(2) Questions involving electrical enclosure.
-1. NEC 312.6.C requires that 4 awg or larger cable(s) to be installed per NEC 300.4.G. (In other words, include a bushing at the cable entry point). My question is: can the bushing/enclosure structure be viewed as a supporting structure?
-2. Does NEC have requirements regarding electrical devices mounted (internally) at ceiliing? This device is a 2 ohm "resistor" used to discharge extra amount of currents (50A). The device will be online for 5 mins at the max. And ofcourse we'll provide adequete standoffs & insulations.
Thanks in Advance.
-1. NEC 312.6.C requires that 4 awg or larger cable(s) to be installed per NEC 300.4.G. (In other words, include a bushing at the cable entry point). My question is: can the bushing/enclosure structure be viewed as a supporting structure?
-2. Does NEC have requirements regarding electrical devices mounted (internally) at ceiliing? This device is a 2 ohm "resistor" used to discharge extra amount of currents (50A). The device will be online for 5 mins at the max. And ofcourse we'll provide adequete standoffs & insulations.
Thanks in Advance.