I understand the Sharing of a neutral wire with 2 breakers each being on a different leg than the other that the load then will be the difference between the 2 circuits as they are 180 deg. out of phase when on a 2 phase service panel.
But what is the situation when sharing a neutral wire with 2 breakers using a 3 phase service panel when you have the 2 breakers on different legs. Are the 2 circuits are now 120 deg out of phase instead of 180 deg out of phase with each other?
What I have run across is two 20 amp cirtcuits sharing a neutral wire. The two 20 amp breakers are on 2 different legs of a 3 leg/phase service panel. Can the shared neutral become carrying an overlaod (over 20 amps) in this case? what is the formula for determining the load carried by the shared neutral wire on these two 20 amp circuits?
Thanks in advance for any info.
But what is the situation when sharing a neutral wire with 2 breakers using a 3 phase service panel when you have the 2 breakers on different legs. Are the 2 circuits are now 120 deg out of phase instead of 180 deg out of phase with each other?
What I have run across is two 20 amp cirtcuits sharing a neutral wire. The two 20 amp breakers are on 2 different legs of a 3 leg/phase service panel. Can the shared neutral become carrying an overlaod (over 20 amps) in this case? what is the formula for determining the load carried by the shared neutral wire on these two 20 amp circuits?
Thanks in advance for any info.