grounding outlet in detacted garage


  #1  
Old 11-17-03, 04:31 PM
rwboeck
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Question grounding outlet in detacted garage

Hey guys,

I've got a little problem. I have a detached garage that has electrical run to it but it isn't grounded. I would like to install a garage door opener but last I checked, they required a grounded outlet.

Is there anything that can be done that is easier than rerunning the cable back to the panel?

Thanks,
Rob
 
  #2  
Old 11-17-03, 04:34 PM
Speedy Petey's Avatar
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Not grounded at all??
Tell us what is run to the structure and how it is connected.
If you have what is needed you may be able to just sink a ground rod and bring it up to spec.
 
  #3  
Old 11-17-03, 05:22 PM
rwboeck
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Pete, it's an older house, ~50 years. The majority of the house isn't grounded except for about 3 circuits that were added. All I know at the moment is that the couple outlets currently in the garage are not grounded. I haven't explored too much to see how it comes into the garage but I can't imagine there is a ground wire and they didn't hook it up. They are 3 prong outlets so it's pretty easy to check.

Thanks,
Rob
 
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Old 11-17-03, 05:38 PM
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If this is the case it sounds like all that's run out is the circuits and not a panel feed or the like.
You'll have to see exactly what is run out to see if there is a way to ground it. Are the cables run inside the garage grounded?
Possibly it's a 3 wire cable with two circuits feeding the garage. You can use one of the wires for ground and combine the circuits (not preferred since you'll lose a circuit).
 
  #5  
Old 11-17-03, 07:05 PM
texsparky
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You should be able to use a gfci receptacle marked "no equipment ground". I don't believe that it is the manufacturers intent that people rewire their houses to accomodate their products. That instruction is a way of them covering their a** to prevent people from getting shocked in case of a malfunction in their product if no equipment ground is present or gfci protection is not used. A gfci outlet will offer that protection.
 
  #6  
Old 11-17-03, 08:36 PM
rwboeck
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I would have to say the cable going to the garage is a 2 wire without a ground.

Could a GFCI be tripped by a surge from a storm or anything?

Thanks,
Rob
 
  #7  
Old 11-18-03, 06:03 AM
texsparky
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Not likely. We had 8 inches of rain and 14 tornadoes in our area yesterday and none of mine tripped.
 
  #8  
Old 11-18-03, 06:43 AM
J
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But I would not put a garage door opener on GFCI unless I had a side door to that garage. Actually, without the side door, I don't think I'd use a GDO in any case.
 
 

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