FionaZuppa
Senior Member
- Location
- AZ
- Occupation
- Part Time Electrician (semi retired, old) - EE retired.
5 day recording by poco for 120/240 1ph resi.
poco tells me they run by ANSI C84.1 (i assume range A)
under C84.1 is it supposed to be 120 nominal, at least once? this chart shows ~124 nominal.
but i'll ask, does ANSI C84.1 just provide a min/max range, or does it also spec that nominal should be 120v with the allowance for fluctuation to min/max ?
this chart does not look to me to be complaint with C84.1. I rather sure it went above 127v at least once, but poco says "all looks ok".
what say you?
poco tells me they run by ANSI C84.1 (i assume range A)
under C84.1 is it supposed to be 120 nominal, at least once? this chart shows ~124 nominal.
but i'll ask, does ANSI C84.1 just provide a min/max range, or does it also spec that nominal should be 120v with the allowance for fluctuation to min/max ?
this chart does not look to me to be complaint with C84.1. I rather sure it went above 127v at least once, but poco says "all looks ok".
what say you?