As an electrical student we MUST know all the measures that has to be taken in the work place. A safe work environment is not always enough to control all potential electrical hazards. We must be very cautious and work safely. Safety rules help you control your and other risks of injury or death from work place hazards.
If you are working on electrical circuits or with electric tools and equipment, you need to use the following rules:1. Avoid contact with energized electrical circuits. Please don’t make fun of this rule if you already know this (and you probably already know if you are reading these lines) and remember that if something bad occurs-you probably won’t have other chance. That’s not funny.
2. Treat all electrical devices as if they are live or energized. You never know.
3. Disconnect the power source before servicing or repairing electrical equipment .The only way to be sure.
4. Use only tools and equipment with non-conducting handles when working on electrical devices .Easy to check.
5. Never use metallic pencils or rulers or ware rings or metal watch bands when working with electrical equipment. This rule is very easy to forget, especially when you are showing some electrical pointing with metallic pencil. Always be aware.
6. When it is necessary to handle equipment, that is plugged in be sure that hands are dry and when possible wear non-conductive gloves, protective clothes and shoes with insulated soles.
7. If it is safe to do so, work with one hand keeping the other hand at your side I your pocket away from all conducting material. This precaution reduces the likelihood of accidents that result in current passing through the chest cavity.
8. Minimize the use of electrical equipment or cold rooms or other areas where condensation is likely. If equipment is used in such areas, mount the equipment on a wall or vertical panel.
9. If water or chemical is spilled onto equipment, shut off power at the main switch or circuit breaker and unplug the equipment. Very logical, NEVER try to remove water or similar from equipment while energized. After all, it is stupid to do so.
10. If an individual comes in contact with a live electrical conductor, do not touch the equipment, cord or person. Disconnect the power source from the circuit breaker or pull out the plug using a leather belt.
Tricky situation and you must be very calm in order not to make the situation even worse.
11. Equipment producing a “tingle” should be disconnected and reported promptly for repair.
12. Do not rely on grounding to mask a defective circuit nor attempt to correct a fault by insertion of another fuse or breaker, particularly one of larger capacity.
13. Drain capacitors before working near them and keep the short circuit on the terminals during the work to prevent electrical shock.
14. Never touch another person’s equipment or electrical control devices unless instructed to do so. Don’t be too smart or don’t try your luck.
15. Enclose all electrical contacts and conductors so that no one can accidentally come into contact with them. If applicable do it always, if not be very careful.
16. Never handle electrical equipment when hands, feet, or body are wet or perspiring or even standing on a wet floor.
17. When it is necessary to touch electrical equipment (for example, when checking for overheated motors) use the back of the hand. Thus, if accidental shock were to cause muscular contraction, you would not “freeze” to the conductor.
18. Do not store highly flammable liquids near electrical equipment.
19. Be aware that interlocks on equipment disconnect the high voltage source when a cabinet door is open but power for control circuits may remain on.
20. De-energize open experimental circuits and equipment to be left un-attended.
21. Do not wear loose clothing or ties near electrical equipment.
ACT LIKE AN ELECTRICAL ENGINEER…….
From:
Navya sai,
3rd EEE.
Categories:
TECHNICAL ARTICLES(session-2)
