ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by gfretwell - 03/28/24 12:43 AM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
1 members (Scott35), 274 guests, and 14 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#109973 01/05/06 11:34 PM
Joined: Oct 2000
Posts: 3,682
Likes: 3
Admin Offline OP
Administrator
Member
Quote
While there might be some debate as to using SO for a water heater, I think we can all agree that using a light-duty extension cord to power the emergency lights is, well, a little too resourceful!

- renosteinke
[Linked Image]

[Linked Image]

Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

#109974 01/06/06 08:11 AM
Joined: Jan 2003
Posts: 4,391
I
Moderator
SO for a water heater a violation in my opinion of 400.8(1)

Quote
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

Cord and Plug connected EBUs allowed within limits.

Part of 700.12(F)
Quote
Flexible cord-and-plug connection shall be permitted, provided that the cord does not exceed 900 mm (3 ft) in length.

The cord looks longer than 3'


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#109975 01/06/06 10:04 AM
Joined: Dec 2000
Posts: 4,294
Member
No Code book this morn, but to add to Bob's post, the emergency unit can't be cord connected if it is a REQUIRED emergency light for means of egress.
If it's just for your convenience, you can connect them with 3' cords until the cows come home.

#109976 01/07/06 05:23 AM
Joined: Jul 2002
Posts: 8,443
Likes: 3
Member
Bob and Scott,
Coming from a place like I do, we are required to wire any sort of Emergency lighting into a permanent supply.
That means hard wired, with no cords.
The wires would enter through the back of the fitting.
It also prevents someone from in advertantly disconnecting your Em lighting system.

#109977 01/07/06 05:28 AM
Joined: Jul 2002
Posts: 8,443
Likes: 3
Member
Oh and by the way guys, is it a requirement to have a disconnect "within sight" while working on that Cylinder?.
Over here you must have an adjacent isolator at the Hot water cylinder.
BTW, that cord used on that cylinder looks far too DIY for my liking.

#109978 01/07/06 06:01 AM
Joined: Jan 2003
Posts: 4,391
I
Moderator
Quote
the emergency unit can't be cord connected if it is a REQUIRED emergency light for means of egress.

Not that I have ever cord and plug connected an emergency light but it is allowed by the NEC to do that with even required emergency lights. The article I quoted is 700 which covers the required emergency lighting.

That aside I would have no trouble believing another code prohibits it. It seems like a poor practice.

Here in MA they have deleted the sentence from 700.12(F) that allows cord and plug connection. [Linked Image]

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#109979 01/07/06 07:08 PM
Joined: Nov 2005
Posts: 141
C
Member
At least the SO isn't embedded in drywall mud like it was in my house. BTW I found a whole bunch more of that wiring "method" behind a couple of more fixtures in the basement.

I'm now in the process of removing ALL the new drywall that these twits put up so I can rewire the whole basement.


Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5