|
StreetLight #001 - Parking Lot Streetlight At A College
|
One of the HPS streetlights in a college parking lot (pic taken fall of last year)
Users on the LG site determined brand/manufacturer was probably ITT
Location:
Arapahoe Community College, Littleton Colorado
|
|
I know for a fact that the lighting *inside* the building is 277v .. but on the parking lot/streetlights... I have no idea, could be either LOL
I''m not sure if they made 600v parking lot lights though.
@LilCinnamon I looked at this one again a couple days ago .. yep I think you're right that its probably Xcel's since its wired to some others on the streets (overhead wires)
I guess the terminal block is bigger to provide a better insulation. The ballast itself must be a CWI, to provide electrical insulation of the secondary part. I have myself a CWA ballast for 347V, it'd be illegal on a new installation today!
I didn't know that 347v HID ballasts needed to be CWI though, I have a lot of older CWA ballasts that also have a tap for 347v. Now I wonder if 347v fluorescent ballasts are differently designed.