J box 2 circuits or more and tied all neutrals together, you will have parallel neutrals back to panel. Seen many times. Issue that all neutrals will be energized when only one circuit turned off. Lights are off but you will still have current potential on the neutral.Can someone please give me a example of parallel neutrals causing a problem or any type of danger ????????????????????????????????????????????????????
J box 2 circuits or more and tied all neutrals together, you will have parallel neutrals back to panel. Seen many times. Issue that all neutrals will be energized when only one circuit turned off. Lights are off but you will still have current potential on the neutral.
Illegal but extremally common in an area that doesn't have license requirements, that GC and handymen do their own thing and have never opened a code book, no permits and no inspections.Yes, but that is an illegal hookup. One problem with parallel neutrals is if the installation did not follow code and one conductor was longer than another.
@domnic Are you talking about larger conductors like 1/0 and larger?
If i have a # 3 thhn and a # 6 thhn neutral from the meter base to the 100 amp panel . other than double lugging , what is the problem ?Not sure but I think he is wondering about ground (neutral) loops, EMF issues.
Where is the double lugging. You have a neutral (#6) and 2 hots (#3)---Is that correct? You really need to explain further. You are giving little bits of info but not enough to know what you mean. You cannot parallel wires smaller than 1/0 so I am not sure where the title fits here.If i have a # 3 thhn and a # 6 thhn neutral from the meter base to the 100 amp panel . other than double lugging , what is the problem ?
It's 6:43 and all is fine!I think he means he has both a #3 & #6 going to the meter base neutral lug. Double lugged. Two in a hole.
The world will come to an end tomorrow at 6:23 AM
It's not supposed to be done. Someone didn't know better most likely.
WHY ????????????????????????????????????????????????I think he means he has both a #3 & #6 going to the meter base neutral lug. Double lugged. Two in a hole.
The world will come to an end tomorrow at 6:23 AM
It's not supposed to be done. Someone didn't know better most likely.
Dang. Wrong again.It's 6:43 and all is fine!
Are both neutrals? If yes, the problem is a difference in resistance between the 2 different conductors forcing a larger load onto one of the conductors creating an imbalance, and potentially overloading one conductor. Also a code violation Each conductor of the parallel must be capable of carrying the full imbalance load imposed.If i have a # 3 thhn and a # 6 thhn neutral from the meter base to the 100 amp panel . other than double lugging , what is the problem ?
Maybe someone needs to check my math.Is it likely to cause a mechanical or electrical problem at typical load of the #3, No.
A 200 amp load on the two in parallel would result in about 133 on the #3 and 66 on the #6. Using table 9 for DC values of resistance.
Can someone please give me a example of parallel neutrals causing a problem or any type of danger ??????????????????????????????????????????????
The code does not allow wires smaller than 1/0 to be paralleled.Parallel neutrals at the service two different sizes what harm or danger could it cause ?
YOU are side stepping the Queston !!The code does not allow wires smaller than 1/0 to be paralleled.
More than 1 wire in a lug designed for 2 wires.
Can't use THHN into an outdoor meter, needs to be THWN or XHHW etc