ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

ECN Shout Chat
Top Posters(30 Days)
Admin 17
Recent Posts
Old decora style outlets
by Admin. 03/25/17 11:40 AM
ESA Arc flash course
by TheShockDoctors. 03/24/17 10:15 AM
fuse rejectors
by HotLine1. 03/24/17 07:53 AM
Another Forum Update
by Admin. 03/22/17 03:04 PM
Dining room plugs
by watersparkfalls. 03/21/17 10:31 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
231,474 Are you busy
166,181 Re: Forum
160,635 Need opinion
Who's Online Now
1 registered members (gfretwell), 52 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#26615 - 06/16/03 09:16 PM Grounding Rods  
LuminateME1  Offline
Member
Joined: Mar 2003
Posts: 22
Seattle,WA,USA
What is the purpose of two grounding rods? And, what is the code for distance between the two?


Work Gear for Electricians and the Trades

#26616 - 06/16/03 10:06 PM Re: Grounding Rods  
spkjpr  Offline
Member
Joined: Dec 2000
Posts: 218
Sedalia,MO, USA
Used for the code section about less than 25 ohms on ground rods or install 2 rod. the distance is not less than 6' apart Reference is 250.56 or .58 in 99 NEC, sorryI'm not under 2002 NEC yet.


#26617 - 06/17/03 07:53 PM Re: Grounding Rods  
Steve Miller  Offline
Member
Joined: Aug 2001
Posts: 325
Loudoun Cty, VA
The purpose is to insure a resistance of <25 ohms. Some of our local jurisdictions will allow only 1 if we want to set up the megger and prove to them that it's <25 ohms. Needless to say it's cheaper, quicker and easier to just install 2



Member Spotlight
renosteinke
renosteinke
Blue Collar Country
Posts: 5,316
Joined: January 2005
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.012s Queries: 14 (0.002s) Memory: 0.7486 MB (Peak: 0.8714 MB) Zlib enabled. Server Time: 2017-03-26 05:25:00 UTC