LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
It won't. Discos are sized by 'class', such as 30, 60, 100, 200, 400, 600, etc. A bolted fault is going to overload the disco as well as the conductors, until an open circuit is developed by the weakest point burning open.jcassity said:SO,, the definition of "applicaton" is where this issue resides unless i can find out in the NEC where it says a quick disc must be cabled to its ampacity.
You should start with the desired ampacity delivery level, install conductors with at least that ampacity, install OCP to protect those conductors, and use a class of disco rated at or above the required level.
You need OCP sized to protect the conductors that are necessary to carry the load. Whether the conductors meed to be rated to match the class of the disco is such a non sequitur, it's amazing. The answer is no, by the way.
Now, if the disco's in question are somehow capable of limiting current, then we can have another conversation. But, since the disco's are not, they seem to be just as arbitrarily chosen as the conductors seem to be.
I know you know this stuff already. You're looking for an answer to a question that requires an otherwise-compliant and properly designed circuit in order to give a meaningful response. The disco size is irrelevant right now.