[buug] BUUG 2007-10-04 NEMA (e.g. L6-30R, etc.)
Michael.Paoli at cal.berkeley.edu
Fri Nov 9 20:16:53 PST 2007
BUUG 2007-10-04 NEMA (e.g. L6-30R, etc.)
I think it was the 2007-10-04 BUUG meeting we had some discussions on
various NEMA plugs/receptacles, and power, etc. (e.g. for larger UPSs).
Wikipedia has some quite good information, e.g.:
and there are some nice good reference links from there, which have,
e.g. some fairly concise array displays of types of connectors, e.g.:
Note also that the NEMA voltage and current ratings are the RMS
maximums. E.g. L6-30 is very commonly 208V rather than 240V or 250V.
208V is 2 legs of 3 phase:
we'll start with unit (a=1, b=1), and multiply by 120 a bit later
and now dropping in the 120 factor:
208 (when rounded to the nearest unit)
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