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Serrano7503 07-14-2013 07:27 PM

Wire size for 100 service panel
 
I'm replacing an old existing 60amp service panel to 100amp, my question is what size wire to I need from the meter to the weather head so poco can hook up my service.
Had the meter location spotted already, permits have been pulled.

Also, is 1-1/2 rmc ok to use for the mast?

wirenut1110 07-14-2013 07:31 PM

#2 Al or #4 copper

Edit: yes 1 1/2" is fine.

usair 07-14-2013 07:32 PM

Quote:

Originally Posted by Serrano7503 (Post 1215941)
I'm replacing an old existing 60amp service panel to 100amp, my question is what size wire to I need from the meter to the weather head so poco can hook up my service.
Had the meter location spotted already, permits have been pulled.

Also, is 1-1/2 rmc ok to use for the mast?

#4 copper or #2 al for residential. The poco may want a larger mast ours requires a 2 inch minimum so check with them

Serrano7503 07-14-2013 07:33 PM

#4 for all 3 wires? what about the mast size?

Serrano7503 07-14-2013 07:34 PM

Thanks!

Serrano7503 07-14-2013 07:35 PM

One last thing.....I wrap the neutral in white tape to identify it, correct?

usair 07-14-2013 07:39 PM

Quote:

Originally Posted by Serrano7503 (Post 1215952)
One last thing.....I wrap the neutral in white tape to identify it, correct?

yes:thumbsup:

frenchelectrican 07-14-2013 11:35 PM

Quote:

Originally Posted by Serrano7503 (Post 1215941)
I'm replacing an old existing 60amp service panel to 100amp, my question is what size wire to I need from the meter to the weather head so poco can hook up my service.
Had the meter location spotted already, permits have been pulled.

Also, is 1-1/2 rmc ok to use for the mast?

#2 Al or #4 or #3 CU will work fine.

However check with your POCO on 1.5 inch rmc for mast and I am pretty sure you may end up backguyed that one and most case I normally go with 2 inches RMC that will take care of most common resdential drops ( up about 100 feet or so ) but any longer than that will be backguyed.

When you do the backguyed set up make sure you hit the sturcure wood not just a sheeting of roof at all. need to hit 2X4 rafter or simiair like that.

Merci,
Marc


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