ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
sparky 5
Recent Posts
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 04/30/17 02:30 PM
201 volt equipment?
by bigpapa. 04/29/17 12:15 AM
Schneider LC1D09
by jraef. 04/28/17 11:05 PM
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
235,037 Are you busy
169,878 Re: Forum
163,068 Need opinion
Who's Online Now
0 registered members (), 41 guests, and 7 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#111976 - 01/09/01 11:44 PM Switched Neutral  
Admin  Offline

Administrator
Member
Joined: Oct 2000
Posts: 3,439
NY, USA
<p align="center"><img border="0" src="https://www.electrical-contractor.net/Violations/Submissions/SwitchedNeutral.jpg" width="403" height="259">
Submitted by sparky66wv (V. Kelly)
<p align="left">"This photo is of a switched neutral with the hot continuous through the box and unbroken and unspliced ... sort-of clever if you
ignore the switched neural part..."


Tools for Electricians:

#111977 - 01/10/01 11:42 AM Re: Switched Neutral  
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
Sorry Guys... a Polaroid Fun Flash just doesn't have the macro capability I need for close-ups. However, I think one can just make out the photo and see that the "romex" is one continuous piece, with the white wire broken for the switch.

Has anyone run into this before? (Not the switched neutral part, but the "continuous" part.) This is the third or fourth that I've seen in this area.


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

#111978 - 01/10/01 01:06 PM Re: Switched Neutral  
sparky66wv  Offline
Member
Joined: Nov 2000
Posts: 2,236
West Virginia
I also wanted to mention that a reasonably new Leviton brand 15A switch (complete with a ground screw and phillips type terminal screws) was removed from this before the photo was taken. Must've been changed within the last five years, my estimate.


-Virgil
Residential/Commercial Inspector
5 Star Inspections
Member IAEI

#111979 - 01/10/01 08:09 PM Re: Switched Neutral  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Sparky,

I've seen it once or twice myself. - I tried to clear up the photo a little, but that was the best I could do. [Linked Image]


#111980 - 01/19/01 07:38 PM Re: Switched Neutral  
spkjpr  Offline
Member
Joined: Dec 2000
Posts: 218
Sedalia,MO, USA
I have followed several older electricians here in MO who do the same style, although they broke the hot side, they split the Romex and place the switch in the line and leave the nuetral looped in the box. I spent 1/2 of a day trying to clean up a mess like that one day.


#111981 - 03/03/01 04:04 AM Re: Switched Neutral  
tajoch  Offline
Member
Joined: Feb 2001
Posts: 54
Quinlan texas, usa
I haven't seen that one done in romex, But I have seen some stranded thhn, being used in the same manner.
Also on the switched neutral, Plant I am working at now, for some (roughly 1/3) of the motor controllers, they use the overload circuit to break the neutral and not the hot.... I seem to be the only one who finds this to be scary........


#111982 - 03/03/01 10:40 AM Re: Switched Neutral  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
tajoch,
Almost all magnetic starters have the overlaod realy break the grounded conductor of the control power circuit to open the contactor. This is the industry standard. Starters that have the overload relay in the hot of the control circuit are special order. Why do see this as scary?
Don(resqcapt19)


Don(resqcapt19)

#111983 - 03/04/01 10:20 AM Re: Switched Neutral  
electure  Offline


Member
Joined: Dec 2000
Posts: 4,259
Fullerton, CA USA
These are not necessarily grounded conductors. In the case of a 208, 240, or 480 volt coil this conductor is ungrounded. Also, there's an exception in NEC 250-21 (3), but these are fairly unlikely circumstances (d) If you want to change it, it can be accomplished with jumpers, and a material outlay of less than a dollar.
A potential hazard with the O/L contact switching the grounded wire is that if the wire from the contact to the coil (sometimes just a jumper, but often extends to other controls) becomes grounded, the circuit will not respond to the open contact. This can allow other devices on the same controls to run, and can destroy machinery and people.
(no more edits, sorry guys)
[This message has been edited by electure (edited 03-04-2001).]

[This message has been edited by electure (edited 03-04-2001).]


#111984 - 03/23/01 09:30 PM Re: Switched Neutral  
DHFansler  Offline
Junior Member
Joined: Mar 2001
Posts: 3
Milan, OH USA
I see this often in OH... in homes 100+ years old and K/T (knob and tube). the old timers thought switched was switched. I thought they were all dead. I guess old bad habits never die.



Member Spotlight
richard
richard
L.I. New York
Posts: 94
Joined: August 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.016s Queries: 14 (0.003s) Memory: 0.8019 MB (Peak: 0.9697 MB) Zlib enabled. Server Time: 2017-04-30 20:31:00 UTC