ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Admin 5
Recent Posts
Dimmable LED 2x4 lay in fixtures
by Potseal. 04/23/17 07:18 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
Electrode boilers question
by SteveFehr. 04/21/17 08:32 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,650 Are you busy
169,334 Re: Forum
162,672 Need opinion
Who's Online Now
0 registered members (), 68 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#36272 - 04/02/04 07:32 PM Proper Grounding  
Merlin  Offline
Member
Joined: Jan 2004
Posts: 170
NW Indiana
I just finished hooking up my new service to my home. As I was grounding the service disconnect panel, I got wandering. Is there a good way to check for a good ground at the ground rod.

In the past installations I have done, I use the reccomended ground rod for the soil type and area. (example - 5/8" x 10' for sand) If in doubt, I always go bigger. But is there a way to check to see if that is sufficient. Thanks, Kevin


Work Gear for Electricians and the Trades

#36273 - 04/02/04 07:57 PM Re: Proper Grounding  
Roger  Offline
Member
Joined: May 2002
Posts: 1,716
N.C.
There are numerous ways to check the ground rod resistance, this can be a fall of potential test which uses somewhat expensive testers, it can be a clamp type meter, you can actually apply voltage and use an amprobe. The truth is, the required 25 ohms at the ground rod doesn't mean much at our voltage levels, and unless you are shooting for some "performance" level of grounding, you are better off just driving two rods and then head to the house. [Linked Image]

Roger


#36274 - 04/03/04 05:28 AM Re: Proper Grounding  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
The traditional method used here for decades is the fall-of-potential method mentioned by Roger.

There's a description of it, along with other useful notes here. .



Member Spotlight
mxslick
mxslick
Atomic City, ID USA
Posts: 803
Joined: October 2004
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: 0.009s Queries: 14 (0.002s) Memory: 0.7500 MB (Peak: 0.8752 MB) Zlib enabled. Server Time: 2017-04-24 13:19:48 UTC