There is some protection to AC surges, look here:
http://www.deltasurgeprotectors.com/products.cfm?sortit=1&Category=Lightning%20Arrestors
I have one on my service entrance. Does it work? I can't prove that, but
anecdotal evidence seems to indicate it does. Some years ago a direct hit on a
house in the next block caused a fire. I know of a TV and a control board in a
dish washer that were fried, one next store and another across the street.
There may have been more that I'm unaware of. I'd like to think it worked here
though.
It boils down to risk assessment too. That is a personal decision. I've got 50
years of motorcycling and know others that would never get on one because they
are so dangerous.
73,
Bob
K2TK ex KN2TKR (1956) & K2TKR
On 7/15/2014 5:19 PM, Buck - k4ia via Elecraft wrote:
I have had several instances of nearby impulse damage and surge voltage on the
AC line. It could have been very expensive but for insurance.
I would put in a plug for either the ARRL or Ham Radio Insurance Associates
equipment insurance. HRIA will cover up to $5000 in losses for $136/yr
including Mechanical Breakdown. The two policies are very different so review
them to decide which is best for you.
If you love your K Line as much as I do, you'll get it insured.
Buck
k4ia
On 7/15/2014 6:58 AM, Bill Blomgren (kk4qdz) via Elecraft wrote:
And another warning: Nearby (like next door) lightning will be picked up by
ANY long wires which end up acting as antennas.
I did computer repair in Florida. I had a time share/multitasking system in
a law office that had thousands of dollars in damage after the building next
door got hit.
The terminals were plugged into serial lines back to the central system. So
were the printers. (Think: 6 processor unix type system with a network inside
the box)
The tops of ICs were all over the guts of every printer, terminal and the
computer let out the magic smoke. ALL of the terminals and printers had been
"unplugged" - but not from the RS232 connections.
The ONLY way to isolate the rig is totally unplug the thing: antennas, power
supplies and so on... same with your computers.
Down in Florida, there are code required surge MOV's in every circuit breaker
panel. All they do is eliminate something close by. They get vaporized by a
direct hit.
KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them!
________________________________
From: Keith Trinity WE6R <ke...@elecraft.com>
To: elecraft@mailman.qth.net
Sent: Monday, July 14, 2014 8:19 PM
Subject: [Elecraft] Unhook *ALL* connections before Lightning storm
Hi all, I work on K3's all day and would like to advise/remind folks
that lightning comes in through ANY path it pleases, not just the antenna.
Time and time again folks say they unhooked their antenna but the
lightning took out the DSL modem, computer and K3 via the RS232 port!
Anything connected is a potential path...
Be safe! '73
Keith WE6R
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