[PW] ?How is a 277 Volt Lighting System Wired in Series to Turn On a Large Group of Fluorescent Light Fixtures Wired in Series?

Kay Lancaster kay at hub.fern.com
Wed Sep 30 13:05:45 PDT 2015


Is this a group of fluorescent fixtures that are being 
refurbished for LED bulbs?  You do remove or wire out the 
ballasts when you do this.

Kay


On Wednesday 2015-09-30 12:29, Sam Shipley wrote:

>Date: Wed, 30 Sep 2015 12:29:51
>From: Sam Shipley <sams at dcpl.info>
>Reply-To: list at project-wombat.org
>To: "list at project-wombat.org" <list at project-wombat.org>
>Subject: [PW] ?How is a 277 Volt Lighting System Wired in Series to Turn On a
>    Large Group of Fluorescent Light Fixtures Wired in Series?
>
> I have a rather lengthy technical electronics question to submit for a patron.  Please see below:
>
>     "How is a 277 volt lighting system wired in series to turn on a large group of fluorescent light fixtures wired in series?  One switch turns on around 50 fixtures at once.   I want to understand this from the breaker to the last fixture.
>     When changing out the ballast in a fixture, there are some wires that are not needed, that the electrician has removed and capped.  This process is similar to a 120 volt system, but has more wires in the 277 volt system that (I think) remain hot.
>      I have tried to find the information by searching the internet, using the keywords Fulham Ballast Co. Inc.   I also search the "How Things Work" web site."
>
>
> Thanks for any help you can provide.
>
> Sam Shipley
> Reference Librarian
> Dodge City Public Library
> Dodge City, Kansas
> sams at dcpl.info<mailto:sams at dcpl.info>
> (620) 225-0248, x201
>
>
>
>
>
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