component spacing question

I wanted to pose the group a question in regards to spacing requirements for the U.S. Many UL standards allow for the exception of components (such as semi conductors, switches, etc) to not meet spacing requirements (as they usually have different standards they meet anyways) The question is

RE: we need some information

David- I took the liberty of adding proper punctuation to your note, since I, too, had nothing better to do. Thank you. -Original Message- From: david_inst...@uk.xyratex.com [mailto:david_inst...@uk.xyratex.com] Sent: Wednesday, November 29, 2000 2:03 AM To: Cortland

EN60068-2-32 procedure 2

Hi GroupNov 29.00 Can some one give the general description of what type of test that EN60068-2-32 procedure 2 calls for. I have not yet received my copy of EN600068 and would not like to get a jump-start. Thank you in advance. Sincerely Stig W. Jorgensen

RE: we need some information

Here's Webster's Second Edition New World Dictionary definition: ball bearing 1. a bearing in which the moving parts revolve or slide on freely rolling metal balls so that friction is reduced 2. any of such metal balls I think, however, that it would be more appropriate and descriptive to

Re: we need some information

I'll note this and attempt to be more accurate in the future. Hopefully, it will reduce your hatred to a mere peeve. Regards, Cortland == Original Message Follows Date: 29-Nov-00 02:01:29 MsgID: 1077-5554 ToID: 72146,373 From:

RE: we need some information

Actually, I had quite a collection of old electronic and telegraph instruments, gotten from a local junkyard of which our landlord was the owner. Alas, my small collection was junked while I was in the Army. My grandmother had my stuff and when she moved, instead of asking me to take it back,

Japan Telecom Homologations; Test Reports in Japanese!

Dear All, I have heard rumors that the Japanese homologation requires test reports (such as IEC 950 CB Test Report) be translated into Japanese. Has anyone passed Japanese homologations without test reports translated into Japanese? Peter Merguerian Managing Director Product Testing Division

Re: IEC 61000-3-2 -3-3

My comments re Woodgate was confsuing. What I meant to say was the transformerless SMPS s appear to generate considerable nosie as opposed to the passive transformer. Is anyone concerned about this noise? Ralph Cameron - Original Message - From: Ralph Cameron ral...@igs.net To: Dick

Re: End of Line Testing of IT Equipment

Tony, I have added my thoughts below in brackets [ ] .. reynolto%pb@interlock.lexmark.com on 11/29/2000 06:01:50 AM Please respond to reynolto%pb@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc:(bcc: George Alspaugh/Lex/Lexmark) Subject: End of

RE: End of Line Testing of IT Equipment

I'm sure we have been through this all before, but here goes : For equipment certified by UL and CSA (and I assume by other agencies, but I have no personal experience), the End of Line Tests will be specified as part of your certification. For Europe, there is EN 50116, which defines the

End of Line Testing of IT Equipment

All, What are the exact requirements for End of Line testing and do they differ from country to country. We currently subject products to the following tests: 1. Earth Bonding at 25A (resistance to be less than 0.1 Ohms) 2. Dielectric strength

Re: we need some information

Just a litle pet hate of mine, but ball BEARINGS consist of both the races AND the STEEL BALL (or plastic sometimes) but that little round bit we all like to use as missiles or for the game of marbles is a BALL not a ball BEARING. Cortland Richmond wrote: Slingshot? Heh! Used a CRT

Re: IEC 61000-3-2 -3-3

J.M.Woodgate's comments are very appropriate to identify where all the conducted noise is coming from in consumer residences but does nothing to mitigate the problem. The unfiltered SMPS used for replacement of the old reliable non noise generating physical transformer contributes little or no