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#99313 - 04/21/05 01:37 PM lighting load
clearyjr Offline
Junior Member

Registered: 03/05/05
Posts: 3
Loc: new windsor, NY USA
can any one direct me to the artical that covers the total watts per lighting circuit.

2014 / 2011 NEC & Related Books and Study Guides
#99314 - 04/21/05 05:46 PM Re: lighting load
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Lighting is considered a continuous load.
210.19(A) and 210.20(A) limit continuous loads to 80% circuit capacity, so...

A 120-volt, 20-amp lighting circuit is limited to 1920 watts.
A 277-volt, 20-amp lighting circuit is limited to 4432 watts.
If you are using fluorescent or HID lighting don't forget to add ballast load.

#99315 - 04/21/05 07:55 PM Re: lighting load
clearyjr Offline
Junior Member

Registered: 03/05/05
Posts: 3
Loc: new windsor, NY USA
Thanks Redsy!
I tought there was a specific wattage ie(1380watts). My delema is that an architech has specified a single dimmer for two chandeliers with 900 watts each. So before I tell him his design is wrong and we need a dimming module or two seperate dimmers I want to cover my bases.


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