fmtjfw
Senior Member
- Location
- Fairmont, WV, USA
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 XXX. Thanks, Jim Williams
4 Comment:
250.167 Direct-Current Ground Fault Detection. [ROP 5?223]
(A) Ungrounded Systems. Ground fault detection systems shall be required for ungrounded systems.[ROP 5?223]
(B) Grounded Systems. Ground fault detection shall be permitted for grounded systems. [ROP 5?223]
(C) Marking. Direct-current systems shall be legibly marked to indicate the grounding type at the dc source or the first disconnecting means of the system. The marking shall be of sufficient durability to withstand the environment involved. [ROP 5?223]
5 Statement of Problem and Substantiation.
The NEC is a permissive Code things not forbidden are permitted. (B) is therefore unnecessary.
4 Comment:
250.167 Direct-Current Ground Fault Detection. [ROP 5?223]
(A) Ungrounded Systems. Ground fault detection systems shall be required for ungrounded systems.[ROP 5?223]
(B) Grounded Systems. Ground fault detection shall be permitted for grounded systems. [ROP 5?223]
(C) Marking. Direct-current systems shall be legibly marked to indicate the grounding type at the dc source or the first disconnecting means of the system. The marking shall be of sufficient durability to withstand the environment involved. [ROP 5?223]
5 Statement of Problem and Substantiation.
The NEC is a permissive Code things not forbidden are permitted. (B) is therefore unnecessary.
