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"Don't Get Careless With Electricity:"Electricity is something that can not be seen and, yet, it is the most useful power

controlled by man. Although useful, it can be very destructive power to both man andmaterial if the proper precautions are not taken. The danger is always there, and we must

know what means of protection can be used to eliminate the hazards.

Even the seasoned electricians need to remember basic rules of electrical safety.Here are a few to keep in mind:

Jobsite electrical installation. The following rules only apply to electrical installations,both temporary and permanent, used on the jobsite.

1. Extension cords used with portable electrical tools and appliances shall be three

wire types. Never remove grounds from extension cords.

2. Temporary lights shall be equipped with guards to prevent accidental contact withthe bulb. Guards are not required when reflector is constructed in such a way that

the bulb is deeply recessed.

3. Temporary lights shall not be suspended by their electrical cords unless cords and

lights are designed for this means of suspension.4. Splices shall have insulation equal to half of the cable.

5. Electrical and extension cords or cables are not to be laid on floors, in walkways,or in similar locations unless it is impractical to do otherwise. They should be

suspended or secured in such a way as not to block or hang in walkways,

doorways, or work areas.6. Panel boxes shall have a cover on them at all times, except when being serviced.

When a temporary cover is in place, it should be marked "HOT" to denote live

current.

Portable power tools. In construction, portable power tools with defective wiring cause

many injuries. The following safe practices recommended.1. Tools with 3-wire plugs and make sure Use the connections are tight.

2. Check tools, equipment, and cables frequently for safe condition.

3. Disconnect tools before making adjustment or repairs.4. When using power tools in a wet area use caution: the shock hazards are

increased.

Electrical outlets. Before using an outlet make a safety check for loose cableconnections, bare wires, cracked outlets, and missing or damage face plates. When using

an outlet, be sure the plug fits firmly and check for any signs of heating caused by faulty

connections. Never yank a cord from an outlet because the action can break cord

insulation and wires, pull wire connections loose, bend plug prongs, and spread clipsinside the outlet.

Three-pronged outlets. Always guard three-pronged plugs. They are your shock

lifeguard. Never cut off the third prong to fit an older two-hole outlet. Never use a two-

wire extension cord with a three-pronged plug. If you use an adapter at a two-hole outlet,be sure the pigtail is attached to the faceplate screw. (You must test the screw for know

ground source.")

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Live Circuit panels

Circuit panels are typically found in central locations inside buildings and

often serve as the point at which electrical power is distributed within a building. Electrical panels or breaker boxes require special safety

considerations. Because electrical panels or boxes contain live electricity,

they require special safety considerations, including the following:

1. Assume all the electrical panels are live.

2. Label circuit breakers properly. Do not use tape to secure any breaker

in either an ON orOFFposition.

3. De-energize as much equipment as possible. Use portable floodlight

systems for lighting.

4. Wear heavy insulated rubber boots and gloves when working around

energized wiring.

5. Ensure that panel boxes have a cover on them at all times, except

when being serviced.

6. Do not block panel boxes. There should be at least 36 inches of clear

space inn front of the panel box.

7. Be sure all the liveparts are covered.

8. Always use breaker panel blanks in breaker boxes.