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Subject - grounding
sparks20 what is considered to be an open ground in an outlet and under what code is this covered??
lctrc789 An open ground in a receptacle is a recpt. that has no ground wire attached or not grounded at all.
Article 250-110 is one place to find out about grounding as well as article 210-7. Not to say that there isn't other articles but if you read these 2 articles it should explain grounded and grounding of receptacles for you.
sparks20 whats the best way to correct the problem..
1. Run a ground to the panel?
2.Run a jumper from the neutral to the box?
3.None of the above.
Ryan_J Don't even consider #2...this creates more problems than most people think
#1....yes, if you do it right.
lctrc789 Why is this recpt. or group of recpts. not grounded, because they are the old non grounding type or the wire itself does not have a ground.
Have you checked to see if it can be grounded A/C cable M/C cable or does the wire itself have a ground and the recpt. does not?
You DO NOT want to run any jumpers at all, you can run a wire to the panel for gounding as well a run a wire to a water pipe or ground rod and ground these recpts.
But 1st of all why do they not have a ground?
Pierre Belarge

Even though the NEC does permit installing an equipment ground conductor back to the panel, I am not too sure (unless someone can show me differently) why this is permitted. It does not seem like this is an "effective ground fault current path".

Pierre
lctrc789 Article 250-130 (c) describes how you can ground an ungrounded recpt. to any part of the grounding elctrode system.
Article 210-7 also states that you can replace an ungrounded recpt. with another ungrounded recpt. or ground it according to article 250-130 or use a GFCI. And then it shall not be grounded.
I think there reasoning in this is as simple as if you have a ground fault the ground wire whcih should be sized to the circuit would carry the fault sufficiently to trip a single breaker.
As well as you do have a grounded recpt.
sparks20 the wire in the house is old no ground. the odd thing is that not all are considered to have same problem.and they both seem to be at end runs. or is inspecter giving me a hard time??
jagerbombme i have trimmed after poor craftsman before and on outside gfi's had it where the ring had come somewhat loose after all the siding blocks and what not were installed, i would get open ground. i took a piece of wire and grounded it to the box which was grounded and solved the problem. but the box was grounded with conduit system