If your limit is 25% though you should be more than fine. Dunno, check out their web site to see if there is any info there. You entered the product number and it would tell you how many you can put in 1/2" on up. You need then to look at the manufacturers recommendation, not the NEC.īelden used to have a slide calculator to determine the maximum number of cables allowed in a particular size conduit. It refers you to 300.17 which says nothing that you already didn't know. Look at Article 725, specifically 725.3(A) " Number and Size of Conductors in Raceway". Article 314 has nothing to do with LV wiring. Problem is your thinking on this is wrong.
#THE SHARPER IMAGE EC WS115 WONT TRASMIT CODE#
What would be the correct size box to use for these very low voltage conduit runs? Is there anything in the code that would cover this? Article 314 A is the only rule I can find. Its 24 volts AC and our limit on conduit fill is 25%. There is little to no heating effect by induction in the conduits. This is actually what they are doing on our projects. Belden cable is so flexable, it will go in a 4 square box easy considering there is enough sq inches in the box for that application.Ĭurrently under their rule, the length of the box on a straight pull would have to be 8 times the size of the largest raceway or 8 x 8 x 4 box. Sometimes you have to use some common sense. Ive been arguing this fact for months with other electricians and designers that say if the Belden cable diameter is equal to #4, you have to use this article. But.Īrticle 314.28 A ( Minimum size Pull and Junction boxes and conduit bodies)states that if the conductor is #4 or larger, the following box calculation will be used and so forth. To me a 4 square box would be sufficient for a one or two pair 18 gauge Belden cable. What is the requirement for sizing the boxes in the conduit runs out to this equipment? Mostly, 1 inch conduit is used. We use Belden cable because all of the devices are 12-24 volts AC. I have a job that requires Belden cable to be run to several devices like cameras and other security sytem components.
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