UV-light can cause irritation (or "burning") of the skin at
intensities far below what can be detected by UV-sensitive markers.
It's just a matter of how long you are exposed to it.
Maybe you could try a good "sun-block" cream (the ones you use when
going to the beach in summer) on you face.
If it is UV that causes the rash: glass blocks UV rather effective. It
would stop teh UV while still allowing visual control of the coil.
Rik ON7YD & OR7T
Citeren Marek SQ5BPM <[email protected]>:
> Hello Peter,
> Peter Martinez wrote:
> >> From Peter G3PLX:
> > Marek:
> > The 'rash' or 'burning' effect makes me think of sunburn or
> > to ultra-violet light.
> > Could it be that there is some ionisation, perhaps due to high
> > voltages, which gives off UV radiation which could affect the skin
> > the face if it's directly in front of the operator? It would be
> > to test this idea by operating the equipment in a low light level
> > probing the area with a some object that was known to be
> > like a UV-sensitive marker pen.
> I thought about something connected with the high voltage as well -
> maybe high electrostatic field etc. I didn't know that ionisation may
> cause UV radiation. I will check the idea, placing a banknote near
> coil output ;)
> The UV idea makes sense, the rash appeared on the side of my face
> in direct 'exposure' to the coil, not at the side of the
> 73! Marek SQ5BPM