Phil said:
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[email protected]>
** Blah blah blah....
All wild guesswork.
BTW has no-body twigged that such a auto dialler unit made *expressly* for
the 120 volt market is NOT going to have the relevant telecoms approvals for
use in Germany etc.
When I was involved with the development of a similar product,
expressly intended for the British and U.K. markets, back in 1980, the
Deutsche Bundespost was still using "safety standards" as a non-tariff
barrier to trade. Since then, things have changed a bit
"Telephone services in Germany were formerly provided exclusively by
the Deutsche Bundespost or, later, by Deutsche Telekom AG. In mid-1996,
the Telecommunications Act entered into force. This act established the
regulatory framework for a liberalization of the telecommunications
market as of Jan. 1, 1998. Since then, telecommunications have been
deregulated throughout Europe and sparked keen competition and lower
telephone rates."
** Shame how such capacitors will pass DOUBLE current when fed from 240
volts as opposed to 120 volts AC.
So what.
Shame how same US items have film cap of up to 47nF fitted from AC line to
ground.
67.7k, or 3.5mA at 50Hz and 240V
Shame how the type of film caps US makers use reliably with 120 volts fail
SHORT due to internal corona when fed by a 240 volt supply.
That would have to be a film and foil capacitor - metalised film
capacitors fail open when exposed to internal corona. It would be a
surprising choice - Farnell's list of class Y film capacitors seems to
be pretty much entirely metallised film parts, which are smaller and
cheaper than their film and foil counterparts.
This alone crates a fatal shock hazard !!!!
It might conceivably do so, if your hypotheses about the existence of
the capacitors and the nature of their construction were both correct.
Shame how Bill Sloman is FUCKING public menace.
Amusing to see Phil Allison constructing hypothetical dangers out of
his under-equipped imagination.
** Yes, it may very well be unsafe when used with an auto-transformer
stepdown.
One *cannot know* without a full and detailed inspection of the unit.
True, but this is also true of ostensibly properly certified and
certificated gear - certification officials aren't always incoruptible.
The only SAFE advice to give when this is NOT possible is to use an
isolation stepdown.
The only really safe advice to give would be to tell the OP to take the
devices back to his boss, and insist that the company buy a system
designed and certified for the German market, which a 110V powered
device obviously isn't. Sadly, the OP doesn't want to do that.