Homeownerinburb
Member
I purchased a house a while back that has three, yes, three panels. The original panel has ten circuits and a 40 amp master. It feeds most of the house. It is fed by a 100 amp panel that has breakers for the cook top and the wall oven, plus four 20 amp 120 v circuits. This was rendered a sub panel when central air was installed along with a 200 amp panel.
I saw that the sub panels did not have their ground connections to the panel up stream segregated from the neutral, so I went about installing lugs or small buss bars for the grounds to tie them to the panels while keeping the neutrals separate.
But I was having trouble. On the first panel described, one of the neutrals to a three wire circuit read as tied to the ground somehow, even after I had disconnected it from the buss bar and it was connected to nothing else.
The neutral seems to be tied to the ground somewhere down stream. How am I to find that?
And in the middle panel, the neutrals for the cook top and the oven seem to be likewise continuous to the ground, when tested similarly.
Possibly I am using the multi-meter poorly? I am just using the continuity setting with the audible alert. Should I be setting the meter for a particular resistance?
I saw that the sub panels did not have their ground connections to the panel up stream segregated from the neutral, so I went about installing lugs or small buss bars for the grounds to tie them to the panels while keeping the neutrals separate.
But I was having trouble. On the first panel described, one of the neutrals to a three wire circuit read as tied to the ground somehow, even after I had disconnected it from the buss bar and it was connected to nothing else.
The neutral seems to be tied to the ground somewhere down stream. How am I to find that?
And in the middle panel, the neutrals for the cook top and the oven seem to be likewise continuous to the ground, when tested similarly.
Possibly I am using the multi-meter poorly? I am just using the continuity setting with the audible alert. Should I be setting the meter for a particular resistance?