=?iso-8859-1?Q?Insulation_of_HBT=B4s?=

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• Subject: =?iso-8859-1?Q?Insulation_of_HBT=B4s?=
• From: RWB355-at-aol-dot-com (by way of Terry Fritz <terryf-at-verinet-dot-com>)
• Date: Wed, 07 Oct 1998 17:20:25 -0600
• Approved: terryf-at-verinet-dot-com

Hi All,

Someone wrote he wouldn´t use PE for insualtion because it would melt.

I sort of have to agree/disagree with this. First of all PE only melts at
temperatures above 100°C. If your xformer gets hotter than this, you will
start cooking the Formvar on the wire. I think a safe xformer temp would be
around 75°C.

 My insulation scheme is paper-PE-paper. This helps the oil wick up and sort
of protects the PE from coming into direct contact with the windings should
they get hot.


Coiler greets from germany,
Reinhard

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