Search results for query: *

@Marmite, I agree but per project requirements, It is not allowed to run more than 240mm2 cable.

Thanks @jghirst. The problem is solved for me.

@jghirst, Correct. When I do calculation its 2400 Amps. So considering balanced 3 phase, it is 800 Amps per phase. So it means 4 runs of 120 mm2 should be good enough per phase (344 amps per run). Total 12 runs of 1 core 120 mm2 cables.

Hi, Jghrist - You are correct, my bad. I intended to say is 8 runs of 3 core 240mm2 cables as per calculation for 2400Amps, 3 phase current. But when I select 1 core 120mm2 cable, then I see that 4 runs 1 core 120 per phase should be sufficient. So it makes 12 runs of 1 core 120mm2 cables...

Thanks for your reply. I was looking for an answer on, if I can use 12 runs of 1x120mm2 (4 runs per phase) instead of 8 runs of 3 core 240mm2. regards

Hello, I have 690V network, 3 phase system, no neutral, with 2400Amps load current. I end up with 8 runs of 3 core 240mm2 cable size. When I select 1 core cable, I can manage with 12 runs. It means only 4 runs per phase. 3 core cable in general has low current capacity than single core. Is...

Hi All, I have a situation in hand, the client asks for certain protection coordination ( breaker curve) for our switchboard circuit breaker because at present situation the client generator circuit breaker will trip before our switchboard and it is not acceptable. Now our Vendor has replied...

Hello Fellow Members, Excuse me for my lack of knowledge, I am a project engineer and putting this topic for clearing my doubts and getting some more electrical knowledge. Suppose I have 2 switchboards, each switchboard has 2 busbars (so in total 4 busbars). Each busbar will be powered by one...