Production Line Hipot Test for Network Powered Equipment
Hello PSTC members! I'm working on a product that is telecom network powered (-190 Vdc) and will most likely require a production line hipot test. Being network powered, it is exposed to outside plant surges and has transient protection designed in (fuse and sidactor). UL's Follow-up Services gray pages states that Transient voltage suppresion devices other than capacitors connected from primary wiring to dead metal may also be disconnected during the test. Will a production line hipot test be required? Has anyone had experience with this and how do you go about removing soldered sidactors to do the hipot test? It seems like this would be an extra step in the manufacturing process. All comments/opinions are welcome. Thank you, Jerry -- ___ Get your free email from http://mymail.juno.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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@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: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: SBC TP76200MP DC Power Requirements
Jim, Thank you very much for the information. Do you have a recommendation on the Omron types? Regards, Jerry On Wed, 6 Oct 1999 08:23:55 -0500 JIM WIESE jim.wi...@adtran.com writes: You can order programmable relay controllers from Newark or Allied electronics. Omron makes some good ones for this test. They run about $150. The inductor will have to be custom built using E and I cores and if done correctly will weigh about 75 to 100 pounds (assuming you need to source any amount of current over a few amps). Good Luck, Jim Jim Wiese NEBS Project Manager/Compliance Engineer ADTRAN, INC. 901 Explorer Blvd. P.O. Box 14 Huntsville, AL 35814-4000 256-963-8431 256-963-8250 fax jim.wi...@adtran.com -- From:Jerry Martin[SMTP:martin_je...@juno.com] Sent:Wednesday, October 06, 1999 12:33 AM To: t...@world.std.com; emc-p...@ieee.org; n...@world.std.com Subject: SBC TP76200MP DC Power Requirements Does anyone have any experience with SBC's TP76200MP document? I'm specifically looking for information on how to do some of the tests in Section 8 DC Power. Where can I get/make an Electronic Switch/Relay of Figures 8-3 and 8-5? Where can I get/make the 0.08 H inductor? Any help is appreciated. Thanks, Jerry ___ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj. ___ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
SBC TP76200MP DC Power Requirements
Does anyone have any experience with SBC's TP76200MP document? I'm specifically looking for information on how to do some of the tests in Section 8 DC Power. Where can I get/make an Electronic Switch/Relay of Figures 8-3 and 8-5? Where can I get/make the 0.08 H inductor? Any help is appreciated. Thanks, Jerry ___ Get the Internet just the way you want it. Free software, free e-mail, and free Internet access for a month! Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
Lightning and Power Cross Testing
I've been asked to test a network powered (-130 Vdc) product to GR-1089-CORE for lightning and power cross. Does anyone out there have any suggestions on how to do this testing while the product is powered? The problem is that if you apply 1000 V, 10/1000 uSec, 100 A to tip/ring while the product is powered, you will damage the power source. I've looked into using series inductance followed by an MOV and capacitor, but I'm not sure if all the energy is getting to the UUT. Another problem is that my tester applies a short to tip and ring prior to the application of the test voltage. The same problem doing power cross (600 Vac, 1 A, 1 Sec). Applying this kind of voltage to the power source will damage it. Is there a way for the UUT to remain line powered and provide protection to the power source? Has anyone had similar problems? Thank you very much for any suggestions. Jerry
ADSL Modem and FCC Part 68
A quick question on ADSL modems: Do they have to meet Part 68 requirements? Thank you, Jerry
