[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 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.
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
> Project Wombat - Project-Wombat
> list at project-wombat.org
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