Gary, you should have been at the Vz NEBS conference (which ended yesterday) and asked this question. One of the presenters was Ernie Gallo from Telcordia, and judging from his very informative presentation, may be able to answer your question. Ernie can be reached @ 973.829.4638 or via e-mail (I'm copying him as well) @ [email protected] - Ernie, the floor is yours.
Regards, Naftali Shani, Catena Networks (www.catena.com) 307 Legget Drive, Ottawa, Ontario, Canada K2K 3C8 613.599.6430/866.2CATENA (X.8277); C 295.7042; F 599.0445 E-mail: [email protected] From: GARY MCINTURFF [mailto:[email protected]] Sent: Wednesday, October 08, 2003 5:20 PM To: emc-pstc Subject: Corrosion tests - NEBS or Milspec accleration factors? Question came up. Is there any real time correlation for some of the NEBS endurance tests. Salt corrosion (outdoor units - GR-487) for example.? In other words does the 200 hour test relate to 20 years real exposure to salt fog and spray common in port cities. Same question for the Mix flow gases and/or the hygroscopic dust tests. The test can be looked at one of two ways - 1) There is a direct acceleration correlation for every hour in the chambers the equipment would experience similar corrosion in 2 weeks of exposure if installed in a seaport etc. 4 hours 8 weeks etc. 2) The tests may be overly harsh, but experience has shown that while not directly relatable if the equipment withstands the various tests then it will last at least as long as the contracted life of the equipment. Say 20 Years! GR-1089 and GR-63 don't seem to provide this information. Is there somewhere else I should be looking? Thanks Gary
