Scott, et al,
The cessation date is more flexible in the US than in Europe.
UL has a Continuing Certification Program which has been in place
for some time which can be applied to certified products approved in the
past.
For instance, UL recently announced that this CCP will apply to
61010 products which were certified under the 1st ed of the standard such
that those certified products may continue to be UL marked as long as no
changes are made in the construction as described in the UL Report. Any
changes, of course, force the evaluation the entire product to the newer
standard; this can especially become a problem when, thru no fault f the
product manufacturer, critical components disappear at end-of-mfg-life and
substitutions need to be made.
The decision to use this program seems to be on a
standard-by-standard basis and is up to the UL STP responsible for the
standard. All the STP stakeholders have an opportunity to affect the
decision to use (or not use) the CCProgram so all interests ought to be
served.
This approach does not negate the EN approach to having definite
cessation dates (DOCOPOSS, as John W always points out - thank you very much
John) and will be a point of confusion & frustration for manufacturers who
work to serve a worldwide market with a single product.
You should be able to determine if this is applicable in your case
by inquiry into the STP for your standard.
:>) br, Pete
Peter E Perkins, PE
Principal Product Safety Engineer
PO Box 23427
Tigard, ORe 97281-3427
503/452-1201 fone/fax
[email protected]
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