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4hv.org :: Forums :: Sale and Trade
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Wanted: 4 AWG Wire

1 2 
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Eric
Wed Jul 26 2006, 04:52AM Print
Eric Registered Member #69 Joined: Thu Feb 09 2006, 07:42AM
Location:
Posts: 116
Looking for solid conductor, bare or insulated, in like-new shape. I need about 100ft.
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Sulaiman
Wed Jul 26 2006, 08:27AM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
Have you considered copper tubing/pipe ?

P.S. Copper prices are increasing rapidly, look for a plumber's supplier with old stock

P.P.S. With patience (lots) you can insulate with pvc tubing (aquarium air tubing etc.)
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Eric
Thu Jul 27 2006, 12:14AM
Eric Registered Member #69 Joined: Thu Feb 09 2006, 07:42AM
Location:
Posts: 116
I need it to be a certain diameter (5.2-6.0 mm) for my project and I'd like it to not be pipe since that alloy of copper is about 85% the conductivity of wiring copper. And hollow. wink
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Self Defenestrate
Fri Jul 28 2006, 06:39PM
Self Defenestrate Registered Member #87 Joined: Thu Feb 09 2006, 01:36PM
Location: San Jose
Posts: 191
What do you need it for? OSH sells up to 4awg, but its something like 3$ a foot.
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Eric
Fri Jul 28 2006, 10:22PM
Eric Registered Member #69 Joined: Thu Feb 09 2006, 07:42AM
Location:
Posts: 116
I'm making a largish transformer. I know I can get the stuff at hardware/building supply stores but that cost is too much. That's more than 7 times the intrinsic copper value, not gonna do it.
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Sulaiman
Fri Jul 28 2006, 10:59PM
Sulaiman Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
Not sure about the application but
you can use as many strands of thinner wire as necessary
twisted together in parallel to make up the required copper area.
e.g.
1 x 4 awg
or
2 x 7 awg
4 x 10 awg
8 x 13 awg
etc.
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dan
Fri Jul 28 2006, 11:13PM
dan Registered Member #223 Joined: Mon Feb 20 2006, 06:42PM
Location: Ottawa, Ontario, Canada
Posts: 125
I have seen several mains step-down transformers that use several smaller wires in parallel to form a low voltage high current secondary. I have also seen a similar configuration inside a ferrite transformer from a PC PSU. So it should be doable.
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Quantum Singularity
Sun Jul 30 2006, 04:22AM
Quantum Singularity Registered Member #158 Joined: Sun Feb 12 2006, 09:53PM
Location: Central Ohio
Posts: 282
Do you have Lowes in your area? They have solid #4 and its generaly cheaper than your local hardware store. I bought some solid #6 there years ago and it was the best deal I could find at the time.
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Steve Ward
Sun Jul 30 2006, 05:36AM
Steve Ward Registered Member #146 Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
Unfortunately, it seems the cost of wire has just about *trippled* at all my local stores (home depot, menards, lowes). They all seem to have the same prices now. I couldnt believe it when i saw the price of a 500' spool ot 10awg at $100 amazed . 100' of 4 awg is gonna make your wallet hurt if you try to buy at a home improvement store.

Good luck!
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Eric
Sun Jul 30 2006, 06:14PM
Eric Registered Member #69 Joined: Thu Feb 09 2006, 07:42AM
Location:
Posts: 116
Yeah it's pretty rough. Commodity metals prices have tripled (or more) in just a few years.

Copper Prices

I have found a place that says they'll sell it for 0.55 per foot for 100ft. which is far and away the best I've seen, so I think I'll go with them. The copper itself is worth .44 per ft so I think that's the best I can find retail.

Thanks for the suggestions guys.
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