From: "Carl Gehr" Received: from [192.168.100.201] (account carl.gehr@mcgcg.com HELO localhost) by 2rosenthals.com (CommuniGate Pro SMTP 5.1.16) with ESMTPA id 2536188 for os2-wireless_users@2rosenthals.com; Sat, 13 Jun 2009 12:20:24 -0400 To: "OS/2 Wireless Users Mailing List" Date: Sat, 13 Jun 2009 12:20:11 -0400 (EDT) Reply-To: "Carl Gehr" Priority: Normal X-Mailer: PMMail 2.20.2382 for OS/2 Warp 4.5 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Subject: Re: [OS2Wireless] Re: Lightning strike Message-ID: On Sat, 13 Jun 2009 16:48:34 +0700, Jeffrey Race wrote: >Thanks to all for suggestions. AC power line is indeed likeliest >ingress. I checked and there are no overvoltage clamps on the >200 m power feed from the pole; we are at the end of the line. > >Grounding is excellent at our home (I did it myself, to ground >rods and building's rebars) but I never got to put in the big varistor >to clamp the feed; its a GE/Harris V275HE250 device rated at >20,000 amperes. We'll do it next week and It will sacrifice itself >during the next hit and blow the breakers. We'll also get after > the state electricity monopoly to install spark-gap protectors or >something. (Expected reply "If you're not happy with your >service we can disconnect it for you.) > >Among other items damaged was the APC uninterruptible >power supply. APC replaced it for us. Jeffrey, while it may not apply to you, you may want to check out "StrikeStop" - a surge protector device that fits between the service entrance and the electric meter. This URL happens to be for my local power company, but I suspect the product is available from most utilities. >http://www.duke-energy.com/energystore/strikestop-residential.asp Have fun with the local monopoly... Carl