Dear berkeman,
Thanks a lot for your response,
My Country : Sudan
The government regulating body sets the safety standards for these components: The latest edition of the following codes, regulations and standards:
• IEC 60146 Low voltage switchgear and control gear
• IEC 60269 Low voltage...
I have Distribution board, Outgoing (D.B1)
But I got confuse for MCB sizing:
The busbar 400V, 125A, 50Hz, 4P, 10KA for 1Sec.
The part of Outgoing Rates as the followings:
Feeder-1: 2.5 KVA used 25A MCB 2P
Feeder-2: 3.5 KVA used 25A MCB 2P
Feeder-3: 2.0 KVA used 25A MCB 2P
Feeder-4...