Wire Insulation Thickness

• To: "'Tesla List'" <tesla-at-pupman-dot-com>
• Subject: Wire Insulation Thickness
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Wed, 27 May 1998 23:17:43 -0500
• Approved: tesla-at-stic-dot-net

----------
From:  Jim Lux [SMTP:jimlux-at-earthlink-dot-net]
Sent:  Wednesday, May 27, 1998 12:43 PM
To:  Tesla List
Subject:  Re: Wire Insulation Thickness

Tesla List wrote:
> 
> ----------
> From:  Hollmike [SMTP:Hollmike-at-aol-dot-com]
> Sent:  Tuesday, May 26, 1998 3:10 AM
> To:  tesla-at-pupman-dot-com
> Subject:  Re: Wire Insulation Thickness
> 
> Gary,
>    I have one source of info that says the enamel can handle 450v/mil.  It
> might depend on the manufacturer as to what thickness is available on the
> wire.
>    I agree with your idea of spacewinding a coil.  It would result in lower
> inductance, but also would greatly reduce the self capacitance of the coil.

I don't think space winding decreases the self C. Consider the C between
successive turns. Now you will have half as many turns with half the
interwinding C in series, which is the same total C as before.  Think
also of the Medhurst formula, which essentially considers the whole
thing as a conducting cylinder.

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