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> Can anyone in the UK confirm that V ac is the accepted, or more commonly used, usage there?
> And can anyone in the US confirm that VAC is the accepted abbreviation?
Considerable variation exists on both sides of the pond. One thing is
consistent:
people who like to think about the theory of measurements (e.g., physicists and
standards bodies) prefer not to join the unit (V) and the qualifier (AC).
In the US, I usually see "Vac" or "V ac" in government and very formal
publications,
and "VAC" in consumer-product manuals.
If you cannot find any industry-specific style guides or standards,
perhaps these examples will help.
The British Standards Institution web site uses "V AC" and "V a.c."
The IEEE Computer Society Style Sheet suggests "Vac"
ANSI/IEEE std 260.4-1996 doesn't say what to use, but says NOT to use "Vac"
On the other hand, some other ANSI publications use "Vac"
--
Paul Goble
Colorado Springs, Colorado
techwr-l: pgcommunication -at- gmail -dot- com
everything else: pg -at- pgcommunication -dot- com
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