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Ray, While the NEC does give the AHJ broad powers, most states (or counties or cities) limit that authority in some manner such as requiring 3rd party evaluation (listing) of equipment. That's why UL listing is so vital to the manufacturers. Most states also have a list of exceptions to the NEC that installers also need to know. There's more than one book that the AHJ can use as a basis to deny approval. Kent Osterberg Blue Mountain Solar, Inc. R Ray Walters wrote: I got into that one a few years ago with an inspector. He cited 110.2. "Approved" according to article 100 means: acceptable to the AHJ. So put article 100 into 110.2 and you get: "Conductors and Equipment required or permitted shall be acceptable only if 'acceptable to the AHJ' "Basically I call these 2 sections of the code read together as the 'AHJ = The Man' ruling. I guess there was some politics involved in NOT putting that together for all to see? R. Walters r...@solarray.com Solar Engineer On Jan 11, 2010, at 5:27 PM, Kent Osterberg wrote: |
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