Re: Hv probe for lifter project (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Mon, 25 Oct 2004 08:34:39 +0800
From: Peter Terren <pterren1@xxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Hv probe for lifter project (fwd)

I would feel uncomfortable holding anything connected to 50KV so I am not 
really keen on the HV probe style.  If your earth connection comes off then 
you get 50kV at 50uA at the end.
My stand alone meter seems to work well and measures peak AC.  It has ranges 
of 1kv, 10kv and 100kv.  It is no good at flyback frequencies for AC but 
50Hz seems fine. It works well to 50 - 60kv but the resistor chain will tend 
to arc over at perhaps 80kv and needs better spacing.
http://tesladownunder.iinet.net.au/Other_HV_stuff.htm#Voltmeter

Peter

>> ---------- Forwarded message ----------
>> Date: Thu, 21 Oct 2004 19:45:59 -0500
>> From: Adam Britt <Beans45601@xxxxxxxxx>
>> In regards to my last post about my lifter project, i am getting a
>> large flyback from Dr. Res and a tripler, so i am set for power
>> supplies. But, Now i am going to need a HV probe. I have a 10' x.5"
>> piece of PVC pipe around my house, and if i put a bolt in one end, and
>> one in the other, and fill it with water, will that be enough
>> resistance for a HV probe? If not, what other liquid (that is commonly
>> available) could i use to give me enough resistance?
>>
>> Thanks
>> -Adam