Re: [TCML] Why is it important to dry the PVC pipe?

[Sfxneon@xxxxxxx]

PVC is hygroscopic and absorbs moisture, which increases the chance  for arc 
overs. Any piece of HV gear needs to be dry, inside and out before using  it.
 
Tony Greer
 
 
In a message dated 9/25/2008 6:00:26 P.M. Central Daylight Time,  
david.b.ellstein@xxxxxxxxx writes:

Hi,

I am trying to build my own secondary coils for a Tesla  Coil.  I am using
PVC pipe.  I have seen on multiple websites the  suggestion or even
requirement to dry the PVC pipe before applying your  first varnish coat.
Why is it important to dry the pipe when the wire  coiled on it is
insulated?  Does the pipe heat up during the use of it  as a tesla coil and
so the water expands and contracts causing holes in the  varnish?  Also, how
do you recommend to clean the PVC pipe before  applying varnish?  Lastly, do
you have any suggestions on how to wind  the coil without a lathe?  Or how to
build a simple lathe maybe even  using a power drill?

I hope to hear from  you,
David




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