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The risk of electric shock is greater in areas that are wet or damp. Install
Ground Fault Circuit Interrupters (GFCIs) as they will interrupt the electrical circuit
before a current sufficient to cause death or serious injury occurs.
Use a portable in-line Ground Fault Circuit Interrupter (GFCI) if you are not

certain that the receptacle you are plugging your extension cord into is GFCI
protected.
Make sure that exposed receptacle boxes are made of non-conductive
materials.
Know where the panel and circuit breakers are located in case of an
emergency.
Label all circuit breakers and fuse boxes clearly. Each switch should be
positively identified as to which outlet or appliance it is for.
Do not use outlets or cords that have exposed the wiring.
Do not use portable cord-and-plug connected power tools with the guards
removed.
Do not block access to panels and circuit breakers or fuse boxes.
Do not touch a person or electrical apparatus in the event of an electrical
accident. Always disconnect the power source first.

Some tips for working with power tools.
Switch all tools OFF before connecting them to a power supply.
Disconnect and lockout the power supply before completing any maintenance
work tasks or making adjustments.
Ensure tools are properly grounded or double-insulated. The grounded
equipment must have an approved 3-wire cord with a 3–prong plug. This plug should
be plugged in a properly grounded 3–pole outlet.
Test all tools for effective grounding with a continuity tester or a Ground Fault
Circuit Interrupter (GFCI) before use.
Do not bypass the on/off switch and operate the tools by connecting and
disconnecting the power cord.
Do not use electrical equipment in wet conditions or damp locations unless the
equipment is connected to a GFCI.
Do not clean tools with flammable or toxic solvents.
Do not operate tools in an area containing explosive vapours or gases, unless
they are intrinsically safe and only if you follow the manufacturer s guidelines.‟
Every good safety and health program provides measures to control electrical
hazards. The measures should be helpful in establishing such a program. The
responsibility for this program should be delegated to someone with a complete
knowledge of electricity, electrical work practices, and the appropriate OSHA
standards for installation and performance. Everyone has the right to work in a safe
environment. Safety and health add value to your business and your workplace.
Through cooperative efforts, employers and employees can learn to identify and
eliminate, or control electrical hazards.

Revision Questions

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