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GFCI Outlet

Quick Details : Place of origin : Guangdong , China ( Mainland ) Product name : GFCI outlet Type : Electric plug Color : Black/white/grey Product information : How does a GFCI outlet work ? That outlet is called a ground-fault circuit interrupter (GFCI). It's there to protect people from...

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Quick Details

Place of originGuangdongChinaMainland

Product nameGFCI outlet

TypeElectric plug

ColorBlack/white/grey

 

Product information

Poles

2P/3P

Frequency

50Hz~60Hz

Rated Voltage

110VAC/230VAC

Rated Current

10A/16A

In

6mA/10mA/30mA

Break Time

≤0.1S

Temperature

-20~+40±5

Cable model

1/1.5m

 

 

How does a GFCI outlet work

That outlet is called a ground-fault circuit interrupter (GFCI). It's there to protect people from electrical shock, so it is completely different from a fuse.

 

The question on appliance plugs talks about fuses. The idea behind a fuse is to protect a house from an electrical fire. If the hot wire were to accidentally touch the neutral wire for some reason (say, because a mouse chews through the insulation, or someone drives a­ nail through the wire while hanging a picture, or the vacuum cleaner sucks up an outlet cord and cuts it), an incredible amount of current will flow through the circuit and start heating it up like one of the coils in a toaster. The fuse heats up faster than the wire and burns out before the wire can start a fire.

 

So let's say you are outside with your power drill and it is raining. You are standing on the ground, and since the drill is wet there is a path from the hot wire inside the drill through you to ground (see How Power Distribution Grids Work for details on grounding). If electricity flows from hot to ground through you, it could be fatal. The GFCI can sense the current flowing through you because not all of the current is flowing from hot to neutral as it expects -- some of it is flowing through you to ground. As soon as the GFCI senses that, it trips the circuit and cuts off the electricity.


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