Can I replace a ground/neutral bar with a larger bar?
#41
04-10-15, 07:32 AM
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Thanks both.
Agree. I've concluded that from the conflicting info between websites. So far on this website there seems to be a very high degree of competence/knowledge/experience across the different areas from the moderators, etc.
Agree. I've concluded that from the conflicting info between websites. So far on this website there seems to be a very high degree of competence/knowledge/experience across the different areas from the moderators, etc.
#42
04-10-15, 07:38 AM
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One more again.
If the NM wires 's moved to the sub-panel are short and I need to lengthen them, do the connections/wire nuts need to be secured in a junction box?
If the NM's do reach the sub panel, but any of the NM wire between ceiling and subpanel has had the sheath removed when they were part of the main panel, does this have to be rectified?
If the NM wires 's moved to the sub-panel are short and I need to lengthen them, do the connections/wire nuts need to be secured in a junction box?
If the NM's do reach the sub panel, but any of the NM wire between ceiling and subpanel has had the sheath removed when they were part of the main panel, does this have to be rectified?
#43
04-10-15, 07:59 AM
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If the NM wires 's moved to the sub-panel are short and I need to lengthen them, do the connections/wire nuts need to be secured in a junction box?
If the NM's do reach the sub panel, but any of the NM wire between ceiling and subpanel has had the sheath removed when they were part of the main panel, does this have to be rectified?
#45
04-10-15, 09:17 AM
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Ok thanks
So here I'm not talking of only like bare ground wires. So if any red, black or green insulated wire are exposed outside of the panel or junction boxes because the main outer NM sheathing was removed, then I would cut those away, make the appropriate splices and utilize the junction boxes. At least that's how I interpret CJ.
The stripped cable with exposed wires cannot be outside of either a junction box or a panel.
#46
04-10-15, 10:11 AM
For those circuits I plan to move from the main to subpanel, all of the NM wire for those circuits coming down from the ceiling need to come out of the main panel
Splices can be made in the panel.
#47
04-10-15, 10:13 AM
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That is correct. 1/4 inch of sheathing inside the junction box. Be sure to use the proper cable clamps on the junction box and remember that the splice must be permanently accessible.
#48
04-10-15, 12:02 PM
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If the two panels are side by side connected by a nipple you can just extend the wire to the new panel using THHN of the same size and color.
#49
04-10-15, 12:07 PM
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That is correct. 1/4 inch of sheathing inside the junction box. Be sure to use the proper cable clamps on the junction box and remember that the splice must be permanently accessible.
#50
04-10-15, 12:29 PM
I could splice the two hots in the main panel and route them to the breaker in the sub panel via the nipple
I can land the grounds and neutrals to their respective bars in the main panel or else route them as well to the sub panel bars if no room in the main?
Last edited by ray2047; 04-10-15 at 01:01 PM.
#51
04-10-15, 09:03 PM
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If the boxes are connected by a metal nipple that serves as your ground.
#52
04-10-15, 09:45 PM
So if the nipple is sufficiently grounded, does that mean that the green wire (in Ray's diagram below) from the sub panel ground bar to the main panel neutral bar is not necessary?
#53
04-11-15, 05:48 AM
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If the boxes are connected by a metal nipple that serves as your ground. If concentric knockout or reducer washer is used a bonding bushing jumpered to the ground bar must be used.
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#54
04-11-15, 06:29 AM
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If the boxes are connected by a metal nipple that serves as your ground. If concentric knockout or reducer washer is used a bonding bushing jumpered to the ground bar must be used.
#55
04-11-15, 06:53 AM
One bushing in each box jumpered to that boxes ground bar (or ground/neutral bar).
If there are more then one size knock out one in side the other to allow you to open the knockout to multiple sizes that is a concentric or eccentric knock out.
Course my main panel looks like it has solid knockouts
#56
04-11-15, 07:38 AM
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#57
04-11-15, 08:09 AM
I could splice the two hots in the main panel and route them to the breaker in the sub panel via the nipple. I can land the grounds and neutrals to their respective bars in the main panel or else route them as well to the sub panel bars if no room in the main?
i pur...
