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Wednesday, April 27, 2016
Question:
Re: CQD answer published Monday, March 28, 2016 -Grouping Service Disconnecting Means
Friday March 25 CQOTD is spot on, except: There is another requirement and that is grouping the disconnects. The main breaker in the interior panel is not grouped with the external disconnect. NEC 230.72
Tim Shea
A
Answer:
Hey Tom thanks for your comment. The grouping rule is for two to six disconnecting means that are permitted for each set of service entrance conductors as stated in 230.71(A). It is not required to group the disconnecting means for separate service entrance conductors such as was the case for the Two-Family Dwelling example in the question.