Re: PE covered secondary (fwd)

---------- Forwarded message ----------
Date: Tue, 21 Apr 1998 16:18:45 +0500
From: "Alfred A. Skrocki" <alfred.skrocki-at-cybernetworking-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: PE covered secondary

On Monday, April 20, 1998 7:32 PM Dan
[SMTP:Boombast99-at-aol-dot-com] wrote;

> Why couldn't you just cover a PVC secondary with 30mil PE (2 layers) and hot
> melt glue the PE to the PVC instead of all the time consuming coatings with
> various varnishes...........?

The varnishes provide two functions; firstly it fixes the position of the 
wire and prevents it from unravelling off the PVC tube. Secondly it 
increases the dielectric strength between windings and thus decreases 
coronal losses. Applying Polyethylene in the manner you described would not 
supply either of these conditions! Perhaps if one could shrink wrap the 
coil in Polyethylene film it may work, but that would seem to be more 
difficult than painting the coil with a varnish.


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