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#85069 - 05/26/03 07:38 AM height above gas pumps considered hazardous location?
jimmyinanniston Offline
Junior Member
Registered: 05/25/03
Posts: 8
Loc: ohatchee,alabama,usa
What is the height above gas pumps considered hazardous location?
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jimmy w. brown
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#85070 - 05/26/03 11:11 AM Re: height above gas pumps considered hazardous location?
russ m Offline
Member
Registered: 02/22/03
Posts: 169
Loc: Burbank,IL,USA
If it's a typical dispenser that is on the ground, the classified area stops at the top of the pump housing.

Article 514
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#85071 - 06/05/03 06:19 PM Re: height above gas pumps considered hazardous location?
John Steinke Offline
Member
Registered: 04/03/01
Posts: 518
Loc: Reno,Nv., USA
I disagree. The "zone" continues up to a point 12 feet from the ground/grade. That's why the lights are always at least a little higher than that- so they don't have to use x-proof fixtures. Of course, it's also nice if a 13'6" semi will also miss them- but changing bulbs is a pain!
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#85072 - 06/06/03 07:59 PM Re: height above gas pumps considered hazardous location?
russ m Offline
Member
Registered: 02/22/03
Posts: 169
Loc: Burbank,IL,USA
John:

I think figure 514.3 in the 2002 NEC clearly shows the classified area stops at the top of the dispenser.

You have a good point about the light fixtures, 514.7 says you have to comply with 511.7.
While you have to comply with this article I think the light fixtures are above the classified area and not in it.

Russ
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