ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals

Topic Options
Rate This Topic
#15870 - 10/31/02 03:05 PM Lot Lighting.
Sandro Offline
Member
Registered: 12/30/01
Posts: 444
Loc: Stoney Creek, ON, Canada
I'll be placing a bid for some parking lot lighting at the local Ford dealership, the requirement : 16 - 1000w MH mega floods.

My question.... calculations involved to properly size the lighting contactor?
Top
Work Gear for Electricians and the Trades
#15871 - 10/31/02 04:54 PM Re: Lot Lighting.
HotLine1 Offline


Member
Registered: 04/03/02
Posts: 6775
Loc: Brick, NJ USA
Sandro:
First, get the ballast info from the fixture mfg. starting and operating amps, at the voltage you have available. Then determine if there are any required circuitry layouts that you have to conform to. Number of heads on each pole, all heads on 1 pole on same circuit, partial or "nite lights", all on at once, or staggered (sequential) starting to conform to any energy codes or job specs.

Without knowing the specs, you can't lay it out.

If you need help, let me know. This is a busy weekend, so I may not be able to get back to you quick.
John
_________________________
John
Top

Member Spotlight
Member Since: 11/17/00
Posts: 2232
New in the Gallery:
SE cable question
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box


Who's Online
1 registered (cableguy619), 64 Guests and 7 Spiders online.
Key: Admin, Global Mod, Mod
 
New in the Gallery:
SE cable question
 
Top Posters (30 Days)
Admin 51
HotLine1 43
gfretwell 17
Trumpy 16
Ruben Rocha 13
 
Newest Members
clee512, Jdscott2005, FAIZAN, Regitest2, sureshazhagai

ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals