590.6 Ground-Fault Protection for Personnel.
Ground-fault protection for personnel for all temporary wiring installations shall be provided to comply with 590.6(A) and (B). This section shall apply only to temporary wiring installations used to supply temporary power to equipment used by personnel during construction, remodeling, maintenance, repair, or demolition of buildings, structures, equipment, or similar activities. This section shall apply to power derived from an electric utility company or from an on-site-generated power source.
400.8 Uses Not Permitted.
Unless specifically permitted in 400.7, flexible cords and cables shall not be used for the following:
(1) As a substitute for the fixed wiring of a structure
(2) Where run through holes in walls, structural ceilings, suspended ceilings, dropped ceilings, or floors
(3) Where run through doorways, windows, or similar openings
(4) Where attached to building surfaces
I do not believe that 400 applys. We are not using the cord for a wiring method (Chapter 3).
My cord for my water heater is not long enough to plug into the receptical installed directly above it on a joist. Are you saying that I can not install a 4' cord to make this installation work?
2009 IFC:
605.5 Extension cords. Extension cords and flexible cords shall not be a substitute for permanent wiring. Extension cords and flexible cords shall not be affixed to structures, extended through walls, ceilings or floors, or under doors or floor coverings, nor shall such cords be subject to environmental damage or physical impact. Extension cords shall be used only with portable appliances.
Is it really being used for "permanent" wiring?
Extension cords shall be used only with portable appliances.
Permanent wiring or connection?
Rarely do I see the cords used for appliances. So where you you allow their use?
Mike, isn't your WH an appliance?
I think utilization equipment fits it better.
2009 IFC:
605.5 Extension cords. Extension cords and flexible cords shall not be a substitute for permanent wiring. Extension cords and flexible cords shall not be affixed to structures, extended through walls, ceilings or floors, or under doors or floor coverings, nor shall such cords be subject to environmental damage or physical impact. Extension cords shall be used only with portable appliances.
Only 'IF' you let me use "and so forth". I think utilization equipment fits it better.
Are not WHs addressed in 422?
Just to kick this around a bit more.
Say I wire a 100' x 100' commercial open office space, the plans call for me to install full lighting, EBUs and Exit signs, but they also show all the receptacles at one location.
At that one location I install 20 duplexes each supplied by a 20 amp circuit. The inspector asks how the power is getting to all 20 desks, I tell him the owner is going to run one cord to each desk.
Is this an NEC violation or not?
It's not a violation until he actually does it, if it is a violation at all (and that may well be a violation).Just to kick this around a bit more.
Say I wire a 100' x 100' commercial open office space, the plans call for me to install full lighting, EBUs and Exit signs, but they also show all the receptacles at one location.
At that one location I install 20 duplexes each supplied by a 20 amp circuit. The inspector asks how the power is getting to all 20 desks, I tell him the owner is going to run one cord to each desk.
Is this an NEC violation or not?
"Dunno. I don't do desks."The inspector asks how the power is getting to all 20 desks, ...
Mine is a high eff. gas. Does 430 apply? I'll have to look.
400.7 Uses Permitted.
(A) Uses. Flexible cords and cables shall be used only for
the following:
(3) Connection of portable luminaires, portable and mobile
signs, or appliances
(6) Connection of utilization equipment to facilitate frequent
interchange
(8) Appliances where the fastening means and mechanical
connections are specifically designed to permit
ready removal for maintenance and repair, and the
appliance is intended or identified for flexible cord
connection.
(B) Attachment Plugs. Where used as permitted in
400.7(A)(3), (A)(6), and (A)(8), each flexible cord shall be
equipped with an attachment plug and shall be energized
from a receptacle outlet.
? Unit is to connect to a 120VAC electrical supply outlet
(extension cord is not allowed).
If a flexible line cord and plug is permitted by local code, then provide a three wire grounding type receptacle within reach of the line cord provided on the control box.