K2500 said:I ask because 480 max. value is about 679V.
chris kennedy said:Where did you get this from?
infinity said:I would assume he's thinking about peak voltage:
480sparky said:Peak voltage of 480 volts is 679 volts. 480 is the RMS value.
benaround said:benaround 600vac rated wire is good on any system up to and including 600vac.
Jraef said:Wire insulation voltage ratings are RMS, as are most all AC devices and systems. So 600V rated wire will handle 600V RMS, which would technically be 849V peak, but I don't know of anyone who thinks in terms of peak voltages with AC.
K2500 said:I don't know of anyone who thinks in those terms either, but it was enough to get me wondering.
Thanks for the quick replys.
Amen, Jim. Mfg's voltage ratings are for RMS.jim dungar said:In the NEC definitions, voltage (of a circuit) is defined as RMS.
infinity said:I would assume he's thinking about peak voltage:
480/.707=678.92 volts
chris kennedy said:Where does the .707 come from?