Is it permissible to work on live low voltage lines?

It should be avoided. Only in exceptional cases where it's not feasible to de-energize, it may be done by a competent person with specific precautions (Clause 4.1.1).

What is the 'two-person rule' in electrical work?

For any work on or near live conductors operating above 650 V, at least two competent persons must be present at all times (Clause 4.1.2).

What type of fire extinguisher should be used for electrical fires?

Carbon dioxide (CO2) or dry chemical powder (DCP) type extinguishers are recommended. Water-based extinguishers must not be used on live equipment (Clause 8.2).

What is the first step in rescuing a person from electric shock?

Switch off the power supply immediately. If not possible, use a non-conducting object (like dry wood or a rescue hook) to separate the victim from the live source (Appendix A).

IS 5216

: 1982

Guide for safety procedures and practices in electrical work

CurrentFrequently UsedGuidelinesFire Safety · Solar and Renewable Energy Installations

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This guide outlines fundamental safety procedures and practices for individuals working with or near electrical installations. It covers aspects like safety management, working on live and dead circuits, use of personal protective equipment (PPE), and emergency response like first aid for electric shock and firefighting. The standard aims to prevent electrical accidents and ensure a safe working environment for all personnel.

Provides general guidance on safety procedures and practices to be followed during electrical work.

Quick Reference Values

Minimum clearance from 11 kV live lines0.6 m

Minimum clearance from 33 kV live lines0.9 m

Minimum number of persons for work on live lines > 650V2

Minimum flash point for transformer oil in hazardous area140 °C

Practical Notes

Always treat a circuit as live until proven dead using a proper voltage detector and approved procedure.

This guide complements, but does not replace, the statutory Indian Electricity Rules which must be followed.

Effective implementation of Lock-Out Tag-Out (LOTO) procedures as described is crucial for preventing accidental re-energization of equipment under maintenance.