Yeah....I think sometimes lightning does what lightning wants. And I
don't think we understand it as well as we would like to believe. We've
certainly seen incinerated surge protectors, so they do the job at least
some of the time.
I do think there was some magic in the old Canopy plastic box. There was
no electrical connection to anything except via the Cat5 with it's surge
protector. That would seem to fly in the face of R56, but we didn't
have lightning trouble with those hardly ever.
On 8/31/2020 9:47 AM, Eric Muehleisen wrote:
We had a similar situation. No amount of grounding can protect you
100%. You'll lose AP's on direct strikes. Hopefully the surges will
protect your cabinet guts.
We co-locate on a couple towers with an electric coop. They way
over-engineer all their installs. As you might expect, their grounding
policies are super strict. However, they tend to lose equipment far
more often than we do.
On Mon, Aug 31, 2020 at 8:28 AM Josh Luthman
<[email protected] <mailto:[email protected]>> wrote:
I've regularly used the 444 cards. Pretty much exclusively for
years we've been using the GIGE-APC-HV.
On a tower with 9 devices, I lost 8 of them. We've had 0 problems
on this tower since adding the surge cards almost 6 years ago. A
mix of Ubnt/Cambium. The one device that survived was a
Powerbridge (the shitty panel) with one of the old surge cards
that has an LED on it indicating power. All 8 other devices
needed to be replaced on the tower.
What should I expect the surge cards to do? I keep reading that
the card should sacrifice itself so we can just replace the card
on the ground instead of the radio on the tower - better for a 1
person fix, way cheaper, ground instead of tower, faster, etc.
The tower owner is a big Motorola R56 guy and gave us the thumbs
up with how we did the grounding.
Did I just get screwed hard for some reason? An employee of the
tower owner came out and had to fix some of their gear for their
two way Motorola radio stuff, too, so maybe it was just a really
shitty day.
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373
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