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A Ground Fault Circuit Interrupter (GFCI) measures the amount of current flowing from hot to neutral. If there is an imbalance it will trip and shut of power. It can detect and imbalance of as little as 4 milliamps. It reacts in 1/30 th of a second.
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What happens when you plug a GFCI protected extension cord into an outlet that is GFCI protected?
In a word NO, that will not cause either GFCI to trip. The correct term is GFCI (Ground Fault Circuit Interrupter)
What is the trip time for a GFCI?
The trip time for a GFCI is from 15 to 30 milliseconds.
How many amps does gfci trip at?
GFCI receptacle are designed to trip on 5 milliamps.
If the test switch is bad on a gfci will the breaker still work?
If the test switch is faulty then there is no convenient way to determine if the GFCI is functioning, and technically, if the test switch is faulty, then as it is a part of the GFCI, the GFCI is faulty and should be replaced.
Do all electrical outlets in a garage need to be GFCI?
Yes, but you can feed multiple outlets from one GFCI outlet. Make the first outlet fed in the cicuit a GFCI. Search for GFCI outlet with Google, etc. and I'm sure you will find an explanantion of how. Most GFCI's come with instructions also.
Do you need a gfci outlet if you have a gfci breaker?
Not if the GFCI breaker is supplying the circuit you are wanting to put the GFCI receptacle into.
Can you use a GFCI plug into a GFCI outlet?
Yes you can. Lots of blow dryers have GFCI protection built in.
What happens when you plug a GFCI protected extension cord into an outlet that is GFCI protected?
In a word NO, that will not cause either GFCI to trip. The correct term is GFCI (Ground Fault Circuit Interrupter)
May a GFCI receptacle be installed as a receptacle in an old installation where the 2-wire circuit has no equipment grounding conductor?
Actually, yes. The GFCI does not need any ground; it measures "leakage", i.e., an imbalance, regardless of whether there is "ground". The National Electrical Code permits installing a GFCI to replace a completely ungrounded receptacle. Others have said: No. The GFCI is designed to measure an unintended path to ground. Without a good ground reference this is not possible.
When there is a lot of rain the outside GFCI trips even though it is covered?
my gfci trips when my christmas lights r on and it rains is the gfci bad or is this normal of a perfectly working gfci
When would it be a better idea in a residence to install a GFCI breaker instead of an GFCI outlet?
GFCI Breakers are quite a bit more expensive than a GFCI outlet. More often than not a typical residence will need only a handful of GFCI outlets that combined together will be cheaper than a GFCI breaker. If you need to protect a series of outlets with GFCI protection you can simply connect the rest of the outlets on that same circuit downstream from the first outlet on the line and make that the GFCI. All you have to do is connect all the other outlets to the LOAD side of the GFCI outlet. If a GFCI fault occurs in any of the outlets down stream they will trip that very first GFCI plug you placed and keep you safe.
Can a circuit with a GFCI be shared at the box?
Your question is a bit vague, but let's try a two part answer. If you have a GFCI breaker in an electric panel you should only have one connection at the breaker, but the breaker will protect all devices on the circuit. If you are talking about a GFCI outlet, they are equipped to extend the GFCI protection to other non-GFCI outlets by using the proper "output" connection on the GFCI.
What is the trip time for a GFCI?
The trip time for a GFCI is from 15 to 30 milliseconds.
How many amps does gfci trip at?
GFCI receptacle are designed to trip on 5 milliamps.
If the test switch is bad on a gfci will the breaker still work?
If the test switch is faulty then there is no convenient way to determine if the GFCI is functioning, and technically, if the test switch is faulty, then as it is a part of the GFCI, the GFCI is faulty and should be replaced.
Do all electrical outlets in a garage need to be GFCI?
Yes, but you can feed multiple outlets from one GFCI outlet. Make the first outlet fed in the cicuit a GFCI. Search for GFCI outlet with Google, etc. and I'm sure you will find an explanantion of how. Most GFCI's come with instructions also.
What device senses short circuits and stops electrical flow when ground fault occur?
It is a Ground Fault Circuit Interrupter or GFCI. It can either be equipped in your electric panel as a GFCI breaker, or in a GFCI outlet which also lets you extend the GFCI protection to other outlets "down the line" from the GFCI outlet.
