ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
by gfretwell. 03/24/18 02:10 AM
Recall Notice Kidde Smoke Alarms
by dougwells. 03/22/18 01:40 PM
Recall notice: Southwire wi-fi wall switches
by sparkyinak. 03/15/18 06:03 PM
Goodman Manufacturing Recalls Modular Blowers
by Admin. 03/13/18 10:40 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 11 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Surface wiring across driveway #194479
06/04/10 08:08 PM
06/04/10 08:08 PM
wewire2  Offline OP
Joined: Nov 2002
Posts: 244
I have a client that wants to park an RV on the other side
of a Storage facility driveway. He wants the 50 amp RV circuit to run surface across the driveway from the building with available power and he wants to use a cable ramp. Never been asked this one before and he wants the price right away. I'm wondering if a UL listed ramp is available to protect rigid conduit. RV's will be driving over it frequently.Anyone familiar with an approved ramp or have any suggestions besides going underground or overhead?

2017 / 2014 NEC & Related Books and Study Guides
Re: Surface wiring across driveway [Re: wewire2] #194482
06/04/10 08:28 PM
06/04/10 08:28 PM
Tesla  Offline
Joined: Jun 2004
Posts: 1,273
Sacramento, CA
IMC is better than RMC...

Such protection is pretty effective for temp power at construction sites.

In such usage our idea of a cable ramp is 2x6 lumber....

Grainger might have something suitable.

Re: Surface wiring across driveway [Re: Tesla] #194484
06/04/10 11:58 PM
06/04/10 11:58 PM
KJay  Offline
Joined: Nov 2007
Posts: 763
The company in the link below makes a protector ramp suitable for that purpose, but I don't think it would be required to be UL listed, since it is not an actual fitting or part of the RMC wiring method.
I wasn't able to locate anything in the White Book pertaining to protector ramps.


Re: Surface wiring across driveway [Re: Tesla] #194488
06/05/10 02:14 AM
06/05/10 02:14 AM
wewire2  Offline OP
Joined: Nov 2002
Posts: 244
Haha! Yeah I'm familiar with the 2x4 method. Heck I've seen
cords running across heavily traveled roads without
protection. Thanks for the responses. I think I'm going to
propose just installing an outlet and let him worry about protecting it across the road. Less liability to worry about.

Re: Surface wiring across driveway [Re: wewire2] #194494
06/05/10 10:58 AM
06/05/10 10:58 AM
HotLine1  Offline

Joined: Apr 2002
Posts: 6,936
Brick, NJ USA
Last I looked, Grainger had ramps made by Hubbell for cord protection, & suitable for traffic crossing. Hold your wallet....they were in the $400 range I think.

Re: Surface wiring across driveway [Re: HotLine1] #194500
06/05/10 06:42 PM
06/05/10 06:42 PM
wewire2  Offline OP
Joined: Nov 2002
Posts: 244
Looking at NEC 400.7 and 400.8 and wondering whether a
cord laid out for a weekend or two a month across the drive and protected by a ramp would sneak in under the provisions listed. An RV is portable right? Opinions?

Re: Surface wiring across driveway [Re: wewire2] #194515
06/06/10 01:37 PM
06/06/10 01:37 PM
renosteinke  Offline
Cat Servant
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I don't see a problem ... nor do I see a problem with any means used to help protect the cord.

Indeed, some time back I posted pics of such a cord thaqt was run through a garden hose. In that instance, the cord went across a parking lot for a 'sale' event.

The world generally has no problems with honest applications; it's when that RV sits in place for a decade and is rented out as an apartment that code officials start getting grumpy.


2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 28
Joined: February 2011
Show All Member Profiles 
Top Posters(30 Days)
Trumpy 5
Admin 4
Popular Topics(Views)
244,895 Are you busy
182,008 Re: Forum
172,041 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.034s Queries: 15 (0.005s) Memory: 0.9852 MB (Peak: 1.1428 MB) Zlib enabled. Server Time: 2018-03-25 01:43:00 UTC