Bill:
That is my general objective. Having surge protector strips all over
the house has not proven worthwhile. On the other hand, the
installation of whole house surge protection has proven to be much more
successful. This also takes care of switching transits cause by load
balancing by the power company.
As to protection for lightning, that's a totally different approach and
methodology. Lightning rods installed on the house, all ground rods
bonded together, copper plumbing to ground system, all services {phone,
cable, TV antenna, satellite dish and etc} connected to the bonded
ground system.
Still if there is a direct strike, as we have received, get ready to
repair and replace some stuff. Hopefully, the house is still standing.
73
Bob, K4TAX
On 1/18/2019 3:43 PM, Bill Johnson wrote:
Bob, totally agree and this is exactly what I have. Main breaker box, whole
house protection. Lightning is, of course, a whole different conversation when
it comes to direct hits. Line spikes can wear out motors, take out weak power
supplies, etc., which the suppressor will protect.
73,
Bill
K9YEQ
https://wrj-tech.com/
-----Original Message-----
From: elecraft-boun...@mailman.qth.net <elecraft-boun...@mailman.qth.net> On
Behalf Of Bob McGraw K4TAX
Sent: Friday, January 18, 2019 10:30 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 external mains switch
I have a whole house surge protector installed at the Mains breaker panel.
Thus I find no need to have individual surge protection for any of the
equipment locations in the QTH. This takes care of microwave, range, furnace,
washer, radios, TV's, entertainment systems, phone system and such.
Not sure I like or agree with the idea of a separate mains switch. If for
remote purposes, remember when turning off the amp via the front power switch,
one must allow the voltage to bleed down before shutting off the main power
switch on the rear. {Per the manual} This would seem to be true with an
external switch.
I've assisted many hams with issue resolution only to find out they have and use a "big
switch" or otherwise to shut down the station. This IS NOT a good idea as many/most
microprocessor circuits have provision to save data before shutting down equipment. Thus if one
uses a "big switch" it kills the DC source thus the processor does not have the
opportunity to save the data status. As to what's left......., sometimes scrambled data, and
that's where the issues arise.
73
Bob, K4TAX
On 1/18/2019 10:11 AM, Macy monkeys wrote:
Is anyone in the US using a separate 220v external mains switch on their
KPA500? I'm wondering where these are available. Or is anyone using a 220 v
surge protector? Are these available for the NEMA 6-15 plug?
John K7FD
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