Hello Rich,
EN 50116:1996 'Routine electrical safety testing in production'
is meant to be used in conjunction with document CCA-201
'Factory inspection procedures-CCA Harmonized requirements'.
CCA stands for 'Cenelec Certification Agreement'.
The document deals with typical factory inspection procedures
and tests which a manufacturer is expected to provide to ensure
that all certified products are identical within accepted manufacturing
tolerances to the sample against which the Certificate was granted.
The grounding test (Sect. 15.1) only requires the grounding path resistance
to be below 0.1 Ohm (without the line cord), a test current of 1.5 times
the current carrying capability of all circuits with hazardous voltages,
but not above 25 A.
The time duration is not specified, but shall be long enough,
to receive a meaningful evidence about the tested parts and
the protective earth.
mit freundlichen Gruessen/ best regards
Volker Gasse
IBM Germany, Technical Relations/Product Safety,
Tel: +49-7031-16-6796, Fax: -6916, e-mail: ga...@de.ibm.com
Mail: D3114/7103-91, D-70548 Stuttgart, Germany
Rich Nute <ri...@sdd.hp.com> on 26.08.99 02:03:38
Please respond to Rich Nute <ri...@sdd.hp.com>
To: harr...@dscltd.com
cc: emc-p...@majordomo.ieee.org (bcc: Volker Gasse/Germany/IBM)
Subject: Re: Grounding Bond Test
Hi Kevin:
> Interesting P.S. comment. Surely this can only be so if one is not
dealing
> with a CE country. I don't see how a test agency can waive the
requirements
> for meeting the LVD in Europe. If it is indeed as you say, then where
does
> it put those of us who have in house safety testing and self certify.
I'm not sure that EN 50116 is a EU-adopted standard.
If true, its use is at the discretion of the
certification house. Or the manufacturer.
The implication of your question is that ALL products
bearing the CE (for safety) mark must be tested at 25
amps for 1 minute (or the lesser current). In either
case, the 1-minute is onerous -- even prohibitive --
for high-volume production (i.e., where production
approaches or exceeds 1/minute).
We have a number of CB Certifications by non-Euro
certification houses. None of these certification
houses impose EN 50116. We DON'T perform a 1-minute
test, nor do we perform a high-current test.
Perhaps another of our subscribers can comment on the
status of EN 50116 with respect to the EU.
Best regards,
Rich
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