Safety on shop floor
Transcript of 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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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