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Subject - OCPD accessibility
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Ryan_J
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240.24 adds new text to tell us that (unless exceptions are met), [quote[ overcurrent devices shall be readily accessible and shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is not more than 6'7" above the floor or working platform unless one of the following applies....(same exceptions as 2002)[/quote]
Alright, so the 2002 NEC told us in 404.8 that circuit breakers used as switches must be no higher than 6'7". The 2005 tells us that any overcurrent device with a switch or breaker must be no higher than 6'7". Thats great...but what about the disconnect for, say, an A/C unit, if it is non-fused? new 240.24 tells us 6'7" if its fused, but 440.14 for disconnect just says "readily accesible". Can we finally infer that the limit of readily accessilbe is actually 6'7"? What are your thoughts on this???
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SteveMc
| Ryan, How would this article apply to a disconnect for an air handler that is mounted near the ceiling of a department store 20' AFF. Would the disconnect have to be mounted on the wall less than 6'7" AFF? What about accessibility? Since most air handler come with factory installed disconnects, would we be required to install another to meet the 6'7" rule?
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JimmyDee
| "readily accesible" (Capable of being reached quickly for operation, renewal, or inspections without requiring those to whom ready access is requisite to climb over or remove obstacles or to resort to portable ladders, and so forth.) I would say you are correct but, SteveMc presents an interesting point. Jim
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Ryan_J
| Hi Steve. In the 2005, there is still the rule in 240.24(A)(4) that is in the 2002.
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