The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Forum Software Upgrade coming soon...
by Webmaster
01/18/17 12:03 AM
Re: Fabricating Guards out of Lexan?
by frank
01/17/17 04:11 PM
Would ELV branch circuits be a good idea?
by gfretwell
01/17/17 01:26 PM
Why cables look like they do
by Texas_Ranger
01/17/17 12:33 PM
100% breakers?
by Texas_Ranger
01/16/17 06:13 AM
New in the Gallery:
Desk-mounted "power-board"
Top Posters (30 Days)
Webmaster 20
HotLine1 19
gfretwell 13
ghost307 12
Trumpy 12
Who's Online
1 registered (Webmaster), 0 Guests and 73 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#23736 - 03/26/03 08:14 AM Gas pump area
SJT Offline

Registered: 07/24/02
Posts: 242
If a lighting fixture is within the 20' range of a gasoline despencing area, mounted on a Bldg., as long as it's above 18" from grade level, am I OK to use the standard wiring methods? I was also wondering about an extention cord used in the area of Gas Tanks. Are there special cords for that use. If someone drills a hole through a building outside the range thats hazardous, but the extention cord is in the zone, what does a sparky with gas station experience think of that? The fixure would be surface mounted and fed from the back. Thanks

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#23737 - 03/26/03 12:10 PM Re: Gas pump area
walrus Offline

Registered: 07/25/02
Posts: 671
Loc: Bangor Me. USA
I use extension cords all the time within the class 1 zone. Maybe I'm wrong for using such but in 25 years I've never had a problem. I've also used listed equipment(portable pumps) with SO cord on them.

See 514.7 for wiring and equipment above Class 1 locations. It refers to 511.7, all fixed wiring above shall be in Metal raceways, etc. it goes on and lists all kinds of different conduits but no NM-b, interesting

#23738 - 03/26/03 10:57 PM Re: Gas pump area
Trumpy Offline


Registered: 07/05/02
Posts: 8552
Loc: SI,New Zealand
Just a cautionary note, here mate,
make sure that all of your connections are safe and are well tightened.
Petrol vapours are funny things, do not leave anything to chance!, it wouldn't be the first Service-Station, blown to bits, by faulty wiring connections.
Let's face it, these days if you're not young, you're old - Red Green grin

#23739 - 03/27/03 04:10 PM Re: Gas pump area
John Steinke Offline

Registered: 04/03/01
Posts: 509
Loc: Reno,Nv., USA
I thought that the location extended twelve feet, not eighteen inches, above grade!
Of all the "haz-loc" fluids, gasoline has the widest range of flamability, due to the fact that it is a "soup" of everything from lighter fluid to wax. Even the use of cordless tools is questionable.
An extension cord, passing through a zone without connections, should be OK.
Going to an "extreme," as is typically done in refineries, you would use air-powered tools and non-sparking hand tools. That might be why the refining industry has the best safety record around.


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals