5

Electrical Safety

5.1 Electric Shock and Lockout/Tagout

5.1.1 Introduction

Several occupational safety and health investigations have documented a number of fatalities whose circumstances suggest that the victims were unaware of the electrocution hazard from feedback electrical energy in power lines that were assumed to be de-energized. Occupational electrocutions from all causes continue to be a serious problem and take a very large toll on the workforce.

Safety laws are established to help provide safe working areas for electricians. Individuals can work safely on electrical equipment with today’s safeguards and recommended work practices. In addition, an understanding of the principles of electricity is gained. It is good practice to always ask supervisors when in doubt about a procedure. Additionally, reporting any unsafe conditions, equipment, or work practices as soon as possible can help reduce the number of electrical shock accidents and fatalities.

5.1.2 Fuses1

Confirm that the switch for the circuit is open or disconnected before removing any fuse from a circuit. When removing fuses, use an approved fuse puller and break contact on the hot side of the circuit first. When replacing fuses, first install the fuse into the load side of the fuse clip, then into the line side.

5.1.3 GFCIs2

Aground fault circuit interrupter (GFCI) is an electrical device which protects personnel by detecting potentially hazardous ground faults and immediately disconnecting power from the ...

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