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hook up wire question
hook up wire question
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Old 17th November 2002, 02:00 AM   #1
TubeHound is offline TubeHound  United States
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Default hook up wire question


Can you take, say two 20awg, twist them together and make a wire that can handle higher voltage,current? Is this possible. reason I ask is I bought some silver wire and teflon shrink that I would like to use for this purpose. Are there cons to doing this? Voltages for my project range from tube filament volts to B+ of 425v.
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Old 17th November 2002, 03:53 PM   #2
MRehorst is offline MRehorst
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Yes, two wires in parallel will handle about twice the current of either of the wires alone. If you leave the insulation on the wires when you twist them together, you will also reduce the inductance by half.

Parallel wires will NOT handle higher voltage. Voltage ratings are determined by the insulator thickness alone. Every teflon insulated wire I have ever seen had a voltage rating of at least 600V.

It is not a good idea to parallel two unequal gauge wires if you will be running them at more current than the thinnest wire is rated to handle.

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Old 18th November 2002, 03:12 AM   #3
dkemppai is offline dkemppai  United States
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Location: Michigan, USA
Default Wire voltage...

A lot of wire is rated for 600V... ...findint wire for 450V should not be a problem, but it may become a little spendy.

If you want some high voltage wire, tear apart an old TV or computer monitor, and use the high voltage wire from the tube to the flyback. that stuff is really high voltage (the flyback ususlly generates around 25KV). If you do, just be sure the tube is discharged first... ...if in doubt, short it to ground.

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