At $10 each its probably a lot easier and safer to just replace the tube
when in doubt.  A whole new arrestor is only $25!


On 5/20/08 3:39 PM, "Chuck McCown - 2" <[EMAIL PROTECTED]> wrote:

> The way I test the surge suppressors I manufacture is to place a high
> voltage across the suppression device (such as your gas tube).  The voltage
> must be higher than the breakdown voltage of the device.  Frequently 120 VAC
> from the outlet will do.  I use a variac coupled to a step up transformer so
> I can go to 1000 volts if needs be.
> 
> You must put a current limiting resistor in series with the gas tube to keep
> from blowing a circuit breaker and damaging the gas tube.  If the gas tube
> is firing, it will have a voltage across it at whatever level the breakdown
> voltage is.  If it is not firing, the full applied voltage will be measured.
> If it is shorted, very low or no voltage will be seen.
> 
> ----- Original Message -----
> From: "Mark McElvy" <[EMAIL PROTECTED]>
> To: "WISPA General List" <wireless@wispa.org>
> Sent: Tuesday, May 20, 2008 1:15 PM
> Subject: [WISPA] Lightning Surge Suppressers
> 
> 
>> I have some Altelicon glass tube lightning surge arresters. I am trying
>> to figure out how to test then to see if they are good. I have used an
>> ohm meter to compare a new one with an old one I suspected to be bad but
>> all reads the same. The replaceable glass tube measures open on bothe
>> old and new.
>> 
>> 
>> 
>> Mark McElvy
>> AccuBak Data Systems, Inc.
>> 
>> 
>> 
>> 
>> 
>> 
>> 
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