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Subject - amps on neutral side of single phase
tonytude I was working on a friends fishing camp today.Single phase 100 amp service.....he did the wiring himself.No wire nuts on connections,very few juction boxes at juntions,white wires on hot side , black on neutrals , 220 at porch light,ect..ect..what a mess....anyway.....I got half of it rewired today.I was checking the amps on each leg...23 amps on one side, and 35 on the other .Then i put my ampprobe on the neutral side and got 51 amps????? I don,t remember the last time i checked a neutral for amps, but i don,t remeber ever geting a reading on the neutral side much less an odd reading like that.......scatching my head in wonder.
Ed MacLaren If the hot conductor currents really were 23 amps and 35 amps, the neutral current should have been approximately 12 amps. An example calculation shown below.

It appears that something is wrong here. Possibly the conductor colors are incorrect, and the wire with 23 amps is actually the neutral?

Ed

tonytude No...the 23 amps wasn't the neutral...I will finish straiting out his wiring today and then check the amps again.The way he has it wired i thought i might be getting a bleed thru from the hot side??
Thanks for the diagram.Now i have something to go by.
I also added a new service outside . I am useing the old service as a sub-panel. Do i need to seperate the equipment grd from the neutrals on the old panel, and bond the two panels.the old panel only has 3 wires going to the meter and the meter grounded to the rod.
cs409 there is no telling what u will find and have to correct....... no telling how many shared ground conductors you have with their ungrounded conductors connected to one leg! best to you.

casey
trekkie76 If you have a multiwire circuit with both ungrounded condutors drawing from the same phase, the nuetral will have to carry double the current in the hots, not the imbalance.