Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 11-17-2009, 05:52 AM   #1
Newbie
 
Join Date: Nov 2009
Location: Landenberg, PA
Posts: 3
Share |
Default

Is this correct and in compliance with NEC?


Hi all,

I'm new and looking for advice on something I want to do. Sorry for the long post but I'll try to explain it clearly.

I have now:
  • Main panel, 200A service on meter
  • Sub panel, 100A service
  • Generator panel for feeding some circuits
  • Separate off peak meter presently not used

The off peak meter goes to a single 220V 30amp breaker in its own box. It used to feed the water heater but was disconnected when the generator panel was installed. Now, the water heater is fed by the generator panel which is fed by the 100A feed from the main panel to the sub panel. The generator panel has an 'either or' (I don't know the correct term) main switch to feed it from either the generator or the 100A feed from the main panel.

I want to hook my dryer and water heater up to the off-peak meter.

I was planning to accomplish this by doing the following:
  • Change the breaker in the off-peak meter box from the existing 220V 30A to a 220V 70A (the box is rated for up to 70A)
  • Install a sub-panel that is fed from the off-peak meter box with #8 wire, the distance will be under 2 feet
  • Install 2 220V 30A breakers in the new sub-panel, one to feed the dryer and one to feed the water heater
  • Install an 'either or' switch at the water heater that allows me to feed the water heater from either my new sub-panel or my generator panel. The switch would have to be a break before make switch.

So, my questions are:
  • Is this to code?
  • What's the 'either or' switch I described called?
  • Do you have any suggestions for my installation?

Thanks in advance,

========
Steve

siearly is offline   Reply With Quote
Old 11-17-2009, 07:57 AM   #2
Member
 
joed's Avatar
 
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 7,445
Default

Is this correct and in compliance with NEC?


You may not be able to simply change the breaker to 70 amp. It depends on the size of the wires feeding the panel.

__________________
Do not PM with questions that can be asked in a forum. I will not respond.
joed is online now   Reply With Quote
Old 11-17-2009, 08:11 AM   #3
Newbie
 
Join Date: Nov 2009
Location: Landenberg, PA
Posts: 3
Default

Is this correct and in compliance with NEC?


Quote:
Originally Posted by joed View Post
You may not be able to simply change the breaker to 70 amp. It depends on the size of the wires feeding the panel.
Good point. The feed from the off-peak meter to the panel is 10 feet long and has the following markings:

XHHW CDRS 3000 VOLTS TO GROUND 2 CDRS 2 AL 1 CDR 4 AL

Physically, it contains two jacketed hot wires and one unjacketed twisted strand ground. All are aluminum.

Will this wire support a 70 main? If not what maximum load will it support?

Thanks,

========
Steve
siearly is offline   Reply With Quote
Old 11-17-2009, 09:15 AM   #4
Member
 
Join Date: Jan 2009
Location: South of Boston, MA
Posts: 17,248
Default

Is this correct and in compliance with NEC?


You say the off-meter is currently not in use ? Turned off ?
Usually these are for very specific uses
Pretty sure the water heater qualifies, I'm not sure on the dryer
Have you contected the POCO to run the change by them ?
Scuba_Dave is offline   Reply With Quote
Old 11-17-2009, 10:13 AM   #5
Newbie
 
Join Date: Nov 2009
Location: Landenberg, PA
Posts: 3
Default

Is this correct and in compliance with NEC?


Quote:
Originally Posted by Scuba_Dave View Post
You say the off-meter is currently not in use ? Turned off ?
Usually these are for very specific uses
Pretty sure the water heater qualifies, I'm not sure on the dryer
Have you contected the POCO to run the change by them ?
Not in use but not turned off. I've verified with the POCO and put a meter to it. They say I can connect anything I want to to it, as long as I'm okay with those devices being 'blacked out' during peak periods. For the HWH and dryer, I'm fine with that.
siearly is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
IS it correct? allawi Building & Construction 3 11-09-2009 06:49 AM
Correct oil level in Bristol compressor Aptguy HVAC 5 08-26-2009 09:56 AM
How do I pick the correct coaxial cable? fwmcbigfoot Home Theater 1 12-30-2008 09:45 AM
My roof is sagging - Correct Course of Correct Repair? young-jennifer Building & Construction 5 12-15-2008 07:59 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.