240v on 220v

[yairs]

Is it it safe to operate 240v audio equipment on 220v mains,
or should I get a transformer ?

[Niall]

On Tue, 04 Aug 1998 13:32:02 -0500, yairs <ya...@yahoo.com> wrote:

>Is it it safe to operate 240v audio equipment on 220v mains,
>or should I get a transformer ?

Should be totally safe. Some marginally specced power supplies might
not work at all, but this is unlikely. If it's fairly recent european
gear it will be designed for nominal 230v anyway, with tolerance which
incorporates 220 and 240. UK - EU harmonisation to 230v supplies is in
progress.

--

Niall

[Chris Laudan]

The message <35C753A2...@yahoo.com>
from yairs <ya...@yahoo.com> contains these words:

> Is it it safe to operate 240v audio equipment on 220v mains,
> or should I get a transformer ?

If in UK:

yes
no

--
rgds,
Chris :)

[z]

yes it is safe

yairs <ya...@yahoo.com> wrote in article <35C753A2...@yahoo.com>...

[Allan]

In most cases YES No problem
Allan
yairs wrote in message <35C753A2...@yahoo.com>...

[Harry H Conover]

yairs (ya...@yahoo.com) wrote:
: Is it it safe to operate 240v audio equipment on 220v mains,

: or should I get a transformer ?

For audio equipment, you can likely get away with it. For
anything that consumes significant power, like a mainframe
computer, air conditioner, or big power equipment, you need
a transformer.

This becomes more of an issue when you need three phase power,
where the building power is 230 but you need 208. Here, a
transformer is mandatory (and expensive).

Harry C.

[John M. Hansen]

Auto transformers are available to solve this difficulty. 208 - 230 is
a standard autotransformer rating. Contact any transformer manufacturer.
Many electrical supply houses stock them.
Regards,
John M. Hansen

[Bill Coffel]

On 7 Aug 1998 01:44:38 GMT, con...@tiac.net (Harry H Conover) wrote:

>yairs (ya...@yahoo.com) wrote:
>: Is it it safe to operate 240v audio equipment on 220v mains,
>: or should I get a transformer ?
>
>For audio equipment, you can likely get away with it. For
>anything that consumes significant power, like a mainframe
>computer, air conditioner, or big power equipment, you need
>a transformer.

I checked several central air conditioners 2, 3, and 4 ton units
these are all nominal 230V (standard USA ) units
specified input voltage ranges are 187 to 252 or 196 to 252

I believe most equipment is designed for 208 to 240V nominal service
(with 5% tolerance).
Utility companies don't hold voltage to 1 or 2%.
Brownouts are 5 to 10% intentional reductions.
Any designer who creates equipment without tolerance to significant
voltage variations on the input is a fool.