||Thread Tools||Search this Thread||Display Modes|
|08-19-2011, 09:46 AM||#1|
I ask the impossible!
Join Date: Aug 2010
Location: Royal Oak, Michigan
Blog Entries: 7
Service entrance wire
When last I posted here, I had finally got my rough inspection passed:
Today, just short of 2 months later, the POCO finally moved their connection to my new service entrance.
I have a question though... I'm using 4/0 aluminum for everything going to the panel as required by code, as I understand it. And I knew to expect that an overhead line can be smaller. But my 4 gauge solid aluminum wire that was being used when I had 100 amp service is the same wire that they moved over and connected to the 200 amp service.
(I think it's 4-gage, I only really had a tape measure on hand for measuring, so I measured the wire as being about 3/16" diameter. That's wire without insulator, with the insulation it was 5/16" and I could see it was solid and not stranded.)
I've read elsewhere of 1/0 being used for 200 amps, and that this is the POCO's jurisdiction and isn't covered by NEC... And I know that overhead wire can be smaller because it gets more cooling from air that can be moving, but this is a huge difference in size and I can't help feeling a little uncertain as to whether this is really right...
Please do NOT consider any "before" picture of my house as any kind of endorsement of any particular construction method. In fact, you should probably assume that if I post a "before" picture, I am posting it because I am soliciting advice on a proper replacement for one of MANY things done wrong by a previous owner.
Last edited by WillK; 08-19-2011 at 09:48 AM.
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Service entrance wire||Arky217||Electrical||2||05-23-2011 07:15 AM|
|Still confused on garage and service entrance wires...||WillK||Electrical||19||04-29-2011 06:12 AM|
|New upgraded 200A service wire connections||WillK||Electrical||1||04-28-2011 02:02 PM|
|The service entrance move and upgrade to 200 A||WillK||Electrical||2||04-21-2011 04:42 PM|
|200 amp service entrance cable size||Chuck S||Electrical||7||01-08-2011 10:17 PM|