Add ground bar in MSP

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SAP

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I had a Inspecter call me on adding a ground bar in the past to a MSP. I have to do it again there is no room in the existing MSP ground bar, is adding a ground bar that is machine screwed to the body of the MSP a code violation thanks
 
Seems a real stretch to "altering listed equipment" at best. I would not doubt there is a means provided to do so,
 
augie47 said:
Seems a real stretch to "altering listed equipment" at best. I would not doubt there is a means provided to do so,
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If there is a field modification part (extra ground bar) sold by the manufacturer of the panel, I would say no problem at all.
The AHJ question is more likely to come up when a "foreign" ground bar is added to a panel.
 
To add to what Gus said, in my opinion any one of the methods in 250.8(A) is accptable for adding a ground bar.

250.8 Connection of Grounding and Bonding Equipment.

(A) Permitted Methods. Equipment grounding conductors,
grounding electrode conductors, and bonding jumpers
shall be connected by one or more of the following means:

(1) Listed pressure connectors

(2) Terminal bars

(3) Pressure connectors listed as grounding and bonding
equipment

(4) Exothermic welding process

(5) Machine screw-type fasteners that engage not less than
two threads or are secured with a nut

(6) Thread-forming machine screws that engage not less
than two threads in the enclosure

(7) Connections that are part of a listed assembly

(8) Other listed means
Click to expand...
 
GoldDigger said:
If there is a field modification part (extra ground bar) sold by the manufacturer of the panel, I would say no problem at all.
The AHJ question is more likely to come up when a "foreign" ground bar is added to a panel.
Click to expand...

Are you suggesting an AHJ should fail a "foreign" ground bar added to a panel?
 
iwire said:
Are you suggesting an AHJ should fail a "foreign" ground bar added to a panel?
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I am just saying that he might feel that way about a part that is not both listed and named as a field modification for the panel in question.
I am not judging that action.
 
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