Track lighting

[ryan_618]

Have I been mis-interpreting this? I was just reading in my 99' NEC (don't have 02' here now) about track lighting, specifically 220-12(b). I just realized that this is under the article for feeders and services.

The scope of article 220 is: "This article provides requirements for computing branch-circuit, feeder, and service loads".

With that in mind, I have asked on plan reviews to accomodate 150 Volt-amps for every two feet of track on the branch circuit !!! Is this only for the feeder/service calculations? If so, is there an errata to it or was it changed in the 2002? I really hope I haven't been calling this incorrectly!

 

[dcl34769]

Re: Track lighting

i inturpret this article being for feeder calculations.

art.410.101b states that the connected load not exceed the mfg rating and that the branch circuit not exceed this rating.


hope this helps.

 

[curt swartz]

Re: Track lighting

Ryan

If you are using the 96, 99 or 02 NEC there is no limit to the length of track on a branch circuit. 220-12(b) requires a load of 150va for every 2' of track but this only applies to feeders and service calculations. In the 93 NEC 220-3(c)(5) referenced you to 410-102 which required 180va per 2' of track to be used for branch circuit calculations.

 

[curt swartz]

Re: Track lighting

Also if you look just above 220-12 it says B. Feeders and Services.

 

[ryan_618]

Re: Track lighting

Well....Looks like I blew it! Thanks gentlemen, for your replies. I will stop calling that on plan review. Its funny, I always referenced the code article on my review, but never did I get any rebuttal about it. Also, does anyone know why you have to consider the service/feeder calc's in this manner but not the branch circuit?