Hello Again Group: Please gentlemen, ... lets not leap to the assumption that simply because I offer an explanation that I have been given about wiring, that I have some inspection difficulties in the works, not the case at all.
By coincidence was the local UL inspector here yesterday ? Yes he was. Variation Notice ? No ... No... nothing of the sort, we needn't get excited. :-) I have simply offered an explanation I have been given, in response to Doug's question. Was this an official UL explanation ? Of course not, else I would have posed it as such. Was it given to me by product safety professionals experienced at working with UL? Yes indeed. Had any of them (or I) ever worked for a company that produced AWM ? Admittedly not. In reality, I doubt that there is enough rejected AWM that a viable market (or black market if you prefer) could exist. I would be willing to accept the surface printing as evidence of proper approval of the AWM, if UL would allow. However, I can say that in almost 20 years of submissions and inspections with UL, they have consistently been exceedingly reluctant to accept the surface markings on AWM without traceability back to a label on a spool somewhere. This to the degree that they cast doubt on the validity of their own approval markings. Oh my goodness, does this bring us back to Doug's original question ? It would seem so. Cheers, Richard Richard Payne Tektronix, Inc. Product Safety Engineering Tel: 503 627-1820 Fax: 503 627-3838 email: richard.pa...@tektronix.com -----Original Message----- From: Payne, Richard Sent: Wednesday, March 13, 2002 12:59 PM To: emc-p...@ieee.org Subject: RE: Wire spool labeling requirements Hello Group: The explanation that I have been given goes as follows. When a UL inspector goes in to inspect a wire manufacturer they have to do certain measurements on the wire to be sure it meets the requirements for that wire style. If it does not meet the requirements it is not accepted as UL Listed wire (AWM). However, these manufacturers do a run of many thousands of feet of wire which already has the surface markings on it, and can not reasonably be expected to destroy it (presumably reworking the wire is also not an option). So UL allows them to sell it, but they are not allowed to put a Listing label on the spool. Therefore it is possible to buy wire with proper surface markings that does not really meet the UL requirements. Thus the need for Recognized Processed Wire and Recognized Wiring Harnesses from Certified Fabricators who maintain records of the traceability of the wire back to a properly labeled spool (among other things). At least that's what I've been told. Richard Richard Payne Tektronix, Inc. Product Safety Engineering Tel: 503 627-1820 Fax: 503 627-3838 email: richard.pa...@tektronix.com ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list" ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
