I have never used this forum before and I would like to thank you all for your help. I have the answer I been looking for. The cable is #1 AWG. The AWN is an appliance rated cable.
asper info written on the cable.
First thank you for your timely response.
No study to my knowledge has been performed. The switchgear package has many future and blank space for feed outs. At present the system is lightly loaded not more than 200 amps mostly lighting. My question is, should the cable be rated for the fault...
I have a 13.8KV-480/277V 300KVA 5.6% imp.transformer.The tranformer feeds a 25KA fault rated bus. Secondary bus main with 1600 amp frame with PU set at 400 amps, ST PU 2.4KA amps Inst. set at 4KA. The transformer secondary is connected in air AWN #1 AWG 2 per phase. The secondary cable is on...