grounding electrode conductors

ECN Shout Chat

Give a Shout Out!

Shout Box

Who's Online Now

0 registered members (), 11 guests, and 27 spiders.

Key: Admin, Global Mod, Mod

Print Thread

Rate Thread

grounding electrode conductors #62269
02/12/06 02:37 PM 02/12/06 02:37 PM

lite bulb

OP
Member

Joined: Feb 2006
Posts: 78
wilm,de.

when derating sevice conductors 4/0 for 3/0 copper for a 200 amp service do you use #2 for the grounding electrode conductor or #4.

[This message has been edited by lite bulb (edited 02-12-2006).]

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

Re: grounding electrode conductors #62270
02/12/06 07:04 PM 02/12/06 07:04 PM

gfretwell

Member

Joined: Jul 2004
Posts: 9,251
Estero,Fl,usa

There is no relief in 250.66 for derated service conductors. If it is 4/0 copper you need the #2

[This message has been edited by gfretwell (edited 02-12-2006).]

Greg Fretwell

Moderated by dougwells, electure, gfretwell, HotLine1, Scott35, Trumpy

Featured:

2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

Member Spotlight

Grover
Sebago, ME, USA

Posts: 109
Joined: January 2005

Show All Member Profiles