American mains voltages
American mains voltages
(OP)
America has 120v mains , but does any one know if this is going to change nationally down to 115v and 230v ?
We are about to have some labels printed and don't want to have 10000 printed incorrectly !
Regards Appleman
We are about to have some labels printed and don't want to have 10000 printed incorrectly !
Regards Appleman
Orchard Electronic
Hailsham
E.Sussex






RE: American mains voltages
Blacksmith
RE: American mains voltages
RE: American mains voltages
I would suspect that NEMA are the people to ask that question.
RE: American mains voltages
The main problem is confusion between nominal system voltage and the device utilization voltage.
ANSI C84.1 gives standard nominal voltages and the acceptable voltage ranges. Standard nominal voltage for a typical US service is 120/240. Minimum utilization voltage **at the receptacle** is 110 and maximum utilization voltage is 126. There is an extended range of 106 to 127 V under certain circumstances.
The utility is to provide voltage to the service point within 114 to 126 volts.
I see no chance that there will be any change to the nominal voltages, and I'm not sure why anyone would think there would be a change.
End-use equipment is typically labeled for 115V, just as motors used on a 480V system are nameplated at 460V.
RE: American mains voltages
Blacksmith
RE: American mains voltages
Supporting other responses, the C84.1 standard is the "official" boilerplate, but http://ari.org/std/individual/110-2002.pdf lists similar numbers and descriptions for low-voltage situations.
RE: American mains voltages
Regards Appleman
Orchard Electronic
Hailsham
E.Sussex