8-84: I finally have a slam dunk

[George Stolz]

Revise text to read as follows:
356.60 Grounding and Bonding. If used to connect equipment where flexibility is necessary to
minimize the transmission of vibration from equipment or to provide flexibility for equipment that requires movement
after installation, an equipment grounding conductor shall be installed.
Where required or installed, equipment grounding conductors shall be installed in accordance with 250.134(B).
Where required or installed, equipment bonding jumpers shall be installed in accordance with 250.102.

Substantiation: The proposal revises 356.60 to be harmonized with 348.60 and 350.60. 348.60 and 350.60 were
revised to define vibration for the 2011 NEC.

1.) Comment on Proposal No.: 8-84

2.) Recommendation: Accept the proposal in principle in part by harmonizing 356.60 with 352.60 instead:
352.60 Grounding. Where equipment grounding is required, a separate equipment grounding conductor shall be installed in the conduit.
Exception No. 1: As permitted in 250.134(B), Exception No. 2, for dc circuits and 250.134(B), Exception No. 1, for separately run equipment grounding conductors.
Exception No. 2: Where the grounded conductor is used to ground equipment as permitted in 250.142.

3.) Substantiation: Since LFNC is not a recognized equipment grounding conductor per 250.118, the wording should match other nonmetallic raceways.