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<blockquote data-quote="Declan Slater" data-source="post: 137653" data-attributes="member: 964"><p>Re: Sound & Stage Power</p><p></p><p>I don't mean any disrespect, but I don't think that multiconductor cable has to be derated as you say. I find folks reference that "bundling" code requirement, as taken out of context quite often. I understand that reference (if that is what you were speaking of), is meant to cover a group of conductors, tightly packed together through something like a wooden beam, that is 2' or greater - the key point here is that the heat on the conductors cannot be dissapated well. If the wires are in a rubber cable on the floor, or perhaps a metal or plastic conduit buried in cement, conduit hung on a wall, or suspended in free air - all those can dissapate the heat into the air, ground or cement. The wooden beam traps the heat, so that code reference is there to protect the conductors by derating/limiting them in that situation, that's the real intent of that code requirement.The standard 80% derating rule that applies to all conductors, is applied to multiconductor cables as well... at least that how I learned it in code classes (over and over...). If that was not your meaning or reference, then please forgive me.Socapex cable seems quite a handy method of handling the multiple branch circuits, and also by splitting those loads out as to reduce the total load on each circuit in that mannor, would also lower the voltage drop as stated by others on this thread. An additional advantage would be that the multiple circuits would provide additonal redundancy if something did cause a breaker were to trip out, the others would not.</p></blockquote><p></p>
[QUOTE="Declan Slater, post: 137653, member: 964"] Re: Sound & Stage Power I don't mean any disrespect, but I don't think that multiconductor cable has to be derated as you say. I find folks reference that "bundling" code requirement, as taken out of context quite often. I understand that reference (if that is what you were speaking of), is meant to cover a group of conductors, tightly packed together through something like a wooden beam, that is 2' or greater - the key point here is that the heat on the conductors cannot be dissapated well. If the wires are in a rubber cable on the floor, or perhaps a metal or plastic conduit buried in cement, conduit hung on a wall, or suspended in free air - all those can dissapate the heat into the air, ground or cement. The wooden beam traps the heat, so that code reference is there to protect the conductors by derating/limiting them in that situation, that's the real intent of that code requirement.The standard 80% derating rule that applies to all conductors, is applied to multiconductor cables as well... at least that how I learned it in code classes (over and over...). If that was not your meaning or reference, then please forgive me.Socapex cable seems quite a handy method of handling the multiple branch circuits, and also by splitting those loads out as to reduce the total load on each circuit in that mannor, would also lower the voltage drop as stated by others on this thread. An additional advantage would be that the multiple circuits would provide additonal redundancy if something did cause a breaker were to trip out, the others would not. [/QUOTE]
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