Presentation by-

Aditya TalawadekarPrashant SomawanshiTarak ShisodeNikhil Sonawane

SAFETY ELECTROCUTED

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INTRODUCTION

Electricity is the general term encompassing a variety of phenomenon resulting from the presence and flow of electric charge

The word originates from the Latin, meaning "amber-like”, here amber (hardened plant resin) because electrical effects were produced classically by rubbing amber

GENERAL LAYOUT OF ELECTRICAL SUPPLY

ELECTRICITY GENERATION is the first process in the delivery of electricity to consumers.

ELECTRICITY GENERATION is the process of generating electric energy from other forms of energy.

British scientist Michael Faraday said that electricity is generated by the movement of a loop of wire, or disc of copper between the poles of a magnet.

ELECTRICITY GENERATION

ELECTRICITY POWER TRANSMISSION is the bulk transfer of electrical energy, from generating power plants to substations located near population centers

Transfer of electrical power from Generating Stations to the industrial, commercial or residential consumers is as important as power generation.

Transmission lines, when interconnected with each other, become high-voltage transmission networks. These are also known as "power grids" or just "the grid".

ELECTRICITY TRANSMISSION

ELECTRICITY DISTRIBUTION is the final stage in the delivery of electricity to end users. A distribution system's network carries electricity from the transmission system and delivers it to consumers.

The network includes medium-voltage (less than 50 kV) power lines, substations and pole-mounted transformers, low-voltage (less than 1 kV) distribution wiring

ELECTRICITY DISTRIBUTION

THE SURVEYMajor threats with

1.Open Street boxes2.Open Street lamps3.Open Live electrical cables4.Absence of control boxes on street

lamps5.Poor maintenance6.Cables lying on the footpaths7.Frequent expose to sun and rain can

lead to its wear and tear8.Electricity easily accessibale leading

to electricity theft

The street boxes in campus of MSEDCL was maintained properly which is ideal way of maintaining the street boxes

OUR VIEW The interview conducted following views were generated regarding the maintenance practices adopted by the MSEDCL.

During our interaction we took a look at the complaint form which had various common problems faced by the costumers listed one by one. But an option to complaint regarding the poor electrical safety in public places was missing.

The Executive Engineer told us about the various safety gears the electricians use. However when we asked the electricians to show these gears and tools, only the rubber gloves were shown. This raised a question in our mind whether they are equipped with all such gears and tools.

The answer we got for locking of the street boxes shows negligence of the officials. Most of the street boxes were

found without locks. The doors of the street boxes were tied temporarily using ropes. Thus, there was much scope

for improvement in the practices adopted by the MSEDCL.

Accident Based on Locations

0%

37%

50%

4%

4% 0%

6%

1 Generation

2 T & D lines - 11KV & above

3 T & D lines - 11KV & below

4 Industrial installations - Govt.

5 Industrial installatioms - Private

6 Other installations - Govt.

7 Other installations - Private

Accidents due to Causes

21%

40%

20%

10%4%

2% 3%

1 Snapping of Conductors

2 Accidental Contact with live electrical wire / equipment

3 Violation / Neglect of Safety measures / Lack of Supervision

4 Defective Appliances / Apparatus / Tools

5 Inadequate /Lack of Maintenance

6 Unauthorized work

7 Any other reasons

Electrical Safety  Safety can be defined as the control of

recognized hazards to achieve an acceptable level of risk.

Safety precautions need to be taken at every stage.

Should be documented in the form of Dos and Don’ts.

Warning signs must be displayed.

Why is Electrical Safety ? Serious injuries, deaths, and property

damage occur daily. Over 1000 electrical workers die each year

from workplace accidents. 97% of all electricians have been shocked

or injured on the job. Electrocutions are the 4th leading cause of

traumatic occupational fatalities.

Who is exposed?

Electric field is invisible and silent. Persons touching non-effectively earthed,

faulted metal parts in electrical installations are exposed.

Persons working in substation, power stations, transmission lines, cables etc are exposed.

Persons who are unaware of presence of electrical power.

 Approaches to prevent accidents

Enforcement of safety rules and acts. Electrical Safety Rules are to be made

mandatory. Psychological approach Awareness of safety

is created. Placing large signboards, displaying

drawings, DO’S and DON’TS. E.g. Short circuits can be handled by

automatic protection system.

The Indian Electricity Rules

Handling of electric supply lines and apparatus:◦ Provided with tools and devices

such as gloves, rubber shoes, safety belts, ladders , earthing devices, helmets.

◦ Every telecommunication line on supports carrying a high or extra-high voltage line shall, for the purpose of working thereon, be deemed to be a high voltage line.

Continued……… Street boxes:

◦ Street boxes shall not contain gas pipes, and precautions shall be taken to prevent.

◦ All street boxes shall be regularly inspected for the purpose of detecting the presence of gas.

◦ The owners of all street boxes or pillars containing circuits or apparatus shall ensure that their covers and doors are so provided that they can be opened only by means of a key or a special appliance