back to back bonding

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dingokangaroo

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saint petersburg/clearwater
ok . I presently do not have my code book avaliable. somewhere in Art 250. is the answer........bonding jumper at first means of disconnect. OK. here is the question.hope you can understand it. CONDO. 48 unit. from the meter base to the disconnect. DISCONNECT IS BONDED . ( this is the ground floor ) from the disconnect to the load center.. 200 amp no breaker... landing on main lugs. BIG Question....so the smart alec in my living room can come in and look....Can you bond this can also????? I say "NO". but cannot find a way to explain this to him. This is my forman we are talking about. He says prove it so I am trying to just dont know where it is at. If I'm wrong then OK but I do not belive the panel should be bonded back to back like this and he states that "it will not hurt a thing."...some one give me an article or some way to prove to him it is WRONG!!!!!!
 
No you can not bond again.

250.24(A)(5) directly prohibits bonding a second time.

You might even say 250.142(B) also prohibits it.
 
250.24
(5) Load-Side Grounding Connections. A grounding connection shall not be made to any grounded conductor on the load side of the service disconnecting means except as otherwise permitted in this article.
FPN: See 250.30(A) for separately derived systems, 250.32 for connections at separate buildings or structures, and 250.142 for use of the grounded circuit conductor for grounding equipment.

Edited to add
Sorry Bob I must have been looking while you were posting
 
iwire said:
No you can not bond again.

250.24(A)(5) directly prohibits bonding a second time.

You might even say 250.142(B) also prohibits it.
Click to expand...
thank you IWIRE. you did understand that this is from meter base to disconnect to 1st floor panel??? he states it is because HO does not have access to disconnect. I say it falls under the exception involving maintanance personnel.
 
jwelectric said:
250.24
(5) Load-Side Grounding Connections. A grounding connection shall not be made to any grounded conductor on the load side of the service disconnecting means except as otherwise permitted in this article.
FPN: See 250.30(A) for separately derived systems, 250.32 for connections at separate buildings or structures, and 250.142 for use of the grounded circuit conductor for grounding equipment.

Edited to add
Sorry Bob I must have been looking while you were posting
Click to expand...
read post #4 and see what you think
 
The bonding requirements stay the same regardless of occupant access.

The service disconnect is the first disconnecting means from the service point.

The load center in the unit is not a service panel.
 
dingokangaroo said:
...some one give me an article or some way to prove to him it is WRONG!!!!!!
Click to expand...
I have a MS Powerpoint presentation (*.*ppt) that describes the problem of parallel ground paths in detail ~ but not overly technical, has LOTS of graphics, easy to understand .
It was sent to me by another forum member.


I will ask him if it's ok to send to you.
 
celtic said:
I have a MS Powerpoint presentation (*.*ppt) that describes the problem of parallel ground paths in detail ~ but not overly technical, has LOTS of graphics, easy to understand .
It was sent to me by another forum member.


I will ask him if it's ok to send to you.
Click to expand...
that would be perfect as I just cannot seem to explain to him in the right way the reasons behind this. I guess I'm wording it wrong to him or something. I am not a classroom teacher after all. LOL
 
dingokangaroo said:
that would be perfect as I just cannot seem to explain to him in the right way the reasons behind this. I guess I'm wording it wrong to him or something. I am not a classroom teacher after all. LOL
Click to expand...
I'm just slightly smarter than your average brick...if I can understand it, anyone can

banana.gif
 
Just recieved a PM from the person who sent me the presentation....it's fine with him to send to anyone who asks for.

Some have PMed with their email address - I will send the presentation out shortly.

If ANYONE else would like a copy of it send me a PM with your email address in it.

The presentation is 738kb
FYI:
The presentation is a Microsoft Power Point file. If you do not have Power Point (like me), you can download a Power Point viewer from Microsoft....or I can send the viewer under a seperate email
The Power Point viewer is 2,837KB

Did I mention both are free ~ just for asking :D
 
Thanks e-mail is xxxxxxxxxxx


Edit email address removed, use PM feature to exchange email addresses
 
Last edited by a moderator:
guschash said:
Thanks e-mail is xxxxxxxxxxx


Edit email address removed, use PM feature to exchange email addresses
Click to expand...

celtic said:
If ANYONE else would like a copy of it send me a PM with your email address in it.


Did I mention both are free ~ just for asking :D
Click to expand...

Offer still open
 
celtic said:
I have a MS Powerpoint presentation (*.*ppt) that describes the problem of parallel ground paths in detail ~ but not overly technical, has LOTS of graphics, easy to understand .
It was sent to me by another forum member.


I will ask him if it's ok to send to you.
Click to expand...

I would love a copy of it........
 
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