Grounding appliances

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  #1  
Old 04-20-00, 06:18 PM
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Our new kitchen appliance has a three wire electrical setup but our house has only two wire supply in that metal cable.

How can the appliance be grounded?
Does the green wire ground to the unit itself?
Or does the green go to the metal cable?

Thanks
 
  #2  
Old 04-21-00, 05:34 AM
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Sounds like you live in an older home. I'd take off the cover plate and see if indeed there is a ground wire inside. If not, change the receptacle to a three prong unit and attach a ground wire to the matel box.

Ted

P.S. I'm going to send this question and answer over to electrical for their opinion.
 
  #3  
Old 04-21-00, 09:49 AM
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When you remove the cover plate you will be able to see inside the box (to some extent).

You probably want to de-energize this circuit by throwing the breaker to "off."

Remove the upper and lower screws that hold the outlet to the box, and pull outward on the outlet. If you turned off the power you will not get shocked.

If you can see a bare copper wire, you have a grounded system. Remove the old 2-prong outlet and replace it with the 3-prong and have ground. Remember - black wire to gold screw, and white wire to silver screw.

Ground is a safety feature, but is not an absolute must. You appliances will work fine without it until . . . a tool or appliance plugged into that receptacle develops a hot-to-ground fault, the user can get shocked and possibly electrocuted.

Have an electrician run a ground to your system. They do these all the time to older homes.

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MTAC - Van Buren,MO
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Home repair & Construction

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[This message has been edited by More than a Carpenter (edited April 21, 2000).]

[This message has been edited by More than a Carpenter (edited April 21, 2000).]
 
  #4  
Old 04-21-00, 04:16 PM
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hello heathmac,
from the info in your post it sounds like u have what we call BX wireing, in older homes bx is common, and was used as the ground, if the bx goes all the way to the panel and your panel has a ground rod or is attached to your water pipeing then it actually is grounded, provided that the bx is intact all the way. you can install a 3 prong plug and ground to the box. i persionaly dont like this meathod, for reasions stated above, and will normaly allways install a ground wire whin dealing with bx.
 
 

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