Safety on shop floor

8/4/2019 Safety on shop floor

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WHAT IS FAULT ?

- Any unwanted flow of current is Fault.

WHAT IS ELECTRIC SHOCK ?

- If the fault current involves Body, it is called shock. Which

gives injury and pain and can be fatal sometime.

WHAT ARE THE REASONS BEHIND

THIS ?

(1) Unsafe conditions

(2) Unsafe acts

(3) Negative habits and Attitude

(4) Lack of Supervision


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UNSAFE CONDITIONS

Unprotected / Inadequate Protection

Defective tools or equipments

Unsafe design of machine

Hazardous arrangement

Improper Illumination, Ventilation, Clothing

Bad housekeeping

Unsafe process


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UNSAFE ACTS

Operating without authority

Operating at unsafe speed

Bypass safety

Unsafe equipments / Mishandling

equipment

Unsafe loading or placing

Unsafe position


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4

NEGATIVE HABITS/ATTITUDE

Stubbornness : "I will do it in my own way

Over confidence : "It could never happen to me

Sarcasm : "What safety, safety is kid stuff?Carelessness : "Why should I bother about it?

Impatience : "It will take me a lot of time to it in

safe wayIgnorance : "I was not aware it is dangerous to do

it that way


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NEGATIVE HABITS/ATTITUDE

Laziness : "It will take a lot of effort and trouble to

do it the right way

Forgetfulness : "I wanted to do it the safe way, but

I forget

Showing off : "No problem, see how i do it

I DONT KNOW


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ROLE OF SUPERVISOR

Takes initiative with Management

Takes care of equipments

Takes proud in knowing safety

Takes leadership in new activity

Enforces good housekeeping

Keeps eyes on weakest worker

Continues Talk safety


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ROLE OF SUPERVISOR

Establishes good relation with Union

Sets himself as example

Creates environment for working together

Analyze accident & Corrective measures

Passes information to everybody

Allocated jobs with safety equipments


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EARTHING

Earth Terminal:- It is terminals provided on the frame of

machine for the purpose of making connection to earth.

Earth Continuity conductor :- It is a conductor connectingearthing lead those parts of an installation which are

required to be earthed. It can be in the form of :

o Metal strip

o Metal conduit

o Sheath of cable

o Flexible conductor


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EARTHING

Earth Lead :- It is the final conductor by which connection

to the earth electrode is made.

Earth Electrode :- It is a conductor/combination of conductor

buried in the earth in order to complete connection.

Value of Earthing resistance should be less then 1 ohm.

Checks :-

Should be checked once in a year, especially computer

& communication earth pits

Watering should be done in summer


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SAFETY PRACTICE

BENEFIT OF SHOES

(1) Without shoesL.T. service :-

Considering body resistance to be 1000 Ohms

Flow of current = 220/1000

= 220 mA - Fatal

(2) With Shoes :-

Considering shoes resistance to be 1000 Ohms(Wet)

Flow of current = 220/2000

= 110 mALess Fatal


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TOUCH & STEP VOLTAGE

220 V

Touch Voltage Step Voltage

Vt

Touching the body of m/c

Dangerous

Full voltage is applied

Voltage across feets

Remote fault can damage

Totally avoided by earthing


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PREVENTION OF ACCIDENT

Earth Motors to reduce Touch voltage

Transformer Neutral MUST be earthed

Provide rubber mat in front of panelsKeep the panel doors always closed

Keep the cable trenches closed

Avoid temporary connections

Use proper instrument


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PREVENTION OF ACCIDENT

Use Danger sign boards

Fencing should be provided for Tr. Yard


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MANAGEMENT INITIATIVES

Safety Committee

Equip workers with proper tools

Create awareness by Safety weekPosters & Safety awards

Stress on work discipline at all levels

Work permit system

Plan Routine maintenance programmes


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IF YOU DO NOTEARTH

YOU WILL BEEARTHED


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THANK YOUkapil jani- www.jptechnosoft.com

Documents

Safety on shop floor