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#1
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Wire gauge for 117 VAC circuit?
Hello, in the past, my from scratch contruction has been @ 12 volts.
Now I am going to try a built from scratch tube project which uses 117 volt main xformer, also 117 v on the plate; the whole radio circuit will be fused through a 2 amp fuse. What gauge of hook up wire should I use for the project's circuitry, for safety's sake, I don't want to use too small. Thanks for any advice. WKH |
#2
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Hatfield wrote:
Hello, in the past, my from scratch contruction has been @ 12 volts. Now I am going to try a built from scratch tube project which uses 117 volt main xformer, also 117 v on the plate; the whole radio circuit will be fused through a 2 amp fuse. What gauge of hook up wire should I use for the project's circuitry, for safety's sake, I don't want to use too small. Thanks for any advice. WKH The gauge needed is not related to voltage, but to current. Once you have decided what current each winding must carry, you can choose the wire size for that current. Here is a wire table that recommends wire size versus amps that should serve. http://www.pupman.com/listarchives/1.../msg00189.html -- John Popelish |
#3
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John Popelish wrote:
Hatfield wrote: Hello, in the past, my from scratch contruction has been @ 12 volts. Now I am going to try a built from scratch tube project which uses 117 volt main xformer, also 117 v on the plate; the whole radio circuit will be fused through a 2 amp fuse. What gauge of hook up wire should I use for the project's circuitry, for safety's sake, I don't want to use too small. Thanks for any advice. WKH The gauge needed is not related to voltage, but to current. Once you have decided what current each winding must carry, you can choose the wire size for that current. Here is a wire table that recommends wire size versus amps that should serve. http://www.pupman.com/listarchives/1.../msg00189.html The wiring insulation determines the safe operating voltage -- buy wire who's insulation is rated for the voltages you want to work with. It should be readily available, so there's no reason to cut corners here. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
#4
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Hatfield wrote: Hello, in the past, my from scratch contruction has been @ 12 volts. Now I am going to try a built from scratch tube project which uses 117 volt main xformer, also 117 v on the plate; the whole radio circuit will be fused through a 2 amp fuse. What gauge of hook up wire should I use for the project's circuitry, for safety's sake, I don't want to use too small. Thanks for any advice. WKH If you are asking this sort of question, then I would seriously doubt your ability to complete a HV project without killing yourself - have you read the section "Electrical Safety" in the ARRL handbook - can recommend it as a good general text on all things electronic. The size you need is the same as nearly every mains operated appliance in your house - go to your local hardware store and buy as much as you need - dont know what current ratings you use in the USA, but 10 amps is generally more than sufficient for nearly everything. Do you know how to terminate the power plug safely , and properly wire it to the radio you are building? - it is important, and again the ARRL handbook covers such safety issues. Good luck with the project, you are starting to get into "real" radio..... 73 de VK3BFA Andrew |
#5
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On 14 Mar 2005 00:21:10 -0800, Andrew VK3BFA wrote:
Hatfield wrote: Hello, in the past, my from scratch construction has been @ 12 volts. Now I am going to try a built from scratch tube project which uses 117 volt main xformer, also 117 v on the plate; the whole radio circuit will be fused through a 2 amp fuse. If you are asking this sort of question, then I would seriously doubt your ability to complete a HV project without killing yourself - .... Especially when the OP states that he'll be using "117 v on the plate"!! Sounds like a 'design' more dangerous than the old AC/DC radios! Jonesy -- | Marvin L Jones | jonz | W3DHJ | linux | Gunnison, Colorado | @ | Jonesy | OS/2 __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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