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1. [Amps] Air gap for 12000 volts? (score: 1): Author: wy6k@yahoo.com (WYsixK); Date: Sat, 20 Apr 2002 13:55:03 -0700 (PDT); What spacing do I need between capacitor plates (air dielectric) for 12000 volts and where can I find tables for this stuff? Thanks! Michael __________________________________________________ Do You; /archives//html/Amps/2002-04/msg00501.html (8,716 bytes)
2. [Amps] Air gap for 12000 volts? (score: 1): Author: bobs@isquare.com (Bob Sullivan); Date: Sat, 20 Apr 2002 17:37:38 -0400; Michael, Air breaks down at about 20v/mil (.001) so for 12000 volts you need spacing of a least .6 inches. i.e., you need a BIG capacitor. Most editions of the ARRL Handbook have this info. 73, Bob W; /archives//html/Amps/2002-04/msg00503.html (9,039 bytes)
3. [Amps] Air gap for 12000 volts? (score: 1): Author: w8ron@stratos.net (Ron); Date: Mon, 22 Apr 2002 21:47:22 -0400; My understanding is that air breaks down at 20,000 v /cm. Not sure what temp or RH. -- Ron; /archives//html/Amps/2002-04/msg00511.html (9,214 bytes)
4. [Amps] Air gap for 12000 volts? (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Mon, 22 Apr 2002 06:43:50 -0700; ? Altitude counts too. When in doubt, use a high-potential tester. cheerz, Ron - R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, www.vcnet.com/measures. end; /archives//html/Amps/2002-04/msg00512.html (8,174 bytes)
5. [Amps] Air gap for 12000 volts? (score: 1): Author: w2fca@cs.com (w2fca@cs.com); Date: Mon, 22 Apr 2002 10:21:17 -0400; If you check www.cardwellcondenser.com you'll find specs for their caps at various voltages. They don't go to 12kv but they list a gap of .250 for 9kv. Frank W2FCA; /archives//html/Amps/2002-04/msg00513.html (7,179 bytes)
6. [Amps] Air gap for 12000 volts? (score: 1): Author: w1nr@eecorp.com (Mike McCarthy, W1NR); Date: Mon, 22 Apr 2002 11:06:01 -0400; That information used to be in the Handbook. It was under dielectric properties of capacitors in one of the introductory chapters. I don't recall if the table went to 12000V, but I think I remember a; /archives//html/Amps/2002-04/msg00515.html (8,197 bytes)
7. [Amps] Air gap for 12000 volts? (score: 1): Author: dcoolica@planet.eon.net (Denis Coolican); Date: Tue, 23 Apr 2002 00:36:00 -0500; talking about 20 kV. For 20 KV I would have a lot more clearance than 1 cm. Now maybe you do not have HV across the capacitor. If it is the plate tune capacitor you will have a coupling capacitor th; /archives//html/Amps/2002-04/msg00528.html (9,269 bytes)
8. [Amps] Air gap for 12000 volts? (score: 1): Author: Wt8r@aol.com (Wt8r@aol.com); Date: Tue, 23 Apr 2002 08:00:30 EDT; My research reveals that the breakdown of air is 20,000 volts/inch NOT cm. 73 de Dave, WT8R -- StripMime Report -- processed MIME parts -- multipart/alternative text/plain (text body -- kept) text/ht; /archives//html/Amps/2002-04/msg00529.html (7,300 bytes)
9. [Amps] Air gap for 12000 volts? (score: 1): Author: kimba@sprint.ca (Bert Barry); Date: Tue, 23 Apr 2002 09:50:29 -0400; What's an 'inch' ?? Bert, VE3QAA; /archives//html/Amps/2002-04/msg00531.html (7,158 bytes)
10. [Amps] Air gap for 12000 volts? (score: 1): Author: w8ron@stratos.net (Ron); Date: Wed, 24 Apr 2002 04:44:31 -0400; Hi Dave. My comment is that air breaks down at 20 KV/cm meaning that there would be an arc over at that field strength. I didn't look it up but it happens to be one of those goofy things that sticks; /archives//html/Amps/2002-04/msg00532.html (8,284 bytes)

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