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Dear Sir: I am an electrical contractor in Va. working for a company that designs and manufactures booths for museums, exhibits and shows. There appears to be a conflict -- are they exempt from following the NEC and are they exempt from UL testing when lighting fixtures (fluorescent) are dismantled and only the tombstones are used mounted to a manufactured frame and the ballast is remotely installed?? Where is the protection for the fixture wires?? If they modify the fixture do they not void the UL warranty/rating and should then be made to aquire an independent testing agency to test and approve and give a '"label" similar to the UL "label"??

I would really appreciate a response --

Thanks, js