Shop Lights in Houston - Craigslist

[Sonny]

Might be worth checking in to:

[tiredofspam]

277volts? not 220, or 120..

Is 3 phase 277v?

> Sonny

>

[Lew Hodgett]

-------------------------------------------------

480Y/277V,3PH, 4 Wire is a very common industrial distribution scheme.

3, 277V single phase legs are connected in a grounded neutral Y configuration to produce 480V, 3 Ph power (L1, L2, L3).

1 PH power (L1 or L2 or L3 to N (grounded neutral) produces 277V for single phase loads is available from the addition of the neutral conductor.

It's just that old square root of 3 thing.

BTW, 208Y/120 is another popular distribution scheme.

Lew

[Lew Hodgett]

good deal.

Lew

[Mike M]

>SonnyNot a good deal unless you happen to be sitting on a 120 to 277V transformer. And if they don't have electronic ballasts your paying the seller to dispose of them for him.

Mike M

[Joe]

What a deal. Now just to rewire the home shop to use 277 V. :)

[Sonny]

I'm not knowledgeable enough to have known this wasn't a reasonable deal for the average shop. Thanks.

Sonny

[Steve Barker]

> Sonny

regardless of ballast or voltage, the tubes for these are not going to be available soon. That's why they are being taken out of buildings everywhere.

[HeyBub]

I think they are Maryhoowanna grow-lights.

[J. Clarke]

>

Why would 4 foot T8 tubes not be available?

[tiredofspam]

That's wierd our gym in our school just replaced the vapor lights with T8.. I'm sure the school is 3phase.

Nice because they are > >> Might be worth checking in to:

[Mike M]

I'm assuming he thought they were T-12 fixtures which are being phased out. Lighting technology has been changing rapidly and it can be practical to replace T-8 3/L fixtures as well. I haven't worked since

2009 but there are a lot of programs making it attractive and give a fast payback. They were just getting started with LED back when I got hurt.

Mike M