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c a l a n d e
Guest
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 Posted:
Sun Jan 23, 2005 2:38 am Post subject:
Siemens Spark Gaps |
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I've recently aquired a group of Siemens spark gaps. These are EC230
which I believe have 230 volt and 5k amp ratings.
My question is what are the pratical uses for spark gaps like these?
TIA
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Kim Sleep
Guest
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| Posted:
Sun Jan 23, 2005 3:20 am Post subject:
Re: Siemens Spark Gaps |
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Absolutely...all you need to do is find a big-assed spark that needs to be
gapped.
--
Kim..."A Man Of True Frankenstinean Proportions"
"c a l a n d e" <r86calande@earthlink.net> wrote in message
news:7RyId.2809$YD5.2751@newsread3.news.pas.earthlink.net...
| Quote: |
I've recently aquired a group of Siemens spark gaps. These are EC230 which
I believe have 230 volt and 5k amp ratings.
My question is what are the pratical uses for spark gaps like these?
TIA
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Guest
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| Posted:
Mon Jan 24, 2005 4:25 am Post subject:
Re: Siemens Spark Gaps |
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c a l a n d e <r86calande@earthlink.net> wrote:
| Quote: | My question is what are the pratical uses for spark gaps like these?
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Lightning arresters.
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c a l a n d e
Guest
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| Posted:
Mon Jan 24, 2005 8:47 am Post subject:
Re: Siemens Spark Gaps |
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William wrote:
| Quote: | c a l a n d e <r86calande@earthlink.net> wrote:
My question is what are the pratical uses for spark gaps like these?
Lightning arresters.
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That's what I was thinking but I can't find any pratical information
about how this is done. It seems that if the gap is only rated at 5,000
amps its capability to arrest a direct strike is limited.
If one opens up a lightning arrester will they fine a spark gap or group
of gaps? |
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legg
Guest
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| Posted:
Mon Jan 24, 2005 10:22 pm Post subject:
Re: Siemens Spark Gaps |
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On Mon, 24 Jan 2005 02:47:16 GMT, c a l a n d e
<r86calande@earthlink.net> wrote:
| Quote: | William wrote:
c a l a n d e <r86calande@earthlink.net> wrote:
My question is what are the pratical uses for spark gaps like these?
Lightning arresters.
That's what I was thinking but I can't find any pratical information
about how this is done. It seems that if the gap is only rated at 5,000
amps its capability to arrest a direct strike is limited.
If one opens up a lightning arrester will they fine a spark gap or group
of gaps?
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I think it hardly likely that you will go to the trouble of
constructing something, just to use these gas tibe arrestors.
The parts you are talking about are two-terminals in a ceramic or
glass case. Breakdown characteristics are determined by the
composition and pressure of the internal atmosphere and by the
physical dimensions of the body.
They are correctly applied in impedance-limited applications where a
zero crossing of the applied voltage allows extinguishing of the
internal breakdown current arc (ie AC power circuits).
Older Siemens parts shouldn't be messed with, as they may contain
minute traces of radioactive isotopes. (The particular Siemens parts
being refered to are no longer manufactured)
Many vendors offer application notes.
http://www.eeel.nist.gov/811/spd-anthology/Part2Launchpage_web.htm
http://www.okaya.com/
http://www.worldproducts.com/GasTubeArresters.htm
http://www.sankosha-usa.com/gastube.htm
http://www.jensenab.se/
RL |
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