[Novalug] OT: Electrical Wiring Q

Wayne Dernoncourt wayned@panix.com
Mon Aug 29 17:40:35 EDT 2011


I was guessing the fourth wire is power to some other fixture or outlet.

This clown speaks for himself

On Aug 29, 2011, at 5:25 PM, "Nino R. Pereira" <ninorpereira@gmail.com> wrote:

> Now, you don't say explicitly but we assumed that the original light has 
> a white and
> a black wire that connects at the switch straight through to the house 
> wiring.
> The third wire is then green, and ground. So, what's the 4-th wire for?
> 
> Normally, white is power, black is neutral, green is ground. What's the 
> 4-th?
> 
> Also, check that the total power from the two light passing through the 
> switch
> is below its rating. Both lights are fluorescent bulbs, right? or at 
> most 100W
> incandescents, and not 500 W halogens? And it's not a dimmer switch? those
> may not be able to handle the increased current.
> 
> HTH,
> 
> Nino
> 
> 
> 
> 
> On 08/29/2011 09:50 AM, Daniel Copeland wrote:
>> Wire the new light in parallel with the existing lights, matching 
>> black to black and white to white.  You may be able to stack them into 
>> the same terminal on the switch, or make an extension and use wire 
>> nuts to tie them into the same terminals.
>> 
>> On Mon, Aug 29, 2011 at 9:29 AM, greg pryzby <greg@pryzby.org 
>> <mailto:greg@pryzby.org>> wrote:
>> 
>>    Looking for electrical wiring help.
>> 
>>    I have 3 light switches (2 have 3-wires and 1 has 4-wires). I put a
>>    new light in near the 4-wire switch.
>> 
>>    I would like to tie the new light (2-wires + ground) into the wiring
>>    at the 4-wire switch. I can't get it to work/cycle w/ the lights.
>>    Meaning when the existing lights are on, the new light is out. When
>>    the new light is on, the existing lights are out. Playing with the 3
>>    switches I can get the new and existing lights all out, but nothing
>>    gets them all on.
>> 
>>    ANY constructive help (besides hire an electrician) are welcome. I
>>    imagine the internet can save me the electrician fee and teach me
>>    about wiring.
>> 
>>    --
>>    greg pryzby                              greg at pryzby dot org
>>    http://www.linkedin.com/in/gpryzby
>> 
>>    WEB: http://www.RestonArtisTree.com/
>>    TWTR: gpryzby
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>> 
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