Re: electrically insulating varnish (fwd)

["High Voltage list" <hvlist@xxxxxxxxxx>]

Original poster: Steven Roys <sroys@xxxxxxxxxx>



---------- Forwarded message ----------
Date: Tue, 23 May 2006 14:49:19 EDT
From: Mddeming@xxxxxxx
To: hvlist@xxxxxxxxxx
Subject: Re: electrically insulating varnish (fwd)

 
In a message dated 5/23/06 11:10:15 A.M. Eastern Daylight Time,  
hvlist@xxxxxxxxxx writes:

A  spacewound resonator is an obvious application that requires no 
wire  coating.

Malcolm






Hi Malcolm, Tim,
 
    If going space-wound with bare wire, one should  consider the following:
 
The inter-turn potential difference (dv/dx) is on the order of  2000  
volt/turn.
This implies a minimum spacing of 1 mm in free air, and 2 to 3 mm surface  
distance to avoid so-called "surface creep".