-
FORUM
- Forum Home
- Today's Posts
-
- General Discussion
- Introductions
-
- Business Discussion
- Business
- Marketing & Sales
- Technology
-
BLOGS
- Recent Blog Entries
-
How to effectively use customer testimonials - even if you onl...
by RoofYourWorld -
Green Framing Presentation - Updated
by Tim Garrison PE
-
PROJECTS
-
REVIEWS
- Recent Reviews
-
Greenlee Glo-Stix...
-
DeWalt Self-Level...
- COMMUNITY
- WHAT'S NEW
Ground Rods For Soil With Bedrock
|
|
|
Thread Tools | Search this Thread | Display Modes |
03-07-2007, 09:07 PM
|
#1 |
|
Tower Guy
Trade: General Remodeling
Join Date: Nov 2006
Posts: 165
|
Ground Rods For Soil With Bedrock
What do you all suggest as the best method for adding ground rods in soil with bedrock lying 1-2 feet below the surface? I have seen ground panels for this application, but I'd like to get opinions/ideas...
|
|
|
Warning: The topics covered on this site include activities in which there exists the potential for serious injury
or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!
|
03-07-2007, 09:11 PM
|
#2 |
|
Pro
Trade: Commercial/Residental Construction
Join Date: Jan 2007
Location: Foothills NC
Posts: 132
|
Re: Ground Rods For Soil With Bedrock
You can lay it horizontally but it must be 2 1/2 feet deep per 250.53 (G).
Tim |
|
|
|
|
03-07-2007, 09:14 PM
|
#3 |
|
DGR,IABD
Trade: Electrical; Commercial and Residential Service
Join Date: Mar 2005
Location: Central PA
Posts: 9,680
|
Re: Ground Rods For Soil With Bedrock
A "plate electrode" is what it's called. You can make one. It need not be bought. Here's the highlights, from the code.
250.52(A)(6) Plate Electrodes. Each plate electrode shall expose not
less than 0.186 m2 (2 ft2) of surface to exterior soil. Electrodes of iron or steel plates shall be at least 6.4 mm (1⁄4 in.) in thickness. Electrodes of nonferrous metal shall be at least 1.5 mm (0.06 in.) in thickness. 250.53(A) Rod, Pipe, and Plate Electrodes. Where practicable, rod, pipe, and plate electrodes shall be embedded below permanent moisture level. Rod, pipe, and plate electrodes shall be free from nonconductive coatings such as paint or enamel. 250.53(H) Plate Electrode. Plate electrodes shall be installed not less than 750 mm (30 in.) below the surface of the earth. |
|
|
|
|
03-07-2007, 10:30 PM
|
#4 |
|
Tower Guy
Trade: General Remodeling
Join Date: Nov 2006
Posts: 165
|
Re: Ground Rods For Soil With Bedrock
Thank you!
|
|
|
|
|
03-08-2007, 09:33 PM
|
#5 |
|
Pro
Trade: Electrician
Join Date: Mar 2006
Location: Bucks County, PA
Posts: 320
|
Re: Ground Rods For Soil With Bedrock
would that be a 1ft square plate? = 1 ft surface area on each side? or do you read it as a 2ft square plate?
|
|
|
|
|
03-08-2007, 09:47 PM
|
#6 | |
|
DGR,IABD
Trade: Electrical; Commercial and Residential Service
Join Date: Mar 2005
Location: Central PA
Posts: 9,680
|
Re: Ground Rods For Soil With BedrockQuote:
https://www.electricmotioncompany.co...a572a2e974c3fa |
|
|
|
|
|
| Thread Tools | Search this Thread |
| Display Modes | Rate This Thread |
Linear Mode
|
|
Similar Threads
|
||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| Well, THAT'S a different ground wire! | rhinoguy | Electrical | 5 | 04-01-2007 01:21 AM |
| equipment ground | Bkessler | Electrical | 10 | 02-14-2006 09:06 PM |
| ground rods at pnl and mtr | seattle_sparky | Electrical | 8 | 02-01-2006 10:33 PM |
| Isolated ground to 3 outlets. | datafan | Electrical | 1 | 01-30-2006 02:07 AM |
