jcross
Member
- Location
- Piney Flats, TN
One of our engineers called me this morning about an upcoming substation retrofit project as they were in the process of speccing the layout of the new sub. Substation consists of two 13,800V to 2300V transformers(fed from two different powerhouses), mains, associated breakers and loadbreaks with a tie. This system presently has a 500 HP "fire pump" fed from it along with some other pump loads. His question to me was what does, #3 mean as it pretains to this article.
695.4(B)(2) Disconnecting Means. The disconnecting means shall comply with all of the following:
(1) Be identified as suitable for use as service equipment
(2) Be lockable in the closed position
(3) Not be located within equipment that feeds loads other than the fire pump
(4) Be located sufficiently remote from other building or other fire pump source disconnecting means such that inadvertent contemporaneous operation would be unlikely
Does this mean we would need to add a busway or cable system to an auxiallairy loadbreak for this pump? Our facility would fall under 695.3(A)(2) having an on-site generating facility and the transformers comply with 695.5. Has anyone dealt with this situation or one similar being this was a change from the 02/05 Code??
695.4(B)(2) Disconnecting Means. The disconnecting means shall comply with all of the following:
(1) Be identified as suitable for use as service equipment
(2) Be lockable in the closed position
(3) Not be located within equipment that feeds loads other than the fire pump
(4) Be located sufficiently remote from other building or other fire pump source disconnecting means such that inadvertent contemporaneous operation would be unlikely
Does this mean we would need to add a busway or cable system to an auxiallairy loadbreak for this pump? Our facility would fall under 695.3(A)(2) having an on-site generating facility and the transformers comply with 695.5. Has anyone dealt with this situation or one similar being this was a change from the 02/05 Code??