In response to Pete Tarver's info about the Furukawa TEX-E, we had to check on this a couple of months ago for one of our clients.
Pete's right about the Annex U not applying to the Furukawa wire under Amd. 3. However, Furukawa petitioned the standard committee, and the notes from the meeting stated that Amd. 4 would include a revision to accept Furukawa type wiring under Annex U. I would assume that Furukawa has already begun the Annex U investigation, as they are running neck and neck with another triple insulated wire manufacturer (Totoku Elec. Co., Ltd.). I think that the way our client resolved the issue is that they had their product approved to 2nd Amd., which the Furukawa has been evaluated for, and will re-evaluate the product at a later date. Hope this helps. Art Kampmeier A-Pex International Co., Ltd. > On the other side of the coin, Annex U only allows winding wire that is = > spirally wrapped in polyimide film, which the subject wire is not. = > Properly used, I'm confident that TEX-E will make it through most any UL = > evaluation, particulalry for ITE, since that was my goal in doing the = > work. The same probably applies to CSA (Egon?). However, you will = > probably have more difficulty with the application elsewhere than in the = > northern bits of North America. > At the time I was performing the evaluation on the subject winding wire, = > the proposal for Annex U had been made, but was not yet voted on in TC74 = > or in some similar state of being. It was my understanding then that = > there was either one or a small core of magnet wire manufacturers in = > Europe (German, meguesses) that pushed for Annex U. I urged Furukawa to = > take the issue up with TC 74, but haven't heard or read anything on topic = > since. > > Regards, > > Peter L. Tarver > Northern Telecom > peter_tarver-mt...@nt.com
