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CEC 2-308 interpretation

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cec 2-308
9K views 7 replies 5 participants last post by  emtnut 
Triden's comment makes sense.
 
Thanks for all inputs. I am looking for actual inspection results. In our case it is a an existing prefab e-house where we need to install 600V MCC's front to front, so the spacing considering draw out equipment is critical. The situation is that draw out equipment (starter buckets) become de-energized when extracted only 2-4 inches, but would take a full 1' to take it out of the mcc. I got feedback from a CSA inspector at manufacturing facility and he approves to consider only 2-4 inches to have the bucket de-energized. I am asking if this interpretation is ok or there might be another inspector that has a different interpretation. The conservative interpretation of full extraction doesn't allow installation of another MCC in the e-house, that is why I need to check if we can compromise on a more optimized interpretation.
Refer to the bottom image in the pic on post 4.

It's really self explanatory.
 
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