ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
VDE 0100 to introduce AFCIs
by sparky. 01/19/18 08:03 PM
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 12 guests, and 13 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Proper Grounding #36272
04/02/04 06:32 PM
04/02/04 06:32 PM
M
Merlin  Offline OP
Member
Joined: Jan 2004
Posts: 171
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
Re: Proper Grounding #36273
04/02/04 06:57 PM
04/02/04 06:57 PM
R
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

Re: Proper Grounding #36274
04/03/04 04:28 AM
04/03/04 04:28 AM
P
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. .


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
mxslick
mxslick
Atomic City, ID USA
Posts: 803
Joined: October 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 20
sparky 15
Potseal 15
Popular Topics(Views)
243,562 Are you busy
180,364 Re: Forum
170,842 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.010s Queries: 14 (0.002s) Memory: 0.9495 MB (Peak: 1.0740 MB) Zlib enabled. Server Time: 2018-01-20 14:43:41 UTC