Answer Posted / jaimin
We are use ACB in LV system because of Low voltage & its
spark also low compare to HV system so that other
accessories use for ARC extinguisher size less than to HV
system.
But same system use in HV system need more size compare to
LV system for ARC extinguisher so we are use VCB design for
HV system & ACB design for lV system, All are suitable as
per respectively.
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