Track Lighting loads 220.43(B) EXP.

This weeks Code change is based on load calculations from article 220.   220.43(B) requires that a load of 150 va be included for each 2’ of track lighting.  This can add up to be a substantial load when not necessarily needed.  There is an exception to this section that will allow us to include the loads for our calculation to be based on a device that can limit the current to the track.  This device has a current limiting feature that will as it states “limit the current” whether it is 10’ long or 100’ long section of track.

Click on the link or cut and paste it to see the brochure for a couple of manufacturers track limiters.  The ones that I have seen out in the field have been from 1 ampere thru 13 amperes.  So using these devices will help reduce the loads calculated for track lighting loads.  This may not seem like a major factor but if you are sizing the lighting load for a furniture store or an art gallery these limiters will help in calculating the service load.  Another type of limiter that I have seen is a panel that has these limiters built into to it using 1 to 13 amperes as circuit limits.

 

 http://www.cooperindustries.com/content/dam/public/lighting/resources/library/literature/Halo/CurrentLimiterBrochure.pdf

http://www.junolightinggroup.com/literature/Subpanel_Brochure.pdf

 

 

TL 220.43(B) EXP.  

Till next week work safe be safe

Jake

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