In the following, I'll speak only to UL certified wire. To get an official reading, call the nearest UL office and ask for the client advisor, then ask them to direct you to an engineer working with wire and cable.
One of the best resources for information about any UL product category is the Guide Card. For AWM, the CCN is AVLV2 and the Guide Card says the Recognition Mark "on the attached tag, the reel or the smallest shipping container in which the product is packaged is the only method provided by UL to identify these products manufactured under its Recognition and Follow-Up Service." It follows that all markings of account are placed on the tag, reel or shipping container. From my previous discussions with UL's wire and cable people, surface markings are considered optional. To make things even more interesting, during recent FUS inspections of our factory, the FUS Rep. explicitly stated that FUS can't rely on surface marking of AWM for wire harnesses. Go figure that one out and compare to your own experience. As for UL Listed wire, Sections 310-11 (for wire and cable) and 400-6 (for flexible cord) of the NEC give appropriate details for surface marking. Regards, Peter L. Tarver Nortel [email protected] > -----Original Message----- > From: [email protected] [SMTP:[email protected]] > Sent: Wednesday, June 24, 1998 12:34 PM > > Now I am getting mad. I have heard from enough of you that wire marking is > not mandatory. > > I understand that EN 60950 does not require marked wire, but wire > acceptable for the application. > > I had been lead to believe by a certain engineer from a certain agency > (who shall remain nameless) that marking certainly was mandatory. Not > having a copy of the wire standards, I foolishly accepted this as gospel > and did what I had to. > > I agree that marked wire is certainly the easiest way to prove compliance. > But if it is not mandatory, one can be creative is solving the problem of > proof. I am frustrated by the fact that I may have been mislead. If this > proves to be correct, it will just be yet one more reason why that agency > no longer works for our company. > > Can someone from one of the agencies or someone in possession of the wire > and cable standards please confirm or deny whether marking is mandatory or > not? And under what circumstances? > > Thank you. > Scott > [email protected] > >
