coloradog1
Mining
I had a code question regarding sizing 4160V motor cables.
430.224 says that all conductors shall have an ampacity greater than the overload trip setting.
However, I cannot find any requirements regarding the setting of the overload for 4160V motors. 430.225 does not make any mention of the maximum settings for overload protection.
Is an overload setting generally assumed (such as 125%) in order to size the cables during the design phase?
Thanks for the help
430.224 says that all conductors shall have an ampacity greater than the overload trip setting.
However, I cannot find any requirements regarding the setting of the overload for 4160V motors. 430.225 does not make any mention of the maximum settings for overload protection.
Is an overload setting generally assumed (such as 125%) in order to size the cables during the design phase?
Thanks for the help