by a competent person.
Personal Fall Arrest Systems (PFAS)
• The lanyard attaches to the D-ring. The D-ring or support point on a safety harness should be placed to the rear, between your shoulder blades.
• A dual lanyard is an excellent method to enhance safe work operation.
Personal Fall Arrest Systems (PFAS)
Video:Falls – Roofs
Video:Falls – Safety Harness
Fall Protection
• Any opening in a wall or floor is a safety hazard. These openings can be guarded or they can be covered.
• Railings are used across wall openings or as a barrier around floor openings to prevent falls.
• Warning barricades alert workers to hazards but provide no real protection.– Warning barricade tape colored red means danger and no
one can enter.– Yellow signifies caution and allows entry. A yellow and
purple sign is used to indicate a radiation hazard.
• Protective barricades give both a visual warning and protection from injury. No one should be able to get past a protective barricade.
Fall Protection
Video:Falls- Floor Opening 1,2
Activity:4 High Hazard Areas
Objective: List the 4 High-Hazard Areas and give 3 examples of each.
Group Task: List the 4 High Hazard Areas on a Tree Map and give three examples of each. Review each example and be prepared to discuss with the class, a minimum of 3 each is required per area (p.1.13).
CLASSIFYING
Tree Map
Review
• What part of a safety harness does the lanyard attach to for safety?
• Where should the D-ring on a safety harness be placed?
• Who should inspect your fall arrest system monthly?
• What is the process of preparing a Job Site Analysis?• Which type of OSHA inspection involves reporting
fatalities and catastrophes to OSHA within 8 hours?
Day 5QOD: Where should the D-ring on a safety harness be placed?
To the rear, between your shoulder blades.
Agenda:1. QOD and Measurements2. Safety Pledges3. SkillsUSA – September 12th
4. Basic Safety PP5. Video –Ladder Safety6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Video:Fall – Ladder 1
Ladders
• Ladders are used to perform work in elevated locations.
• Metal ladders conduct electricity and must not be used around electrical equipment or wiring.
• Types:– Straight ladders– Extension ladder– Stepladder
Ladders
• Ladders should be secured at the bottom and top to prevent accidental movement.
Ladders
• Ladders are used to perform work in elevated locations.
• Metal ladders conduct electricity and must not be used around electrical equipment or wiring.
• Do not carry tools while climbing a ladder; use a hand line or tag line.
• Types:– Straight ladders– Extension ladder– Stepladder
Ladders - Straight
Ladders - Straight
• Straight ladders consist of two rails, rungs between the rails, and safety feet on the bottom of the rails.
• Using straight ladders– If you are going step off a ladder onto a platform
or roof, the top of the ladder should extend at least 3’ feet above the point where the ladder touches the platform, roof, side rails, etc.
Ladders - Extension
• Extension ladders are actually two straight ladders. They are adjusted so you can adjust the overlap between them and change the length of the ladder as needed.
• Using an extension ladder– 4 :1 Ratio – The base needs to be set-back 1’ for each 4’
of length to the upper support point.– 3 Point Contact - Either have both hands and one foot
or two feet and one hand touching the ladder at all times.– The highest safe standing level on an extension ladder is
the 4th rung from the top. Never climb over the 4th rung from top.
– Check to make sure the section locking mechanism, rung lock, is fully hooked over the desired rung.
Ladders - Extension
Ladders
Video:Fall – Ladder 2
Ladders - Step
Ladders - Step
• Step ladders are self-supporting ladders made of two sections hinged at the top.
• Using an step ladder–When positioning a step ladder, be sure that all
four feet are on a hard, even surface.
Video:Fall – Ladder 1
Stairways
• Stairways are also routinely used on construction sites where there is a break in elevation of 19” or more, and no ramp, runway, sloped embankment, or personal hoist is provided.
• OSHA requires that at least five foot-candles of light be available in stairways.– An example of an unsafe condition on a jobsite is
inadequate lighting in a stairway.
Review
• How far should a ladder extend past a platform?• What is the highest safe standing level on an
extension ladder?• What should be used to transport tools from one
floor to another?• What is the 4:1 ratio referring to in ladder safety?• What is 3 point contact referring to in ladder safety?• What is an example of an unsafe condition?
Day 6QOD: What is the 4:1 ratio?
A ladder safety rule where the base of a ladder must extend out 1’ horizontally for every 4’ of vertical distance
Agenda:1. QOD and Measurements2. Safety Pledges3. Basic Safety PP4. Video – Scaffolds5. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Video:Scaffolding
Scaffolds
• Scaffolds provide a safe elevated work platform for people and materials
• Two basic types of scaffolds are commonly used in construction:– Manufactured scaffolds– Rolling scaffolds
• Scaffolds are made of– painted steel– stainless steel– aluminum.
Scaffolds
• OSHA regulations provide for a system of tags to show the status of scaffolding.– A green tag means the scaffold is okay for use.– A yellow tag means the scaffold can only be used with a safety
harness and lanyard because it lacks some safety feature.– A red-tagged scaffold may not be used because it is being
assembled or taken down.
• If a scaffold is more than 10’ high, it must have top rails, mid-rails, and toe-boards, and all connections must be pinned.
• Cross-bracing is also required, and the work area must be completely planked.
• A competent person must inspect a scaffold before it can be used.
Scaffolds
Scaffolds
Video:Scaffolding
Struck-by Hazards
• Account for 18% of construction fatalities.• Primary Causes:– Vehicle and Equipment Strikes– Falling Objects– Flying Objects
Vehicle and Equipment Strikes
• Most common cause of accidents involving highway workers.
• When working on the ground near moving vehicles:– Never get into the operator's blind spot.– Keep off equipment unless authorized.– Wear reflective or high visibility vest
• When operating equipment on the job site:– Always wear a seatbelt– Look to the rear and sound the horn before backing up. If
your rear vision is blocked get a signaler to direct you.– Turn off the engine and set the breaks before you leave
the vehicle.
High Visibility Vest
• Wearing a reflective or high visibility vest is the best way to protect yourself when working near moving vehicles and equipment.
Falling Objects
• Workers on construction sites are at risk from falling objects. Avoid standing beneath any load on a crane or lift, and wear a hard hat at all times.
• Use toe-boards, debris nets, catch platforms, or canopies to catch or deflect falling objects.
• To prevent stacked material from falling over, never stack material higher than a 4:1 height-to-base ratio.
Video:Struck-by: Cranes
Flying Objects
• Power tools and activities such as pushing, pulling or prying can cause objects to become airborne.
• Chipping, grinding, brushing or hammering can cause objects to become airborne.
• To protect against flying objects…– Use eye protection i.e. safety goggles, face
shields.– Inspect tools to make sure protective guards are
in good condition.
Video:Struck-by: Guards
Review
• At what height must you don a harness when working on a scaffold with no rails?
• What are the tag colors associated with scaffolding and what do they mean?
• What can you use on a scaffold to prevent falling objects?
• What is used to protect workers from moving parts?• How many foot-candles of light does OSHA require
on stairways?• What are three rules that must be followed when
operating equipment on a job site?
Day 7QOD: How far past a platform should you extend a ladder?
3’
Agenda:1. QOD & Measurements2. Safety Pledges3. SkillsUSA – September 18th
4. Activity – Evacuation Procedures5. Activity – Donning a Safety Harness6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Activity:Donning a Safety Harness
Objective: To demonstrate proper use of a safety harness.• Individually, practice donning the safety harness.• Next, determine who the best in your group is at
donning a safety harness.• Next, fill in bracket and determine winner.
Activity:Evacuation Procedures
Objective: To demonstrate the route for each student to take during an emergency - including Fire, Tornado and Bomb Threat.
1. As a class, exit the building at the rear entrance as if there were a Fire.
2. Next, exit the building at the rear entrance as if there were a Bomb Threat.
3. Next, review the procedure for a Tornado Drill.
4. On a sheet of paper write the procedures down for a Fire and a Bomb Threat. Be sure to include the final destination.
5. Label the sheet on the top as Activity #3 and insert it into your notebook.
Day 8QOD: When working on scaffolding, what is a good way to protect against falling objects?
Use protective measures such as toe boards, debris nets, catch platforms, or canopies to catch or deflect falling objects.
Agenda:1. QOD and Measurements2. Safety Pledges3. Basic Safety PP4. Video – Trench5. Activity – Benching and Sloping6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Video:Curtis Zanussi Story
Caught-In-Between Hazards
• Congested work sites, heavy equipment, and multiple trades can contribute to caught-in-between hazards.
• Construction workers often have to work in trenches or excavations, where cave-ins and falling objects are common hazards.
• Primary Causes:– Trench/Excavation Collapse– Rotating Equipment– Unguarded Parts
Caught-In-Between Hazards
• Excavation vs. Trench– An excavation is any man-made cut, cavity,
trench, or depression formed by the removal of earth or soil.
– A trench is an excavation that is deeper than it is wide, and usually not wider than 15'.
• Hazards include…– Cave-Ins–Water Accumulation– Falling Objects– Collapse of Nearby Structure
Video:Trench
Caught-In-Between Hazards
• Soil Type is a key factor in determining the type of Protective System necessary to ensure that the trench will be safe.
• To be safe, treat soil as if it is type C soil unless proven otherwise.
• Trenches and excavations must be inspected at least daily by a competent person.
Caught-In-Between Hazards
• 4 Types of Soil Types– Solid Rock
• Excavation walls stay vertical as long as the excavation is open.
– Type A Soil• Fine grained and cohesive. Particles to small to see with the eye.
Clay and Caliche
– Type B Soil• Angular rock, silt, and similar soil.
– Type C Soil• Course grained, granular. Particles are visible to the naked eye.
Sand, Gravel
Caught-In-Between Hazards
• Protective systems protect workers from cave-ins, materials that can fall or roll into an excavation, and collapse of adjacent structures.
• Sloping and benching are similar forms of trench protection that cut away and slant the excavation face.
• Benching systems cannot be used in type C soils, because they will not hold the bench properly and will collapse.
Caught-In-Between Hazards
• Sloping - a method in which the sides of an excavation are cut back to a safe angle using relatively smooth inclines
Caught-In-Between Hazards
• Benching – similar to sloping, but instead of smooth inclines, the sides of the trench wall are cut back using a series of steps.
Caught-In-Between Hazards
• Both systems call for a safe angle called the maximum allowable slope (MAS).
• Type A soil allows the steepest slope, while type C soil allows the shallowest slope. – Type A Soil: 3/4 – 1, or 53 degrees– Type B Soil: 1 to 1, or 45 degrees– Type C Soil: 11/2 to 1, or 34 degrees
Type A Type B Type C
Video:Soil Types
Activity:Types of Soil and Protective Systems
Objective: Compare and contrast benching and sloping techniques.
Group Task: Prepare a Double Bubble Map to compare and contrast benching and sloping and determine which soils are appropriate in each system. (pp. 1.34-1.35)
COMPARING & CONTRASTING
Double Bubble Map
Review
• What is an Excavation?• What is a Trench?• What are the 4 types of soil?• What are different types of protective systems?• Which soils can be used on the sloping system?• Which soils cannot be used with a benching system?
Day 9 QOD: What is an excavation?Excavation is any man made cut, cavity, trench, formed by the removal
of soil.
Agenda:1. QOD and Measurements2. Safety Pledges3. SkillsUSA Membership– Tomorrow4. SkillsUSA Champion’s Rally – Tomorrow5. Basic Safety PP6. Video – Lockout/Tag-out7. Activity – Shoring and Shielding8. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Caught-In-Between Hazards
• Many trenches are in narrow places, so sloping and benching are not options.
• In these situations, support systems like shoring or shielding must be utilized.
• Shoring vs. Shielding• Shoring consist of plating held firmly in place
with expandable braces.• Shielding structures, or trench boxes, are placed
inside trenches or excavations, and are strong enough to protect workers in the event of a cave-in.
Caught-In-Between Hazards
• Shoring structure vs. Shielding Structure
• Soil, materials and equipment should be placed at least 2’ from the edge of the excavation.
Caught-In-Between Hazards
• Keep all materials and heavy equipment at least 2' from the edge of the excavation.– Barricades may be required to contain falling
material.
• Workers must be able to safely enter and exit a trench using a stairway, ladder, or ramp. There must be an exit every 25' for every trench over 4' deep.
Caught-In-Between Hazards
Caught-In-Between Hazards
• Almost all tools and machines used in construction are equipped with guards that protect workers from rotating parts. – Almost all tools and machines used in
construction are equipped with guards that protect workers from rotating parts.
Electrical Hazards
• No matter your trade you will use or work around electrical equipment.
• Types of electrical accidents:– Burns– Electrical shock– Explosions– Fires
Video:Electrocution – Mile Rousselle Story
Electrical Safety Guidelines
• The three-wire system is one of the most common safety grounding systems used to protect you from accidental electric shock. – The third wire is connected to a ground.
• With every power tool, use an assured ground program or GFCI.– Double insulated cords are also effective in preventing
shocks when using power tools.
• Use some sort of a Ground Fault Circuit with every tool. They are designed to shut off electrical power within 1/40 of a second.
Electrical Safety Guidelines
Electrical Lockout
• A system that safeguards workers from hazardous energy while they work with machines and equipment.
Video:Lockout/Tag-out
Activity:Types of Soil and Protective Systems
Objective: Compare and contrast shoring and shielding techniques.
Group Task: Prepare a Double Bubble Map to compare and contrast shoring and shielding and determine which soils are appropriate in each system. (pp. 1.34-1.35)
COMPARING & CONTRASTING
Double Bubble Map
Review
• What is an Excavation?• What is a Trench?• What are the 4 types of soil?• What are different types of protective systems?• Which soils can be used on the sloping system?• Which soils cannot be used with a benching system?• What are some ways to prevent electrical shock?• What is a lock/out tagout system?
Day 10 QOD: What can protect you from electric shock?
Three-wire cord, double-insulated cord and ground fault circuit interrupters.
Agenda:1. QOD & Measurement2. Safety Pledges3. Basic Safety PP4. Video – Exposures5. Activity – Personal Protection Equipment6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Personal Protective Equipment (PPE)
• You will be responsible for wearing appropriate PPE on the job and in the lab.
• PPE includes…– Hard Hat– Eye and Face Protection– Gloves– Foot Protection– Hearing Protection– Respiratory Protection
Personal Protective Equipment (PPE)
• Eye and Face Protection
Personal Protective Equipment (PPE)
• Gloves, Inspecting
1. Stretch the glove.
2. Trap air inside the glove.
3. Try to detect any air escaping.
4. If inspection fails, dispose of it.
Personal Protective Equipment (PPE)
• Hearing Protection– Clean earplugs with soap and water to prevent
ear infections.
Personal Protective Equipment (PPE)
• Respiratory System– A full face-piece mask with chemical canisters is
used to protect against brief exposure to dangerous gases and fumes.
–Wherever there is danger of an inhalation hazard, you must use a respirator.
Personal Protective Equipment (PPE)
• Respiratory System
Video:Exposures: Respirator Devices
Material Safety Data Sheet (MSDS)
• MSDS must accompany every shipment of a hazardous substance and must be available to you on the job site.
• The following is found on an MSDS:– Emergency first-aid procedures–Manufacturer contact information– Identity of the substance– Special control measures
Exposure
• Definition: refers to contact with a chemical, biological, or physical hazard.
• Types of exposure hazards:– Lead – toxic metal– Asbestos – prolonged exposure can cause lung
cancer, asbestosis, and a cancer called mesothelioma.
– Silica – causes silicosis and lung cancer– Bloodborne Pathogens – transmitted by contact
with an infectious person’s blood– Chemical Splashes – in the event that this
happens use shower or eyewash station
Video:Exposures: Asbestos, Silica, Isocyanate
Activity:Types & Uses of PPE
Objective: Name and determine the appropriate use for each type of PPE.
Group Task: Prepare a Tree Map to classify each type of PPE i.e. safety glasses, safety harness, gloves, etc. Be prepared to present work to the class.
CLASSIFYING
Tree Map
Review
• What are the appropriate steps to don electrical gloves?
• What must be included with every shipment of a hazardous substance and made available to workers on the jobsite?
• What kind of information is found on in MSDS?• What is Asbestos and what harm can it cause to a
worker?
Day 11QOD: What must be included with every shipment of a hazardous substance and made available to workers on the jobsite?
Material Safety Data Sheets, MSDS
Agenda:1. QOD & Measurement2. Safety Pledges3. Basic Safety PP4. Video – Heat Stress5. Activity – Heat Stress6. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Proximity Work
• Proximity work refers to work done near, but not in direct contact with a hazard such as hot piping, energized electrical equipment, operating machinery, pressurized or high temperature systems
• Barricades may be needed to avoid contact with these hazards, and special precautions may be needed during rigging operations to prevent objects from falling on the hazard.
Proximity Work
Welding and Cutting Hazards
• Welding can create an intense arc capable of damaging the eyes of anyone looking directly at it.– Proper eye protection, including flash goggles, must
be worn by everyone in the vicinity of arc welding. – When gas welding, welders are required to wear
tinted goggles with a filter lens of not less than No. 4
• UV radiation from a welding arc can cause flash burns to the eyes and skin.
• Welding shields may be needed to protect workers near the welding activity.
Welding and Cutting Hazards
• Different hoses are used for different gases.– The fuel gas hose is usually red, but may be
black. Its coupling nut has a left-hand thread, which is the opposite of the usual thread pattern.
– The oxygen hose is green and has a right-hand thread nut for connecting the torch.
• Look for charred on hoses. Charred sections of a welding hose may have been caused by flashback, result of welding flame flaring up.
Welding and Cutting Hazards
Welding and Cutting Hazards
Heat Stress
• Heat stress occurs when abnormally hot air or high humidity prevent your body from cooling itself fast enough.
• Results of heat stress:– Heat cramps – muscular pains and spasms caused by
heavy exertion.– Heat exhaustion – occurs when people exercise heavily
or work in a warm, humid place where body fluids are lost through heavy sweating.
– Heat stroke – is life threatening and occurs when the body-temperature control system, which produces sweat to cool the body, stops working.
Cold Stress
• Cold Stress occurs when your body temperature drops just a few degrees below normal, which is about 98.6°F.
• Results of Cold Stress– Frostbite – a dangerous condition that can have
lifelong effects on your body by loosing fingers, hands, limbs, etc.
– Hypothermia – a serious, potentially fatal condition and you do not have to be below freezing to be at risk.
Video:Heat Stress
Activity:Types of Cold and Heat Stress
Objective: List facts about each type of Cold and Heat Stress covered today.
Group Task: Prepare a Tree Map to classify each type of Cold and Heat Stress. Be prepared to present work to the class (pp. 1.59-1.61).
CLASSIFYING
Tree Map
Review
• What type of work refers to work done near, but not in direct contact with a hazard?
• When gas welding, what is the minimum filter lens a welder is required to wear for eye protection?
• What are the effects of Heat Stress?• What are the affects of Cold Stress?• When welding, what can cause charred sections of a
welding hose close to the torch?• What color is the fuel gas hose?• What color is the oxygen hose?
Day 12QOD: What are the three results of heat stress?
Heat cramps, exhaustion, stroke
Agenda:1. QOD & Measurement2. Safety Pledges3. Basic Safety PP4. Video – Confined Space5. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Video:Confined Spaces 1, 2 ,3
Confined Space
• A confined space is one that is large enough to work in, but has limited means of entry and exit, as well as limited ventilation.
Permit-required confined space
• A permit-required confined space is one that has been evaluated by a qualified person and found to have actual or potential hazards, therefore, a written permit is required to enter such spaces.
• Confined spaces may contain hazardous fumes. Or, the work being done, such as welding or metal cutting, may introduce hazardous fumes.
Permit-required confined space
Video:Confined Spaces - Introduction
Construction Ergonomics
• Ergonomics is the study of the physical impact that work-related movements, motions, and postures have on workers.
• Repetitive motion and constant vibration can cause injuries.
• Lifting is a six-step process that uses the muscles of the legs to avoid back injury.
Construction Ergonomics
Fire Hazards
• Fire is a potential hazard on any construction site.
• A fire needs fuel, heat, and oxygen to start. Fuel is any material that will burn, and oxygen is always available in the surrounding air.
• Heat is any action that will raise the fuel's temperature to the flash point, which starts the fire.
Fire Hazards
Classes of Fires
Review
• What is a confined space?• What is a permit required confined space?• What is the study of the physical impact that work-
related movements, motions, and postures have on workers called?
• What is required for a fire to burn?• At what point will a fire start?
Day 13QOD: What is used to protect against brief exposure to dangerous gases and
fumes?Full Face-piece Mask.
Agenda:1. QOD & Measurement2. Safety Pledges3. Activity – Module Review Questions (p.1.74-1.76)4. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Day 14QOD: What is found in a MSDS?
Emergency first-aid procedures / Manufacturer contact information / Identity of the substance / Special control measures
Agenda:1. QOD & Measurement2. Safety Pledges3. Activity – Trade Term Quiz (p.1.78-1.79)4. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Day 15QOD: What is life threatening and occurs when the body-temperature
control system, which produces sweat to cool the body, stops working?
Heat Stroke
Agenda:1. QOD & Measurement2. Unit Review3. Review
Standards:AC-IFOS-2. Understand and practice construction safety.
Day 16QOD: What is the difference between confined space and permit-required confined space?Permit-required confined space has been evaluated and determined to
have actual and potential hazards.
Agenda:1. QOD & Measurement2. Basic Safety – Test3. Review
Standards:AC-IFOS-2. Understand and practice construction safety.