[Swansea Hackspace] Isolating Solid State Relay

[Neil Jones]

On 28/09/2020 16:38, Alan Cox wrote:
> On Mon, 28 Sep 2020 15:55:41 +0100
> Ceri Clatworthy <ceri.clatworthy at gmail.com> wrote:
>
>> Should really be EARTHED !!!!!!
>>
>> especially for TESTING.
>>
>> Medium Aluminium box
> Ditto for noise reduction unless the SSR being used is a zero cross
> switching SSR (these only switch when the AC is at the crossing point so
> avoiding noise spikes from chopping a 300v+ peak to zero fast)
>
> Alan

Thanks Ceri and Alan. I hadn't thought about the noise issue.  I had 
come across zero cross switching as it is an issue for control by rapid 
switching PWM stuff but it isn't a concern for me. That is very useful.

Neil