Prev | Next | Contents

GROUND FAULT CIRCUIT INTERRUPTER (GFCI), ELECTRICAL

Description: There are three types. One looks like a standard receptacle and is designed to be used as a receptacle. Another is a combination GFCI/circuit breaker and is installed in the circuit breaker box. The third type is portable with male and female plugs, sometimes with an integral extension cord.

Buying information: This is an important safety device. If an appliance or tool has stray current leakage of as little as 6/000 of an amp, the GFCI will sense it and shut off the current quickly to prevent a shock. They are particularly important -- and in many localities are required -- where water is used, such as on a line that goes to a pool, or in a bath or kitchen. There is normally a small amount of electrical leakage in house wiring and this can mistakenly trigger a combination GFCI/circuit breaker. Hence, many people opt for installing a receptacle type at the place it is needed, where the house leakage won't affect it.

GFCIs are available to protect 15- and 20-amp circuits.

How-to hints: Near a pool, inside a cellar workshop, and in garage areas on a slab, GFCIs deserve protection. When working outdoors with power tools, use a portable GFCI. Do not install a GFCI on a circuit that serves a fluorescent light. The electrical characteristics of the ballast in the light can mistakenly -- and repeatedly -- trigger the circuit, shutting it down. A GFCI should be installed only by the experienced do-it-yourselfer.

Prev | Next | Contents

Get a head start on improving your house with
Home Depot's Home Improvement 1-2-3.
Click here now to get this CD-Rom for free!

• You will find step-by-step instructions on over 250 household projects, plus hundreds of do-it-yourself tips.
  
• Includes 2,200 full-color illustrations, videos, animations and more. Save money and do-it-yourself now!
  
• All this on one CD-Rom sent directly to you for a small shipping & delivery charge.