DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > panel/grounded




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 11-04-2012, 10:10 PM  
trigg
Junior Member
 
Join Date: Nov 2012
Posts: 7
Default panel/grounded

im trying to see if my panel is grounded and bonded ,have added a circuit and didnt see the bonding screw.It has a silver ground going from neutral bar to copper pipe(but is 25 ft away).
Any info is appreciatedimag0114.jpg

imag0116.jpg

imag0121.jpg



__________________
trigg is offline  
 
Reply With Quote Quick reply to this message
Old 11-05-2012, 11:10 AM  
Wuzzat?
Senior Member
 
Wuzzat?'s Avatar
 
Join Date: Jan 2010
Posts: 2,179
Liked 140 Times on 127 Posts
Likes Given: 78

Default

Grounded, bonded and meeting code are not always identical.
Do you have a multimeter?



__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 11-10-2012, 09:15 PM  
trigg
Junior Member
 
Join Date: Nov 2012
Posts: 7
Default

Yes I do...

__________________
trigg is offline  
 
Reply With Quote Quick reply to this message
Old 11-11-2012, 07:38 AM  
Wuzzat?
Senior Member
 
Wuzzat?'s Avatar
 
Join Date: Jan 2010
Posts: 2,179
Liked 140 Times on 127 Posts
Likes Given: 78

Default

With one of these
http://www.google.com/imgres?q=%22electrical+plug%22&um=1&hl=en&safe=off &client=safari&sa=N&tbo=d&rls=en&biw=1039&bih=765& tbm=isch&tbnid=LTjiIoACxMCK2M:&imgrefurl=https://www.sullivansupply.com/cart/tx/p-240-electrical-plug-end-male.aspx&docid=oN77vwmTDo1dfM&imgurl=https://www.sullivansupply.com/cart/tx/images/Product/medium/240.jpg&w=250&h=250&ei=BLefULGtBYqx0AGr8YCYCg&zoom =1&iact=hc&vpx=83&vpy=218&dur=17&hovh=200&hovw=200 &tx=111&ty=111&sig=102793154617015424895&page=3&tb nh=141&tbnw=141&start=50&ndsp=27&ved=1t:429,r:41,s :20,i:327
and a couple of clip leads you can turn an extension cord into a very long test lead for your meter. Then you measure the voltage between two points that are supposed to have electrical continuity between them.

If you read more than a few millivolts there is no continuity or there is enormous current flowing (not good) between these two points.

If you get less than 1 or 2 volts you should confirm continuity with a battery operated test light that uses a small incandescent bulb. These testers put at least 1/4A through the circuit being tested.

__________________
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 11-11-2012, 12:06 PM  
trigg
Junior Member
 
Join Date: Nov 2012
Posts: 7
Default

this will tell me if the box is bonded?

__________________
trigg is offline  
 
Reply With Quote Quick reply to this message
Old 11-11-2012, 01:33 PM  
Wuzzat?
Senior Member
 
Wuzzat?'s Avatar
 
Join Date: Jan 2010
Posts: 2,179
Liked 140 Times on 127 Posts
Likes Given: 78

Default

Bonded equals "low impedance electrical continuity" and also implies that the connection can stand to pass considerable current.

This tests continuity only. Whether it achieves this connection by NEC approved methods is another question.

Search this
http://freenec.com/T1.html
with keywords like bonded, bonding, bond, etc. Article 100 (which you should search) has definitions.

It's not the same as grounding. Space station wiring can be bonded.

With a few dollars for a transformer and power resistor you can pass heavy current through this connection and check the connection integrity with your meter.

__________________

Last edited by Wuzzat?; 11-11-2012 at 02:46 PM.
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Old 11-20-2012, 05:49 PM  
trigg
Junior Member
 
Join Date: Nov 2012
Posts: 7
Default

Hi thanks for the info.I went ahead and bonded the box in both areas(neutral bar screw and jumper) and secured the aluminum to copper pipe connection for grounding(with anti corrosion on it).
.Had to use a diffrerent bonding screw though..(green one-1 1/2 inch was too small)
If you see anything that looks off let me know.
imag0156.jpgimag0155.jpgimag0157.jpg



__________________
trigg is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
How to determine if a main breaker panel is grounded correctly? treimers Electrical and Wiring 4 01-22-2012 01:12 PM
Grounded Wiring? Jlundstrom Electrical and Wiring 3 03-20-2011 11:59 AM
Fusebox neutral bar grounded? Correct? Sh3ppard Electrical and Wiring 4 02-20-2011 07:58 AM
Newbie to put in ceiling fan! - wiring not grounded? operaflute Electrical and Wiring 6 03-18-2007 10:50 PM
Outlets Grounded??? bobo60 Electrical and Wiring 4 03-30-2006 02:14 PM