I still don't get it (maybe because I am dumb). At my service entrance is
a protector that connects has two MOVs, one from each leg to ground. Ground
in this case is the same as neutral At the water pump is also a protector
that has MOVs frm the two legs (the pump is a 240 V pump) and ground. In the
shack I have a protector that connects MOVs from neutral AND the hot 120 V
leg to ground. It also incorporate a protecting circuits for my phone, it
has two gas discharge tubes between the line and ground.
Should I disconnect al MOVs that are connected to ground ??? As I wrote to
you earlier, my house has had two registered lightning hits (and possible a
couple of more we don't know about) and everything survived.
Can anyone describe the failure mode that makes the MOV from the hot leg to
Hans - N2JFS
In a message dated 3/19/2010 1:33:50 P.M. Eastern Daylight Time,
I don't know "the Soft-Start kit" or it's application, so I can't comment
what I've said here. But MANY products are designed with serious
mistakes. The "pin 1 problem" is a glaring and very common example -- it
hum, buzz, and RFI. Putting an MOV between line and safety ground is
-- it can blow up equipment! The only safe place for an MOV (or other
protector) in the power system is at the main service entrance where power
into the building from the street. This is the so-called "whole house"
and it's a very good idea if done well.
On Fri, 19 Mar 2010 17:22:37 +0000, RICHARD SOLOMON wrote:
>Are you saying we should not use the ones that come with the Soft-Start
>73, Dick, W1KSZ
>> From: firstname.lastname@example.org
>> To: email@example.com
>> Date: Mon, 15 Mar 2010 22:50:45 -0700
>> Subject: Re: [TowerTalk] Shack wiring
>> On Mon, 15 Mar 2010 21:34:10 -0400, firstname.lastname@example.org wrote:
>> >A good surge protector has three MOVs, one from each leg and one
>> >the legs.
>> WRONG! An MOV from Phase (hot) to Ground (Green Wire) is more likely to
>> UP equipment than protect it. To understand this, see my earlier post
>> Jim K9YC
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