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#85069 - 05/26/03 10:38 AM height above gas pumps considered hazardous location?  
jimmyinanniston  Offline
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

#85070 - 05/26/03 02:11 PM Re: height above gas pumps considered hazardous location?  
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


#85071 - 06/05/03 09:19 PM Re: height above gas pumps considered hazardous location?  
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!


#85072 - 06/06/03 10:59 PM Re: height above gas pumps considered hazardous location?  
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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