Objective
To define procedures for the protection of electrical systems.
Table of Contents
Scope
This standard operating procedure (SOP) needs to be applied to all of the plant’s electrical systems.
Responsibility
- Technician
- Electrician
- Operator
- Engineer
Procedure
- Do not work on a live circuit. Ensure that all safety precautions have been followed and that you are accompanied by a second person who is capable of providing first aid & artificial respiration.
- Do not touch (or) tamper with any electrical gear (or) conductor except you have ensured that it is isolated and earthed.
- Do not open (or) close any switches or fuses slowly or hesitantly. Do it swiftly (or) positively in order to prevent sparking and contact with the live circuit.
- Avoid using wire with weak or inadequate insulation.
- Change a blown fuse only after you’ve determined and corrected the source of the problem.
- Do not close a switch until you are acquainted with the circuit it controls and understand why it is open.
- Do not touch any electrical circuit while your hands are wet (or) bleeding from a cut (or) injury.
- Do not work on an electrified circuit without following additional safety measures such as using rubber gloves, electrical rubber mats, and ensuring the circuit is properly earthed.
- Pulling a flexible cable to detach a plug while the switch is turned on is not recommended.
- In the event of a fire, avoid using a fire extinguisher on the live electrical equipment. Never use a soda acid-type fire extinguisher to fight an electrical fire.
- A class C fire extinguisher is ideal for fires in active electrical equipment.
- Because of their nonconductive properties, mono ammonium phosphate & sodium bicarbonate are frequently employed to combat this sort of fire.
- Do not attempt to extricate a person who has come into contact with live machinery that cannot be turned off instantly. Stand on a rubber mat (or) dry board to protect oneself from the elements while attempting to clear him.
- Do not touch his body; instead, push him clear using non-insulating material.
- Do not allow guests or unauthorized persons to touch or handle electrical equipment or enter inside the danger zone of high voltage (HV) apparatus.
- Do not test the circuit with your naked fingers.
- Conduct electrical inspection once every three months.
- Before beginning work, the area head should frequently examine the electrical apparatus & wiring.
- All worn, outdated, & damaged apparatus wires should be replaced immediately.
- Do not connect numerous extension cords to each other.
- Determine the capacity of the electrical sockets. Make certain that the amperage of the device being plugged in is not higher than the rating.
- Extension cables should only be used for flexible, temporary connections. Never use fixed wiring, when there is a permanent requirement for an electrical outlet to be built.
- Always use the appropriate personal protective equipment (PPE).
Earthing
- Earthing is necessary in order to dissipate the static charge that is created. Earthing is also provided in order to detect leak current by means of FLCB systems, which are responsible for disconnecting the equipment’s electric supply.
- Ensure that all electrical equipment is earthed, and in areas where there is a possibility of static electricity being generated.
- Ensure that earthing connections are not disconnected.
- Do not circumvent any of the safety devices that have been put on the main and equipment/apparatus.
- Once every three months, there should be a check on the earthing status of equipment.
Change History
| S.No | Enhancement Number | Date of Effect | Remark |
| 1 | |||
| 2 | |||
| 3 |
Assessment
| S.No | Name | Department | Signature/Date |
| 1 | |||
| 2 |
Abbreviations
- SOP – Standard Operating Procedure
- HV —High Voltage
- ELCB – Earth Leakage Circuit Breaker
Reference
Related Documents
Provided the electrical safety inspection checklist.
