This may provide some of the answers to Jason Chesley's questions on EN
61326-1.
The DOW as stated in EN 61326-1 (1997) has no relevance with regard to
CE-Marking since I don't believe this standard is yet listed in the OJ. In
my view, the delay in seeing the standard listed is linked to the perceived
"weakness" on the immunity side since these are only mimimum general
requirements. There has since been an amendment (1998-05) which
supplements the minimum requirements with more demanding immunity
requirements for industrial locations, for example.
The emission limits are taken verbatim from CISPR and reference both Class
A and B. The user must select one or the other on the basis of his/her
class of equipment and supported markets. The exemption clause to which
Jason refers exists in the IEC version of the standard but (I believe) not
in the EN version. This "in some countries" clause was put into the IEC
version at the request of the USA in support of existing (FCC) exemptions
for certain classes of industrial controls. It would not be appropriate
for the EN version.
Norm Provost
----------
From: Jason Chesley[SMTP:103401.1...@compuserve.com]
Sent: Tuesday, September 01, 1998 7:32PM
To: emc-p...@ieee.org
Subject: EN 61326-1 April 1997
Thanks to those for the info on Korea.
On another note.....
I've come across the need to use EN 61326-1 (April 1997). The standard is
for electrical equipment for measurement, control and laboratory use. The
DOW on conflicting standards was December last year. Somewhat unique to
the emc standards, EN 61326-1 incorporates both emissions and immunity in
the same document.
Although the standard is clear on what equipment type is covered I was
wondering if anyone has any input on the following areas:
Minimum immunity: -2, -3, -4, -5, -6 and -11 (where applicable of course),
notice the 4kv / 4kv on ESD. No magnetic (-8) even if applicable, say,
under 82-1 (97)?
No real mandate on emissions is stated such as the immunity was. In fact,
if the country has specific exemptions (does someone know the country
listings?) emissions is definately not required...... the whole section on
emissions seems rather weak. Any comments?
I have not seen any amendments to this standard yet, has anyone else?
Jason L. Chesley
Business Services Group Manager
EMC Technology Services, Inc.
UL
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