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Re: uv dangers from uncovered gap
Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>
a few problems...
1) Not much microwave radiation from a spark...
2) "fusing the contact to the cornea" turns up in lots of urban legends
Arc blindness/snow blindess IS real (been there done that..painful (like
sand in your eyes, but worse)), but I think that fears of cooking corneas
are unfounded.
The connection of "fused contacts" and "microwaves" makes me thing urban
legend.
On the other hand, if the original source cited a specific instance, with
time/date/victim, etc. I'd be more likely to believe it.
Tesla list wrote:
>
> Original poster: "Robin Copini by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <rcopini-at-merlin-dot-net.au>
>
> Hi all,
>
> Just reading through another computer magazine, and found this very
> interesting article. I will copy here verbatim.
>
> Electric Arcing.
>
> Arcing generates ultra violet radiation which causes skin damage akin
> to severe sunburn. Molten metal particles from the arc can penetrate,
> burn and lodge in the flesh. These effects are additional to any
> radiated heat damage caused by the arc. Further effects of arcing can
> easily be overlooked and an illustration of this has been where the
> recipient of arcing has been wearing contact lenses with the following
> consequences:
>
> 'An electrical worker threw an uncovered electrical switch into a
> closed position resulting in an electrical spark'.
>
> 'A welder threw open his protective face shield to better position a
> welding rod, the rod contacted metal and produced a spark'.
>
> Nothing particularly unusual about these occurrences except both men
> were wearing contact lenses. On returning home they removed the contact
> lenses and the cornea of the eye was removed along with the lens. The
> result was instant blindness! An investigation revealed in both cases
> the electrical arc generated microwaves that had dried up the fluids
> between the eye and the contact lens. The trauma is painless and the
> individuals never knew the injury had occurred until they had removed
> the contact lens along with the cornea. Clearly, therefore, it may be
> very unwise to wear contact lenses when considering any electrical
> testing or commissioning activity.
>
> end quote.
>
> Now I am far from an expert in this, but I do demonstrate my coil to
> those that ask to see it, and although I always ask concerning implants
> etc I have never considered the above scenario. Considering my gap is
> literally 'sunlight' bright when running, and considereing proximity
> issues, could someone please tell me whether the above is cause for
> concern?
>
> Best Regards
>
> Robin Copini.