Re: Dumb Question From A Lady

JRS:  In article <[EMAIL PROTECTED]>, seen in news:sci.e
ngr.electrical.compliance, John Woodgate <[EMAIL PROTECTED]>
posted at Wed, 19 Nov 2003 21:32:52 :-
>I read in sci.engr.electrical.compliance that Virginia Belle
><[EMAIL PROTECTED]> wrote (in <[EMAIL PROTECTED]
>2237.public.lawson.webtv.net>) about 'Dumb Question From A Lady', on
>Wed, 19 Nov 2003:

>>9 + 9 makes 18 doesn't it?

>Some , but not a lot. Yes.. 9 + 9 = 18, but to get 18 you have to
>connect the wires 'in series'. I'll try to make a diagram. You need to
>use Courier (or Courier New) font to see it correctly.

No; any fixed-pitch font will do adequately.

You are assuming that the devices have fully-floating outputs, with no
direct connection to the supply-side [live] neutral or earth.  That
ought to be the case; it may be mandated in the EU; but, if there is any
possibility of it not being so either where the OP is located or where
any other reader might be (whether by design or by fault), ISTM that the
point should be checked.

One should also note that if at any time only one source is energised
and a load is connected, the other source will be reverse-driven, which
might not be good.

OTOH, the nature of such things and their market is such that they ought
to be designed to be foolproof.
 
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