Grounding electrodes in Metallic Conduit

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orlikd

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I know that grounding electrodes between bus bars in a building must be run in either PVC conduit, or bonded to the metallic conduit, when such a pathway is required. Can anyone point me to the section in the NEC that discusses this requirement?
 
Based on 250.92(A)(3): Does the metallic raceway include all lengths? In other words, can an insulated grounding electrode conductor travel through a 16" metallic sleeve in a floor penetration (as described in 250.86, exception #2) without requiring the cable to be bonded to the sleeve?
 
orlikd said:
Based on 250.92(A)(3): Does the metallic raceway include all lengths? In other words, can an insulated grounding electrode conductor travel through a 16" metallic sleeve in a floor penetration (as described in 250.86, exception #2) without requiring the cable to be bonded to the sleeve?
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No, regardless of length the sleeve would still need to be bonded at both ends.

If you were running this GEC as an open conductor in metal purloins you would not want to use metal straps for support if these straps made an enclosed ring around the conductor.

We either use PVC straps, or a nylon screw with a spacer for mineralac or strut straps

Roger
 
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