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-   -   How to install a ceiling fan w/o a ground (http://www.diychatroom.com/f18/how-install-ceiling-fan-w-o-ground-112472/)

karebear09 07-30-2011 09:28 PM

How to install a ceiling fan w/o a ground
 
I live in a very old numerous additions home and when taking the old light fixture down there was no ground wire in the ceiling! Now what?:huh:

jmans8666 07-30-2011 11:33 PM

It will be alright. Just ground the new fan to the box

J. V. 07-31-2011 12:03 PM

It will be alright but not right.

jmans8666 07-31-2011 02:38 PM

But if your house is older wiring without a ground its fine

ernie_the_dog 08-01-2011 09:17 AM

The ground was invented for possible lightning strikes to the house. This rarely happens. Those in areas where it is highly likely should have their wiring updated. But for now hook the black wire to the black wire and white wire to the white wire. Either cut the ground off or screw it to the electic box. These days boxes are made of plastic and are not grounded so it would do no good to ground it to plastic if it is not grounded. Being grounded means that the electric box has either a ground wire running all the way back to the breaker box that has a ground that is grounded with a grounding rod or having metal boxes that are grounded with metal conduit that has a ground connected to this metal.

a7ecorsair 08-01-2011 10:31 AM

Quote:

Originally Posted by ernie_the_dog (Post 697942)
The ground was invented for possible lightning strikes to the house. This rarely happens. Those in areas where it is highly likely should have their wiring updated. But for now hook the black wire to the black wire and white wire to the white wire. Either cut the ground off or screw it to the electic box. These days boxes are made of plastic and are not grounded so it would do no good to ground it to plastic if it is not grounded. Being grounded means that the electric box has either a ground wire running all the way back to the breaker box that has a ground that is grounded with a grounding rod or having metal boxes that are grounded with metal conduit that has a ground connected to this metal.

If you are going to comment on the GES, OK. If you are going to comment on the EGC, OK. Don't mix thing up....

secutanudu 08-01-2011 11:08 AM

Quote:

Originally Posted by ernie_the_dog (Post 697942)
The ground was invented for possible lightning strikes to the house.

As a7ecorsair said...you are missing a huge part to this. The EGC is to trip the breaker if there is a ground fault. This has nothing to do with lightning.

jmans8666 08-01-2011 05:14 PM

Quote:

Originally Posted by ernie_the_dog
The ground was invented for possible lightning strikes to the house. This rarely happens. Those in areas where it is highly likely should have their wiring updated. But for now hook the black wire to the black wire and white wire to the white wire. Either cut the ground off or screw it to the electic box. These days boxes are made of plastic and are not grounded so it would do no good to ground it to plastic if it is not grounded. Being grounded means that the electric box has either a ground wire running all the way back to the breaker box that has a ground that is grounded with a grounding rod or having metal boxes that are grounded with metal conduit that has a ground connected to this metal.

Never cut a wire off just cap it

mpoulton 08-01-2011 08:48 PM

Quote:

Originally Posted by ernie_the_dog (Post 697942)
The ground was invented for possible lightning strikes to the house. This rarely happens. Those in areas where it is highly likely should have their wiring updated. But for now hook the black wire to the black wire and white wire to the white wire. Either cut the ground off or screw it to the electic box. These days boxes are made of plastic and are not grounded so it would do no good to ground it to plastic if it is not grounded. Being grounded means that the electric box has either a ground wire running all the way back to the breaker box that has a ground that is grounded with a grounding rod or having metal boxes that are grounded with metal conduit that has a ground connected to this metal.

Allow me to add onto this dogpile: You don't understand the difference between grounding and bonding. Grounding is what you describe. Bonding is the more important function of "ground" wires to equipment. The purpose is to ensure that the metal parts of the equipment cannot become electrified by a ground fault in the equipment. If a hot conductor shorts to the metal frame, the breaker will trip immediately because the metal is bonded to the system neutral through the "ground wire".


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