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Re: SSTC CW Coils and Hazards



Original poster: "Jim Lux by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>


 > Original poster: "Mccauley, Daniel H by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>
 >
 >
 >
 > Low frequency RF emissions have been the subject of debate on this group
 > for some time now.  It seems the few who have participated in this
 > discussion (See archives for past discussions) appear not to be too
 > concerned about the low frequency (100s khz) RF emissions, however I
 > myself am not convinced.

About what are you not convinced? The analysis of the field strengths? The
biological effects?

  Although the primary concern for these
 > frequencies is I*R heating, there must be some hazard associated with it
 > especially considering the close proximity one is in when operating
 > these coils.

Heating and burns ARE the hazard, in my opinion.  Unlike the usual spark gap
coil, CW coils (tube and SS) may also tend to make one get into situations
where burns can occur. They're quieter and less "scary" looking/sounding,
although the hazards are still there, so one might get closer without
realizing it.

 >
 > I guess until concrete information regarding this is determined, common
 > sense should dictate your actions around these coils.

What concrete information are you looking for? RF measurements or
bioeffects?  The former is easy (relatively speaking).