>
>Dennis A. Homerick wrote:
>>
>> Solid state relays have leakage current. Therefore disconnect from power
source
>> before inserting hands. Good advice also with conventional relay. Almost
lost my
>> life across a 3 phase 480vac solid state switch.
>
>The design has a 25-amp 250v DPST toggle switch as a safety switch first.
>Then the relay will be controlled by a couple of smaller toggle switches,
>interlock, etc. in series. My practice is always to remove the plug when I'm
working
>inside an amp anyway.
? excellent
> I've heard lots of stories of conventional relays
>failing to open due to welded contacts, etc. There's also going to be a
shorting
>stick hanging inside the rack and a hook for it on the HV filter cap.
>
? putting a 100 to 500 ohm, 100w resistor in series with a shorting stick
might avoid damaging the amplifier.
- later, Vic
Rich...
R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
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