UK/US usage: V ac, VAC?

[<tech -dot- writer1 -at- verizon -dot- net>]

I am editing some specs for components engineered in the UK, and I am seeing the abbreviation V ac used for "volts alternating current."  As a US-based tech writer I am used to seeing VAC.

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?

thanks, 
Michael
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

WebWorks ePublisher Pro for Word features support for every major Help
format plus PDF, HTML and more. Flexible, precise, and efficient content 
delivery. Try it today!. http://www.webworks.com/techwr-l 

Doc-To-Help includes a one-click RoboHelp project converter. It's that easy.  Watch the demo at http://www.componentone.com/TECHWRL/DocToHelp2005

---
You are currently subscribed to TECHWR-L as archive -at- infoinfocus -dot- com -dot- 

To unsubscribe send a blank email to 
techwr-l-unsubscribe -at- lists -dot- techwr-l -dot- com
or visit http://lists.techwr-l.com/mailman/options/techwr-l/archive%40infoinfocus.com

To subscribe, send a blank email to techwr-l-join -at- lists -dot- techwr-l -dot- com

Send administrative questions to lisa -at- techwr-l -dot- com -dot-  Visit
http://www.techwr-l.com/techwhirl/ for more resources and info.