Re: Wood truss plant
I think we discussed this with one of your potential suppliers in
this thread.
Simple saw dust does not create a Class II (or III) location. There may be other fire hazards involved but it is not an Article 500 to 504 issue. See Section 500.1.
I said in the other thread:
The inspector?s recommendation is typical of the inexperienced. They over-classify, ?just to be safe.? Electrical Area Classification should never be done ?the first time? (and often even the second or third) except under the supervision of an experienced, qualified person
It appears to apply to the engineer as well. This is not a slight to him/her; I went through the process (often with the same results) in my earlier years.
You as an owner must comply with 500.3(B) - Proper Documentation. Since I believe you are in Florida this is also a FedOSHA Process Safety Management requirement. The NEC is not sufficient alone to classify any location except those covered by Articles 511 to 516. The engineer should be able to cite the specific Standard used to classify the location. In this case the appropriate Standard is NFPA 499.
[ March 16, 2005, 12:25 PM: Message edited by: rbalex ]