Ok, dumb question dujour.Being a country boy and not a Philadelphia lawyer, and having a somewhat of a hard time reading the code. In figureing allowable ampacities, 310-16, Would the ground conductor be considered a current carrier? or since it's not supposed to carry current, it doesn't figure into the equation. OK big roundel on my backside, feel free to take a shot. Trainwire
Train, You need to be more specific about what conductor that you are referring to. Are you talking about the equipment grounding conductor or the grounded conductor? If it is the EGC, that is never counted for derating purposes. Derating if required only because of the heat that is produced in the current carrying wires. If you are talking about the grounded conductor, then the answer is, sometimes. If the grounded conductor is part of a multiwire circuit and there is not a lot of non-linear loads on the circuit, then it is not counted. If it is not part of a multiwire circuit, it is always counted. It is also counted when part of a multiwire circuit where the majority of the loads are non-linear. If you have a three phase system and are using only 2 phases and a grounded conductor, it is counted. Don
#14761 - 10/01/0211:43 AMRe: Doing my best to show my ignorance
That would be the same under U.K. rules. An equipment grounding conductor (earth continuity conductor, circuit protective conductor, or any other fancy name) is not intended to carry current in normal use and is therefore not counted for derating purposes.
#14765 - 10/01/0206:27 PMRe: Doing my best to show my ignorance
And you'll never beat me on the ignorance thing! Scott35 and myself have been arguing over who is the self-appointed ECN village idiot for well over a year now... I think I got him beat hands down!
Once again I will always be the reigning ECN Village Idiot!!! Could use a few Proteges to Mentor
On a semi-related note, still need to create an Animated GIF with Dunce Cap or growing Donkey Ears. What was that App for making said .gif files? Does Paint Shop Pro's Animation Gallery have this? [haven't explored too much]
Scott S.E.T. aka "Don-keyJotte (Don Quijote, or however it's spelled)
Scott " 35 " Thompson Just Say NO To Green Eggs And Ham!