Daniel & PSNet,
IEC 950 - now IEC 60950 - is an international standard, meaning
that all countries participating in the development of the standard bring
their codes and practices to the table and some subset of the same is
included in the final standard.
EN 60950 is the European version of that standard. It includes
specific Euro codes and practices which were not agreed to by the
international community. These differences are important and must be
adhered to in complying with the standard. You cannot claim compliance to
the EN for CE marking purposes without meeting these deltas.
In the same way, UL 1950 is the American version of IEC 950. It
includes many American changes that result from our codes and practices
here. In order to get NRTL certification to this standard, the equipment
must comply with these deltas, too.
From a certification point of view, the IEC standard is not
important. The equipement must meet the locally adopted version for
compliance. From a standards development or future looking viewpoint the
IEC standard is driving the local standards in the highest or most general
way.
The manufacturer's dream is to see all of these standards be
exactly equal in wording - i.e. no local deltas. Probably not in my
lifetime - there are some basic underlying requirements in each market. In
America, for instance, the NEC contains basic requirements which will not
change soon; plus there are legally driven requirements based upon case law
that companies have to meet in America - such as the use of ANSI labels
else the product markings are deficient.
So, get the local standards and comply with them... that's the
requirement.
:>) br, Pete Perkins
- - - - -
Peter E Perkins
Principal Product Safety Consultant
Tigard, ORe 97281-3427
+1/503/452-1201 phone/fax
[email protected] email
visit our website:
http://ourworld.compuserve.com/homepages/peperkins
- - - - -
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