Re: EU law?

[Patty Elliot]

Hello Therese,

There does not have to be a complaint against your equipment in order for a
Notified Body to examine it.  European authorities have the right to take
off-the-shelf products and examine them for compliance to the directives.
Germany and France are especially gung-ho on testing samples for the EMC
directive, regardless of whether or not there have been any complaints
against the equipment.

If you manufacture smaller, more portable equipment (such as a computer),
your  chance of being routinely audited is much greater than if you
manufacture large production-line equipment.

The Declaration of Conformity that is shipped with your equipment is a legal
document that states your product complies with the directive(s), and the
authorities have the right to verify the conformance.

Patty Elliot
TUV Rheinland of N.A.
(619) 792-2770
ell...@tuv.com

Personal opinion, not corporate
--
At 11:54 AM 1/17/97 -0600, Therese A. Klein wrote:
>I'm hoping someone could clarify the EU law.
>
>I've been told a EU member's government agency has taken one of our
>products to a Competent Body to verify conformance to the Directives.
>
>My understanding of the law is that there must have been a complaint, or
>incident, from a customer, for this to occur.  Or does that only apply
>to competitors submitting competitive product for analysis?
>
>As we all know, every Competent Body, and test lab can produce different
>results.  
>
>I will greatly appriciate any comments, thanks.
>
>Therese Klein
>EMC Project Engineer
>Rockwell Automation
>takl...@mke5.ra.rockwell.com
>

RE: Measuring AC

[Rick Busche]

Max
Your idea should work. On the old PS300/390 we did a similar thing to
extract a 50/60hz clock signal. A VDE opto-isolator is critical to this
design however.

>--
>From:  Max[SMTP:mkel...@chekov.corp.es.com]
>Sent:  Thursday, January 16, 1997 9:21 AM
>To:emc-p...@ieee.org
>Subject:   Measuring AC
>
>
>Does anyone know of a good method (or have any ideas) of how I could
>reduce line voltage down to low (DC) levels in order to measure the line
>voltage with an AD converter.
>
>Using a transformer is obviously the easiest way and probably provides
>the least potential problems with safety agencies.  But transformers are
>not (I don't think) terribly accurate and they are rather bulky even in
>this sort of application.
>
>What are the safety implications, for example, of just rectifying and
>filtering the voltage and running it through a voltage divider?
>
>Thanks,
>
>Max Kelson
>mkel...@es.com
>