I looked at a Transtector unit a few weeks ago. It's an isolation transformer that sits outdoors between the entrance panel and our internal electrical system. It was roughly $1K for the unit. Kind of wish I would have bought it now. We are the end of the line on the power grid and have 1-3 days of outages multiple times a year, that's the real reason for the battery solution; that and we are tired of generators.
Your right though. Most cell and radio towers I visit have just that, an isolation transformer at the entrance panel. Thanks, Dave [email protected] wrote: > Since it sounds like this came in on the AC, how about a surge protector > on incoming AC line? We've had sites where the power company's grounding > is so bad we've lost power supply surge protectors in just about every > storm that comes through the area...until we put surge protection at the > breaker box. Now all is good. > > Cameron > > >> Don't feel too left Chuck out we lost a tower site in the same storm. >> Second time in seven years a total loss. Both times we've lost our gear >> it has come via the electrical side. Our tower gets hit by a strike or >> two almost every storm and we never have issues. This time it literaly >> blew the entrance panel off the side of the building and outlets off the >> walls of the building. Cracked one of the APC batterty units, every >> ethernet surge suppressor and every grounded POE injectors were blown >> apart. Interesting that our four coax arrestors were okay, but the gear >> was cooked. Most of the cat5 ends included. Had spare gear on the >> tower plugged in at the radios but dangling in the building, we fired it >> up and were in operation within a few minutes. Took another 16 hours to >> get all of the damage cleaned up. >> >> We have on that site forty-five 3/4" ground rods in two concentric >> circles around the tower and building none more than eight feet apart; >> all interconnected with #2 bare stranded wire and cad welded. Inside the >> building - a halo ring and 3 1/2" copper strapping, the list goes on and >> on for what we have done to minimize issues. We spent nearly 5K on >> grounding and still lost it all. >> >> We are moving to total battery power next week. I am looking for >> something I can use to isolate a smart charger from the power company >> when we see storms in the area, I expect we will have enough battery for >> a minimum 3 days runtime. Some type of relay that we can control >> remotely I would guess. >> >> If it makes you feel any better Verizon Wireless took total loses on >> four towers between Cincinnati and Louisville Tuesday as well. >> >> Dave Hulsebus >> Portative Technologies, LLC >> >> Chuck Hogg wrote: >> >>> Has anyone been able to withstand a direct lightning strike? We had a >>> tower get hit last night, and some of our equipment lost Ethernet ports >>> (RB/433AH), and we lost 3 canopy APs, but that is all (considering what >>> is all up there only 2/3rds was blown). Our Trango AP survived and a >>> RB/433AH survived. Even Nextel had their guys out there, but they just >>> had to reset alarms it appears as nothing was "fried" on their end. I >>> wish I had to just reset alarms. >>> >>> >>> >>> So tell me, what do you do ? I'm tired of dumping a few grand during big >>> lightning storms. >>> >>> >>> >>> I do the basics, Ethernet surge suppression up top and on the bottom, >>> Polyphasers, ground out to the ground bars, ground out the cat5 cable, >>> and no omni's. >>> >>> >>> >>> Regards, >>> >>> Chuck Hogg >>> >>> Shelby Broadband >>> 502-722-9292 >>> [email protected] >>> >>> http://www.shelbybb.com >>> >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> WISPA Wants You! Join today! >>> http://signup.wispa.org/ >>> -------------------------------------------------------------------------------- >>> >>> WISPA Wireless List: [email protected] >>> >>> Subscribe/Unsubscribe: >>> http://lists.wispa.org/mailman/listinfo/wireless >>> >>> Archives: http://lists.wispa.org/pipermail/wireless/ >>> >>> >> -------------------------------------------------------------------------------- >> WISPA Wants You! Join today! >> http://signup.wispa.org/ >> -------------------------------------------------------------------------------- >> >> WISPA Wireless List: [email protected] >> >> Subscribe/Unsubscribe: >> http://lists.wispa.org/mailman/listinfo/wireless >> >> Archives: http://lists.wispa.org/pipermail/wireless/ >> >> > > > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: [email protected] > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
