Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.1 6/24/83 (MC840302); site ecrcvax.UUCP Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!think!harvard!seismo!mcvax!unido!ecrcvax!snoopy From: snoopy@ecrcvax.UUCP (Sebastian Schmitz) Newsgroups: net.periphs,net.news.sa Subject: Re: uninteruptable power supply for a VAX Message-ID: <109@ecrcvax.UUCP> Date: Mon, 10-Jun-85 11:59:47 EDT Article-I.D.: ecrcvax.109 Posted: Mon Jun 10 11:59:47 1985 Date-Received: Thu, 13-Jun-85 01:00:59 EDT Organization: ECRC, D-8000 Muenchen 81, W. Germany Lines: 44 Xref: watmath net.periphs:789 net.news.sa:124 Summary: Expires: References: <1218@cbosgd.UUCP> Sender: Reply-To: snoopy@ecrcvax.UUCP (Sebastian Schmitz) Followup-To: Distribution: Organization: European Computer-Industry Research Centre, Munchen, W. Germany Keywords: This is a point, in view of Chris' reply about the UPS for VAX. We here in Munich get thunderstorms/hail etc. a lot during summer and you usually get about 60 seconds notice before all h*ll (literally - last year we had one which caused over $300 million damage in 15 minutes [Thats what the insurances paid out and there were lots of things that was not insured...]. Hailstones the size of tennis balls available for viewing in my deepfreeze !) breaks loose and I have therefore spent many an hour over a hot console patching superblocks, copying back from archives etc. because our power supply (for the whole city !) goes "wobbly" when lightnings hit. Anyway I think that you must distinguish between a UPS and anti-lightning gizmos. We have installed a few "lightning arrestor" gadgets which stop the lightning causing peaks in our power. We found that this problem was worse than actually having a power loss - these were too short to make the system go down. These lightning arrestors cost about $40 apiece and I believe are made by Siemens which means that you should be able to get them in the US and that there should be several companies that make them. They look like big fuses (which is what they are, I guess but they don't mind power surges caused by switching everything on...) Seems to me you might just need these things if you are worried about thunderstorms... -- Love, Sebastian (Snoopy) "You haven't done it, till you've done it with pointers" \!mcvax\!unido\!ecrcvax\!snoopy /* N.B. valid csh address */