Imagine it happening in the dead of winter with ice hanging off the tower :::ARG!


On 8/13/2016 6:18 PM, George Skorup wrote:
I started hearing more and more thunder to the south (from home about 15 miles away). Alarms started going nuts. Whole tower down? WTF! Sure enough, looking at the radar showed an orange/red-ish blob over the site.

I want to say I've seen this before. It was raining for 4-5 hours straight so the ground was very saturated. Like a pond saturated. Perhaps that acts as some kind of barrier and the lightning seeks structures and utility poles more often. All I know is when we get good rains in the spring and the soil is fairly wet throughout the summer, we have a lot less damage to gear on towers. Very dry and very wet soil seems to be bad. Maybe some dielectric effect. Those are my theories anyway.

On 8/13/2016 6:04 PM, Jason McKemie wrote:
This lightning storm was an oddly destructive one. I had what appeared to be a fried PoE injector at a customer's house - the power supply and RB260GS were both OK, but the customer's router had a fried WAN port as well (fiber customer). I'm going to do some testing on the PoE injector to see if that was the problem - it did smell a bit burnt though.

On Sat, Aug 13, 2016 at 5:59 PM, Jason McKemie <[email protected] <mailto:[email protected]>> wrote:

GIGE-APC on the Mimosa. I don't have anything SS wise up-top. I'm a bit torn on whether or not that does any good, plus
    manufacturers don't like recommending anything.

    On Sat, Aug 13, 2016 at 5:55 PM, George Skorup <[email protected]
    <mailto:[email protected]>> wrote:

        The surge suppressors we have at that site are
        L-com/Hyperlinks. A couple were blown top and bottom. Another
        radio was only the top and another only the bottom. The 900
        AP board wasn't burned up, but dead. Lost that port on the
        MikroTik. Both SS's on that were dead. I'm going to rebuild
        everything at that site and use GIGE-APCs at least at the bottom.

        What SS did you have on the Mimosa?

        On 8/13/2016 5:47 PM, Jason McKemie wrote:
        Yeah, I had a Ubiquiti Rocket and some nanobridges on the
        same tower, albeit lower, that didn't skip a beat.  I go to
        all of the trouble of running dedicated power and optical,
        only to have some cheap Ubiquiti stuff outlive it - makes
        you wonder.  The surge on the Mimosa went through the SS and
        knocked out a port on my CCR - guess that will have to be
        replaced as well.

        On Sat, Aug 13, 2016 at 5:43 PM, George Skorup
        <[email protected] <mailto:[email protected]>> wrote:

            Had a 5.7 Cyclone omni and a Antel 900 omni. So we flew
            the Phantom up first to see if those antennas were
            vaporized. Surprisingly they were still there. The
            Cyclone still worked, but the timing port was dead.
            Power port timing died on it last year. 450 sectors,
            AF24 and a Force200 were perfectly fine. Some stuff and
            not others, I don't get it. It killed the inverter in
            the APC UPS. No doubt it came in on the utility after
            discovering that. And then all of the tripped breakers
            after that. Yeah, that'll be the next tower to get a DC
            UPS. And a whole panel surge suppressor.


            On 8/13/2016 5:28 PM, Jason McKemie wrote:

                I lost a SIAE radio as well as a Mimosa A5 - both
                were properly grounded, the SIAE was optical with
                dedicated power wires as well.  Also had a couple
                customer's routers get fried.  Overall, not a fun
                day.  I would rather be at Lake Shelbyville...







--

Reply via email to