250.6 vs. 250.58

[bphgravity]

Are these two Article requirements in conflict?

250.6(A)The grounding of electrical systems, circuit conductors, surge arrestors, and conductive non-current-carrying materials and equipment shall be installed and arranged in a manner that will prevent objectionable current over the grounding conductors or grounding path.

250.58 Where an ac system is connected to a grounding electrode in or at a building as specified in 250.24 and 250.32, the same electrode shall be used to ground conductor enclosures and equipment in or on that building. Where separate services supply a building and are required to be connected to a grounding electrode, the same grounding electrode shall be used.

 

[roger]

Re: 250.6 vs. 250.58

Bryan, how would using one GE for all grounding, no matter how many services, create an objectionable current path? Or am I missing your question?

Roger

 

[dereckbc]

Re: 250.6 vs. 250.58

Bryan I do not see any conflict. If you use a single point method or radial technique, it is impossible for objectionable current to flow. If your were to use different GE's for different systems you would put personnel and equipment in danger.