Toolbox Minute: Electrical Safety Basics

“Electrical Safety Basics”

Electricity is something that cannot be seen and, yet, it is the most useful power controlled by man. Although useful, it can be very destructive power to both man and material 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 apply to electrical installations, both temporary and permanent, used on the job site.

• Extension cords used with portable electrical tools and appliances shall be three wire types. Never remove grounds from extension cords.
• Temporary lights shall be equipped with guards to prevent accidental contact with the bulb. Guards are not required when reflector is constructed in such a way that the bulb is deeply recessed.
• Temporary lights shall not be suspended by their electrical cords unless cords and lights are designed for this means of suspension.
• Splices shall have insulation equal to half of the cable.
• 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.
• 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.

• Use tools with 3-wire plugs and make sure the connections are tight.
• Check tools, equipment, and cables frequently for safe condition.
• Disconnect tools before making adjustment or repairs.
• When using power tools in a wet area use caution: the shock hazard is increased.

Electrical outlets

• Before using an outlet make a safety check for loose cable connections, 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 clips inside 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 known ground source.”)

“Action springs not from thought, but from a readiness for responsibility.”— Dietrich Bonhoeffer

Thanks for the share, TO!