ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
AreMetal Ladders Ever OK For Electrical Work?
by HotLine1. 01/22/18 07:31 PM
Photocell
by twh. 01/22/18 05:06 PM
VDE 0100 to introduce AFCIs
by sparky. 01/20/18 05:09 PM
MRI LED lights dimmer control replacement - wow!
by Potseal. 01/19/18 08:52 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 6 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Temporary Wiring #14387
09/21/02 08:19 PM
09/21/02 08:19 PM
M
master66  Offline OP
Member
Joined: Apr 2002
Posts: 257
Masontown, PA, USA
Question;

When installing temporary lights and 120V 20A temporary receptacles in a building for use during construction is the wire feeding either the lights or the receptacles required to be GFCI protected?

Here is the situation.

A temporary panel was set fed by a permanent feeder.

12-2 NMC is fed from the panel to some temporary receptacles. The first receptacle is a GFCI which is connected so as to protect the ones after it.

12-2 NMC is also fed from the temporary panel to a permanent lighting circuit with temporary pigtail sockets w/cages.

The way it was explained to me years ago, is the purpose of the GFCI protection is not only to protect personel from harm resulting from damaged extension cords and equipment but also damaged or "pinched" temporary wiring, such as the 12-2. This is also why temporary wiring must be in the form of a cable assembly and not single conductors as it was in the past.

What do you guys think?

Work Gear for Electricians and the Trades
Re: Temporary Wiring #14388
09/21/02 10:09 PM
09/21/02 10:09 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
I’m not sure if this adequately answers your question, but that situation seems like it could become a bit of a double-edged sword.

In some areas, rules for temporary wiring specifically state that, "NM cable shall not be used as a extension cord,” and some industrial-safety inspectors interpret that to apply to any wiring serving construction loads, even if it should later be intended to become permanent wiring. GFCI protection has another use—to protect against shock from contact with broken-bulb filaments, even though the lamps are "caged."

Re: Temporary Wiring #14389
09/22/02 01:05 AM
09/22/02 01:05 AM
S
Sean WB  Offline
Member
Joined: Sep 2002
Posts: 111
South TX
The listed/approved temporary lighting kits we use come in 100' lengths,and have 20 caged lamp bases. we use flying joints. We are not required to have them GFCI protected, but they must have overcurrent protection of course.The receptacles are GFCI protected.
homemade temporary lighting is a pain in the %$#, these temporary lightning rolls can be used again, because the code allows no junction boxes on them , so you can just cut them down :0
My 2 cents are free [Linked Image]

[This message has been edited by Sean WB (edited 09-22-2002).]


I did not get as think so badly as you shocked I did.
Re: Temporary Wiring #14390
09/22/02 09:32 AM
09/22/02 09:32 AM
M
master66  Offline OP
Member
Joined: Apr 2002
Posts: 257
Masontown, PA, USA
If it helps any... the NMC is for temporary use only and will be removed as the permanent wiring is put in place and energized.

I am also aware that even the permanent wiring cannot be used for power during construction unless it is GFCI protected.(not necessarily the wiring in this case but definately any 120V receptacles)

Being that I am no longer the boss, I cannot control how temporary wiring is installed or used. I do feel that even the wiring should be GFCI protected but am not sure.

Please keep the responses coming.

Re: Temporary Wiring #14391
09/22/02 09:44 PM
09/22/02 09:44 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 6,919
Brick, NJ USA
I think there is an OSHA regulation that requires GFI protection on the temporary wiring circuit (to protect the conductors) and that it's also to sense a problem with the neutral conductor.

Someone must know the specifics, and if my above thoughts are fact.

HotLine1
John


John

Featured:

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

 

Member Spotlight
mxslick
mxslick
Atomic City, ID USA
Posts: 803
Joined: October 2004
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
sparky 15
Potseal 15
Popular Topics(Views)
243,597 Are you busy
180,402 Re: Forum
170,868 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.019s Queries: 14 (0.004s) Memory: 0.9679 MB (Peak: 1.1052 MB) Zlib enabled. Server Time: 2018-01-23 09:39:41 UTC