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High Voltage Test Equipment
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To: "'Tesla List'" <tesla@pupman.com>
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Subject: High Voltage Test Equipment
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From: Tesla List <tesla@stic.net>
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Date: Sun, 8 Mar 1998 16:37:20 -0600
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Approved: tesla@stic.net
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From: Malcolm Watts [SMTP:MALCOLM@directorate.wnp.ac.nz]
Sent: Sunday, March 08, 1998 3:39 PM
To: Tesla List
Subject: Re: High Voltage Test Equipment
Hi Terry,
> From: terryf@verinet.com [SMTP:terryf@verinet.com]
> Sent: Thursday, March 05, 1998 11:21 PM
> To: Tesla List
> Subject: Re: High Voltage Test Equipment
>
<snip>
> >
> >
>
> Hi Jim,
>
> My latest voltage divider is 1 inch long! I thing you and I will
> have the length extremes covered :-)) 1/8th watt surface mount resistors
> are typically rated for 400V max. However, in oil, I would push that to
> 4KV! (I used to build the damn things).
The voltage ratings associated with film resistors has to do with
internal arcing ruining the resistive material, not flashover
voltages or heating. I am currently getting in a rash of monitors for
repair with the same problems (all the same make surprise surprise!)
because as with so many designs, they have used a single 1/2 W
resistor to provide starting current for the SMPS from a 330V rail. I
am kept employed by people who use these techniques :)
Malcolm