ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by gfretwell. 10/19/17 01:02 AM
Generator Cable Sizing
by brsele. 10/18/17 07:39 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,404 Are you busy
177,370 Re: Forum
168,973 Need opinion
Who's Online Now
0 registered members (), 14 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#117042 - 05/16/04 09:54 PM Homemade Dimmer Switch  
Admin  Offline

Joined: Oct 2000
Posts: 3,458
I found this in a friends house a three way lamp was plugged into it. It works and is wired right But this is probably a violation.

- Peter
[Linked Image]

[Linked Image]

Tools for Electricians:

#117043 - 05/17/04 01:06 PM Re: Homemade Dimmer Switch  
resqcapt19  Offline
Joined: Nov 2000
Posts: 2,148
404.14(E) Dimmer Switches. General-use dimmer switches shall be used only to control permanently installed incandescent luminaires (lighting fixtures) unless listed for the control of other loads and installed accordingly.


#117044 - 05/17/04 08:09 PM Re: Homemade Dimmer Switch  
n1ist  Offline
Joined: Feb 2002
Posts: 183
Malden MA
This probably has a plug on the other end of the zip cord. In that case, does NEC apply?

#117045 - 05/18/04 09:35 AM Re: Homemade Dimmer Switch  
ComputerWizKid  Offline
Joined: Sep 2003
Posts: 119
Connecticut, USA
Hi I'm Peter,
Yes it does have a plug on the other end.

Theres always enough room in the junction box.You just need a bigger hammer

#117046 - 05/18/04 02:58 PM Re: Homemade Dimmer Switch  
SvenNYC  Offline
Joined: Aug 2002
Posts: 1,691
New York City
I don't understand, why not get one of those plug-in table top dimmers where you plug it into the wall, plug the lamp into the through-tap and there's a cord with a dimmer switch at the end?

Alternatively, you can get a dimmer switch that attaches to the lamp's cord like a regular on-cord switch, except that instead of a rocker, it has a knob that you turn with your thumb.

Either of the above solutions would have been simpler, cheaper and safer than this kludge that Peter shows us. [Linked Image]

EDIT: Also, those boxes are not listed for that type of portable application. The metal ones have knockouts that can break off and the plastic boxes will shatter like a phonograph record if dropped on the floor, kicked or banged.

[This message has been edited by SvenNYC (edited 05-18-2004).]

#117047 - 05/18/04 06:18 PM Re: Homemade Dimmer Switch  
BigJohn  Offline
Joined: Mar 2004
Posts: 391
Boston, MA
I definitely agree with the issues concerning durability, and I don't like the idea of this thing getting knocked around by that piece of zip-cord with no gromets or strain-relief to speak of.

But on the plus side, at least they had sense enough not to use a grounding-type receptacle and what appears to be heavier-than-normal 16 gauge lamp cord...

It's pretty bad when I look at something like this and think: "Well, it could be worse...." [Linked Image]


#117048 - 05/22/04 08:18 PM Re: Homemade Dimmer Switch  
MattE  Offline
Joined: May 2004
Posts: 22
Ottawa, Ontario, Canada
that looks like a new ungrounded receptacle... why would they still make these? [Linked Image]

#117049 - 05/22/04 08:35 PM Re: Homemade Dimmer Switch  
sparked  Offline
Joined: Sep 2003
Posts: 114
Ungrounded receptacles are still made for situations where there is an existing ungrounded receptacle needing replacement. Instead of replacing the receptacle with a GFCI, you can use one of these. However... they are sold at "home centers" and the last time I looked, El Cheapo outlets from the big bin were about 40ยข, while these cost over $1.50. It's likely that the NEMA 5-15 outlets are used with nothing connected to the ground, instead of using these 1-15's
Edited because im in YIM mode and abbreviate everything

[This message has been edited by sparked (edited 05-22-2004).]

#117050 - 05/23/04 01:47 AM Re: Homemade Dimmer Switch  
MattE  Offline
Joined: May 2004
Posts: 22
Ottawa, Ontario, Canada
ah i c... makes sense to me [Linked Image]... i've just never seen these before in any hardware stores.

[This message has been edited by MattE (edited 05-23-2004).]

Member Spotlight
Bill Addiss
Bill Addiss
Posts: 3,878
Joined: October 2000
Show All Member Profiles 

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


Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.021s Queries: 14 (0.003s) Memory: 0.8012 MB (Peak: 0.9664 MB) Zlib enabled. Server Time: 2017-10-20 07:16:22 UTC