COMMENT 4-312 690.47 (C)(2)

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fmtjfw

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I'm looking for constructive criticism on the following, and if you think it is merited, support in the form of comments from you on 4-312. Thanks, Jim Williams

4 Comment:

690.47 Grounding Electrode System.
(C) Systems with Alternating-Current and Direct-Current Grounding Requirements.
(2) Common Direct-Current and Alternating-Current Grounding Electrode.
A dc grounding electrode conductor of the size specified by 250.166 shall be run from the marked dc grounding electrode connection point to the ac grounding electrode. Where an ac grounding electrode is not accessible, the dc grounding electrode conductor shall be connected to the ac grounding electrode conductor in accordance with 250.64(C)(1), 250.64(C)(2), or using a connector listed for grounding and bonding. [ROP 4?312]

5 Statement of Problem and Substantiation.

The ?or? list 250.64(C)(1), 250.64(C)(2), or connector lacks parallelism for the third item.
 
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