Designing Cables for Motors protected by cascaded LV circuit breakers
Designing Cables for Motors protected by cascaded LV circuit breakers
(OP)
Hi All,
I am trying to locate some clear literature on designing cables(for the I2t) component where the motor cables are protected by cascaded LV cricuit breakers or CB with current limiting fuse upstream protection.
Thanks in Advance
Romm
I am trying to locate some clear literature on designing cables(for the I2t) component where the motor cables are protected by cascaded LV cricuit breakers or CB with current limiting fuse upstream protection.
Thanks in Advance
Romm





RE: Designing Cables for Motors protected by cascaded LV circuit breakers
If you knew the definiitons of all the terms you used in your post, you would not be asking this question in this form.
Also look up cable damage curves, compare them to some breaker and fuse curves for example take a #4/0 cable which is good for 230A, check it vs. a 225A breaker curve and some of the things will become clearer.
RE: Designing Cables for Motors protected by cascaded LV circuit breakers