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Johny B Good Johny B Good is offline
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Default Audio Precision System One Dual Domani Measuirement Systems

On Sat, 28 Jan 2012 00:28:20 -0000, Dave Plowman (News)
wrote:

In article
,
wrote:
n Britain one may readily obtain a "site transformer" which will
give what is advertised as 110 volt balanced power. I haven't been
there in 20+ years, can any Brits tell me if that's really true or if
120, or more, or less, is actually common? They are used for electric
drills and whatnot outdoors. Vintage US gear works fine at 110, but
mostly not current stuff.


110 volt via an isolating transformer is used on building sites etc for
all power tools. Purely for safety reasons.


Just for completeness ( I know I'm very late to this party but it's an
important point), Those 110v transformers produce a bi-phase supply of
55-0-55 Vac. The two lives provide the 110v but the shock hazard wrt
grounding is reduced to a mere 55v which is merely very unpleasant in the
wet if the user happens to provide a path to earth.


--
Regards JB Good