Fiberglass boat hull/deck repair with new lighting and wiring?

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Richard Franklin

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Hello, I have a customer that wants to replace the existing lighting and wiring in a fiberglass boat hull/deck repair temporary building. The building is a quanson hut style structure with canvas sides, galvanized metal tube frame, 20 feet wide, 50 feet length and 20 feet height. When the boat is temporarly positioned in the building, there would be about 4 feet clearance from the upper ceiling framework. The current wiring method is 2-tube strip fixtures mounted horizontally along the building lenth, with portable power cords thru-out fed from wall mounted GFI receptacles and a standard exhaust fan which is end mounted near the floor.

I'm believe that this temporary building used for fiberglass boat repairs would fall under the NEC Hazardous/Classified wiring chapters for the code recognized wiring method. Does anyone have any input in the required wiring of this type facility per the NEC? Thanks... Rick
 
Update on lighting/wiring in a fiberglass boat repair facility.

Update on lighting/wiring in a fiberglass boat repair facility.

Hello, I had the chance to talk to the local Electrical Inspector and he confirmed what I suspected. The fiberglass repair (even temporary) facility is listed as a NEC Chapter 5 Classified Hazardous location (Class 1-Div. 2). The Inspector did advise to make a list of all the types of chemicals used and check their MSDS to verify the flash point of each product. The exhaust fan for the facility is critical to the proper exchange of air within and to disperse the particle atmosphere. Lighting would defintly be within the classified zone, receptacles could possiblly be mounted outside to meet code requirements.

So...in case you need to provide lighting/wiring in a facility when fiberglass is repaired, here is the interpretation per the NEC. Thanks, Rick.
 
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