Chris,
about safety, if you look at EN 60065 (IEC 60065), you'll see that any
loudspeaker is included, regardless of its input voltage. Of course,
most of the tests are not applicable to those devices.
However, only loudspeakers using voltage higher than 50 V AC or 75 V DC
are affected by LVD. It doesn't matter if it is a passive or active
loudspeaker.
Moreover, in order to test a loudspeaker, the laboratory needs an
amplifier capable to provide the maximum power the loudspeaker admits.
That amplifier is not under test, it is just an auxiliary equipment.
I hope to have helped you
Juan Pedro Peña
____________________________________________________________
CENTRO DE TECNOLOGIA DE LAS COMUNICACIONES, S.A.
PTA - C/ Severo Ochoa, 2 - 29590 Campanillas
(Malaga) - SPAIN
Tel.: +34 95 261 91 55 - Fax: +34 95 261 91 13
e-mail: [email protected]
Web: http://www.cetecom.es/
____________________________________________________________
----------
De: Colgan, Chris[SMTP:[email protected]]
Enviado el: viernes 12 de marzo de 1999 13:13
Para: EMC-PTSC discussion group (E-mail)
Asunto: passive loudspeakers
Hello All
Does anybody know of any safety or EMC regulations that apply to
passive
loudspeakers?
Two particular areas of concern have been raised by colleagues:
1) Stability tests, especially for North America (or anywhere
else)
2) Insulation of terminals - I have heard claims that as a
loudspeaker
could be supplied with a fairly large voltage, 100V rms or more,
it
could fall in to the scope of the Low Voltage Directive. I
don't agree,
but has anyone had any experience of this?
Thanks
Chris Colgan
EMC & Safety
TAG McLaren Audio Ltd
mailto:[email protected]
=====================================================
Authorised on 03/12/99 at 12:13:44; code 36dd0c74B2250754.
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