InterNACHI


Go Back   InterNACHI Message Board > Specific Inspection Topics > Electrical

Notices

Electrical Contains discussions about electrical systems. This includes outlets, panels, wiring, et cetera.

Reply
 
LinkBack Thread Tools
  #1  
Old 4/4/08, 9:45 PM
William J. Decker's Avatar
William J. Decker William J. Decker is offline
InterNACHI Member
 
Join Date: Nov 2004
Location: Skokie, IL
Posts: 6,526
Default A new way to assure that the ground rod is set deep enough

Saw this in a phased inspection. No need to actually "drive" the ground rod, just "backfill" around it.

Comments?
Attached Thumbnails
new-way-assure-ground-rod-set-deep-enough-dscf6469-small.jpg  



Will Decker, CMI
ILL License # 450.0002240
Board Certified Master Inspector
Decker Home Services, LLC
Chicago and Northern Suburban Home Inspections
Office: (847) 676-8393
Cell: (847) 609-2345
Home: (847) 673-2702

wjd@DeckerHomeServices.com
www.DeckerHomeServices.com

Learn, Educate, Serve and have fun doing it!
Reply With Quote
  #2  
Old 4/4/08, 11:09 PM
Marc D. Shunk's Avatar
Marc D. Shunk Marc D. Shunk is offline
Active Poster
 
Join Date: Dec 2006
Location: Central PA
Posts: 1,967
Please Note: Marc D. Shunk is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

If the home is served by underground metallic water piping, I wouldn't worry about the status of the soil surrounding the rod. The rod sucks as an electrode anyhow.
Reply With Quote
  #3  
Old 4/4/08, 11:54 PM
Thomas H. Dietrich's Avatar
Thomas H. Dietrich Thomas H. Dietrich is offline
InterNACHI Member
 
Join Date: Oct 2006
Location: Northampton County - Pa
Posts: 1,954
Send a message via Yahoo to tdietrich1
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by Marc D. Shunk
The rod sucks as an electrode anyhow.
La La La La La La ... ... ...

tom <covering ears, closed eyes, shaking head>

Reply With Quote
  #4  
Old 4/5/08, 12:23 AM
William J. Decker's Avatar
William J. Decker William J. Decker is offline
InterNACHI Member
 
Join Date: Nov 2004
Location: Skokie, IL
Posts: 6,526
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by Marc D. Shunk
If the home is served by underground metallic water piping, I wouldn't worry about the status of the soil surrounding the rod. The rod sucks as an electrode anyhow.
Sorry I didn't fully explain. This house was just back filled, about 20 minutes before the picture. No sewer or water supply as of yet.

Not that this doesn't mean that the water supply pipe will not be connected, but it is just plain wrong, this way.

Like they are going through all the "right moves", but without a friggin' clue of what it all means.



Will Decker, CMI
ILL License # 450.0002240
Board Certified Master Inspector
Decker Home Services, LLC
Chicago and Northern Suburban Home Inspections
Office: (847) 676-8393
Cell: (847) 609-2345
Home: (847) 673-2702

wjd@DeckerHomeServices.com
www.DeckerHomeServices.com

Learn, Educate, Serve and have fun doing it!
Reply With Quote
  #5  
Old 4/5/08, 12:48 AM
Marc D. Shunk's Avatar
Marc D. Shunk Marc D. Shunk is offline
Active Poster
 
Join Date: Dec 2006
Location: Central PA
Posts: 1,967
Please Note: Marc D. Shunk is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by wdecker
Like they are going through all the "right moves", but without a friggin' clue of what it all means.
What do you think it all means?

A rod electrode is among the biggest wastes of time there is. What it's designed to do, few rod electrode(s) installations meet the requirements. Drive that rod into undisturbed soil and you probably didn't enhance the installation enough to matter.
Reply With Quote
  #6  
Old 4/5/08, 2:08 AM
Brian E. Kelly Brian E. Kelly is offline
InterNACHI Member
 
Join Date: Oct 2004
Location: Phoenix, AZ
Posts: 11,749
Default Re: A new way to assure that the ground rod is set deep enough

No UFER ground Will?



"Never ever threaten anyone in Camoflage"
Tim Wilson

"Not everyone follows the same path"
Governor Sanford, musings on the Appalachian Trail
Reply With Quote
  #7  
Old 4/5/08, 10:05 AM
Richard L. Bennett Richard L. Bennett is offline
InterNACHI Member
 
Join Date: Mar 2005
Location: Frostproof, Fl
Posts: 2,323
Default Re: A new way to assure that the ground rod is set deep enough

Will did not you know about the new standard-----

The rod can not be covered up so the inspector can read all the UL - NEC etc crap that is on the top

And trust me they treated the fill with conductive enhancers so everything will be ok


Here is one for all of you

What would be an out of spec current on a ground rod?? It is so easy to check. Am I the only one doing it??

Could it be too high or too low and what would be the cause??

Is this something that an HI should even care about

Should we check to see if the ground rod is labled if we do not have to dig or kill trees to get to it.

Should we pull on the ground wire to even see if it is hooked to anything

Or we just be pricks since many think it is not needed anyway

Remember we are not code people and what harm is a bad ground -- Will we ever get called on a ground problem that we did not check???


rlb
Reply With Quote
  #8  
Old 4/5/08, 11:26 AM
Speedy Petey Speedy Petey is offline
Active Poster
 
Join Date: Jul 2006
Posts: 1,294
Please Note: Speedy Petey is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by rbennett
Remember we are not code people and what harm is a bad ground -- Will we ever get called on a ground problem that we did not check???
I have to chime in here.

Please describe what problems a "bad ground", as related to a ground rod, would be?
What "harm" are you referring to?
Reply With Quote
  #9  
Old 4/5/08, 1:03 PM
Greg Fretwell Greg Fretwell is offline
Active Poster
 
Join Date: Jul 2004
Location: Estero Florida
Posts: 1,798
Please Note: Greg Fretwell is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Pete, I know how a "bad ground" showed up at my house. It knocked the snot out of anyone who touched the stove when barefoot on the terazzo floor. (the night I moved in). Replacing the corroded clamp on the "useless" ground rod fixed it. Now I am grounded six ways from Sunday but simply fixing that old rod made the most "shocking" problem go away.
Reply With Quote
  #10  
Old 4/5/08, 1:47 PM
Speedy Petey Speedy Petey is offline
Active Poster
 
Join Date: Jul 2006
Posts: 1,294
Please Note: Speedy Petey is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Greg, I hold your opinion in high regard, believe that. I just find it hard to believe that a rod stuck in the earth cured a case fault on an applaince. How is this possible?
It is documented that a ground rod does NOT reduce touch potential nor does it assist in clearing a fault.
There HAS to be more to it.
Reply With Quote
  #11  
Old 4/5/08, 2:13 PM
Marc D. Shunk's Avatar
Marc D. Shunk Marc D. Shunk is offline
Active Poster
 
Join Date: Dec 2006
Location: Central PA
Posts: 1,967
Please Note: Marc D. Shunk is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by Greg Fretwell
Pete, I know how a "bad ground" showed up at my house. It knocked the snot out of anyone who touched the stove when barefoot on the terazzo floor. (the night I moved in). Replacing the corroded clamp on the "useless" ground rod fixed it. Now I am grounded six ways from Sunday but simply fixing that old rod made the most "shocking" problem go away.
Okay, brother, you're gonna have to explain that one, unless the laws of physics have been changed by the state of Florida. Fixing the corroded clamp may have made the issue less, but this is problem related to 3-wire supplied ranges and dryers in general, and fixing the rod clamp is not the cure. When you did that, you made your terazzo a parallel neutral path.

The grounding electrode serves two purposes... to give a lightning strike an easier path to the earth so it'll blow up less stuff in the house, and to give a high voltage spike (like from a downed line or messed up transformer) a path to the earth (and hopefully back the to utility system) and keep some of it out of your house. It does "okay" on both of these, but still not very good. A municipal water bond is superior to the rod electrode, I must say. The ground rod itself -sucks- at this duty, as one would normally find them installed in dwellings. Towers, naturally, are earthed with driven electrodes. These tower grounding systems are highly engineered and performance tested out the wazoo. For a dwelling, you drive a couple and hope for the best. Since I've actually done ground rod testing, my qualified opinion is that it doesn't matter for a hill of beans whether a person actually drove that rod or backfilled around it. Matter of fact, the code specifically permits you to lay a rod horizontally if certain conditions are met and fill over top of it.
Reply With Quote
  #12  
Old 4/5/08, 2:55 PM
Richard L. Bennett Richard L. Bennett is offline
InterNACHI Member
 
Join Date: Mar 2005
Location: Frostproof, Fl
Posts: 2,323
Default Re: A new way to assure that the ground rod is set deep enough

SP

DC ground - AC ground at 60 hz - RF ground - earth ground all different and cause different problems

Ground current is like water pressure it can be too high or too low

Even 8ft of conductor in bad dirt serves a purpose

Look at it like an antenna which is very much needed for a TV but this one in in the ground that sends and RECIEVES

So men what does your clamp on amp meter show on the ground wire on your house. Can you measure current less than an amp?

Remember the better the ground the higher the current

rlb
Reply With Quote
  #13  
Old 4/5/08, 3:04 PM
Richard L. Bennett Richard L. Bennett is offline
InterNACHI Member
 
Join Date: Mar 2005
Location: Frostproof, Fl
Posts: 2,323
Default Re: A new way to assure that the ground rod is set deep enough

Marc

Hooking up the wire made the floor and the stove common

We have no way of being sure why they were not

Wonder if the ground rod was bonded to the rebar in the floor if so the floor would be like standing on a conductive plate esp with a little dirt and water

Man that could smart when one is not quite awake in the morning

rlb
Reply With Quote
  #14  
Old 4/5/08, 4:08 PM
Michael D. Thomas Michael D. Thomas is offline
InterNACHI Member
 
Join Date: Oct 2005
Location: Evanston, IL
Posts: 639
Default Re: A new way to assure that the ground rod is set deep enough

Pulling on the clamp/rod is NOT a good idea:

http://ecmweb.com/grounding/electric...uth_grounding/



Michael Thomas
Paragon Property Services Inc., Evanston (Chicago) IL
http://www.paragoninspects.com
Reply With Quote
  #15  
Old 4/5/08, 4:40 PM
Mike Whitt's Avatar
Mike Whitt Mike Whitt is offline
Active Poster
 
Join Date: Sep 2005
Location: North Carolina
Posts: 474
Please Note: Mike Whitt is a non-member guest and is in no way affiliated with InterNACHI or its members.
Default Re: A new way to assure that the ground rod is set deep enough

Quote:
Originally Posted by rbennett
Marc

Hooking up the wire made the floor and the stove common

We have no way of being sure why they were not

Wonder if the ground rod was bonded to the rebar in the floor if so the floor would be like standing on a conductive plate esp with a little dirt and water

Man that could smart when one is not quite awake in the morning

rlb
Not if the grounded Neutral is installed correctly
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
"UFER" Ground? see last paragraph. jtedesco1 Electrical 6 9/15/08 8:57 AM
National Electrical Code Information and Discussion jtedesco1 Electrical 44 4/18/08 12:43 AM
Ground Wires Inside a Panel mveitenhans Electrical 13 10/29/06 12:39 PM
Two ground wires jlybolt Electrical 8 8/10/06 3:06 PM
Harmonized Ground Fault Circuit Interrupters jtedesco1 Electrical 5 3/21/06 9:48 AM


All times are GMT -4. The time now is 11:57 PM.


Copyright © International Association of Certified Home Inspectors, Inc. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147

Popular Sections

:

All Sections

Popular

Membership

Inspection Standards

Education

Chapters & Members

Articles & Links

Other Organizations

 

 

 

NACHI.ORG Statistics

 

 

no new posts