On a sunny day (Thu, 17 Jan 2019 08:51:16 +0000) it happened Ahem A Rivet's
Shot  wrote in
:

>On Thu, 17 Jan 2019 07:54:05 GMT
>Jan Panteltje  wrote:
>
>> On a sunny day (Thu, 17 Jan 2019 06:24:26 +0000) it happened Ahem A
>> Rivet's Shot  wrote in
>
>> >        Neither do I provided they are used in such a way that the power
>> >source and PSU do not move relative to each other. A flying lead to a
>> >plug on the wall would be erm, foolish, as would using a PSU like that
>> >without some kind of outer casing.
>>
>> You mean like this?
>>  http://panteltje.com/pub/h501s_drone_remote_power_lab_test_IMG_6271.JPG
>> 
http://panteltje.com/pub/h501s_drone_remote_power_test_ground_control_1_IMG_627
6.JPG
>
>        Yeah lab benches are the only place, not because it's safe but
>because you know it isn't and the occasional belt is an occupational hazard
>that you learn to avoid with (hopefully not too much[1]) experience.
>
>[1] A colour monitor anode supply was once nearly too much experience,
>fortunately a manager[2] was between me and the wall three feet behind, he
>went off muttering something about insurance.
>
>[2] See they're good for something.

I worked in a TV studio for many years, also in TV repair.
The danger was taking a CRT out (after discharging the HV),
it then slowly builds up voltage again [1], and if you got bitten while holding
it in your hands
dropping it would cause an implosion and glass pieces would pierce you.
We had an CRT implode all by itself, colleague heard
a funny ticking noise, and decided that that was a good moment to go get
coffee,
when he came back the pieces of glass were sticking in the 1 inch thick metal
armed soundproof studio door.
Handling CRTs I have learned to control the 'drop it' reflex.
Been bitten by that direct 25 kV several times, step aside, break contact.

[1] possibly electrons moving via the aquadag layer, capacitors do that too
sometimes.

[2] https://en.wikipedia.org/wiki/Aquadag

Anyways, raspies are safe :-) LCDs are sort of safe (if LED backlight) as far
as HV goes.

I still have a color CRT monitor in the attic, colors are better than LCD IMO,
no burn in either.

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