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height above gas pumps considered hazardous location? #85069
05/26/03 09:38 AM
05/26/03 09:38 AM
J
jimmyinanniston  Offline OP
Junior Member
Joined: May 2003
Posts: 8
ohatchee,alabama,usa
What is the height above gas pumps considered hazardous location?


jimmy w. brown
2017 / 2014 NEC & Related Books and Study Guides
Re: height above gas pumps considered hazardous location? #85070
05/26/03 01:11 PM
05/26/03 01:11 PM
R
russ m  Offline
Member
Joined: Feb 2003
Posts: 169
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

Re: height above gas pumps considered hazardous location? #85071
06/05/03 08:19 PM
06/05/03 08:19 PM
J
John Steinke  Offline
Member
Joined: Apr 2001
Posts: 518
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!

Re: height above gas pumps considered hazardous location? #85072
06/06/03 09:59 PM
06/06/03 09:59 PM
R
russ m  Offline
Member
Joined: Feb 2003
Posts: 169
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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