Thread: Old bulbs = Algae problems?
View Single Post
  #39  
Old 04-10-2003, 03:04 AM
Bob I's Avatar
Bob I Bob I is offline
Member
  
Join Date: Nov 2001
Location: Calgary, Alberta, Canada
Posts: 3,591
Bob I is on a distinguished road
Default
Quote:
FWIW I believe it's 120v,208v,240v,277v. I wonder how they come up with 208 and 277 though.
Those voltages are of no concern to the normal person. They are three phase voltages, and is the voltage between two of the phases. Arrived at by multiplying the supply voltage by the square root of three. IOW 480 times root three, or 600 times root three.
__________________
Bob
-----------------------------------------------------
To be loved you have to be nice to people every day - To be hated you don't have to do squat.

---------Homer Simpson--------
Reply With Quote