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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Shop\-talk\]\s+Is\s+this\s+really\s+true\s+\?\?\s*$/: 9 ]

Total 9 documents matching your query.

1. [Shop-talk] Is this really true ?? (score: 1)
Author: "Karl Vacek" <kvacek@ameritech.net>
Date: Thu, 10 Dec 2009 19:08:19 -0600
Today's Hemmings weekly newsletter had the following article on a new copper-coated aluminum battery cable material from Accel. The aluminum cable is said to conduct as much current as a similar gaug
/html/shop-talk/2009-12/msg00057.html (9,034 bytes)

2. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: John Innis <jdinnis@gmail.com>
Date: Thu, 10 Dec 2009 20:07:12 -0600
DC current flows primarily through the surface of a conductor, AC current through the center of a conductor. My biggect concern with this stuff is that Aluminum can become brittle when subjected to v
/html/shop-talk/2009-12/msg00059.html (10,565 bytes)

3. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: "Randall" <tr3driver@ca.rr.com>
Date: Thu, 10 Dec 2009 18:36:19 -0800
Sounds like snake oil to me. There is a skin effect with RF current; but not with DC AFAIK. And even the RF skin effect doesn't apply to strands that are in contact with each other. That is to say, s
/html/shop-talk/2009-12/msg00062.html (7,515 bytes)

4. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: "Peter J. Thomas" <pj_thomas@comcast.net>
Date: Thu, 10 Dec 2009 21:42:06 -0500
It does, but not as much as you would expect. As electrons flow through wire they repel each other, just like two north poles on magnets, pushing to the surface. This effect is why your car is the sa
/html/shop-talk/2009-12/msg00063.html (10,366 bytes)

5. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: Brian C Kennedy <kennedybc@comcast.net>
Date: Thu, 10 Dec 2009 22:10:54 -0500
Well, you learn new physics every day! It's certainly true that there is a "skin effect" at high frequencies, but battery current is not high frequency. Brian K ______________________________________
/html/shop-talk/2009-12/msg00064.html (9,598 bytes)

6. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: "Karl Vacek" <kvacek@ameritech.net>
Date: Thu, 10 Dec 2009 21:46:11 -0600
Indeed, I've long heard of "skin effect" in antennas, but never heard of it in electrical power transmission. 12-gauge stranded wire is rated the same as 12-gauge solid, so it sounded like BS, but I
/html/shop-talk/2009-12/msg00065.html (9,279 bytes)

7. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: "old dirtbeard" <dirtbeard@pacbell.net>
Date: Thu, 10 Dec 2009 20:42:03 -0800
Years ago I worked as a linesman for the railroad in Michigan (the Grand Trunk Railroad, a subdivision of the Canadian National). For all of the pole line AC wiring, it was copper clad steel core (co
/html/shop-talk/2009-12/msg00066.html (12,095 bytes)

8. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: "Randall" <tr3driver@ca.rr.com>
Date: Fri, 11 Dec 2009 07:57:08 -0800
It's significant even at 60 Hz if the wire is large enough. Good write-up at http://en.wikipedia.org/wiki/Skin_effect gives the skin depth as about 1cm @ 60Hz, less than .0001cm @ 10GHz. Randall ___
/html/shop-talk/2009-12/msg00067.html (8,070 bytes)

9. Re: [Shop-talk] Is this really true ?? (score: 1)
Author: Chris Kantarjiev <cak@dimebank.com>
Date: Fri, 11 Dec 2009 08:54:59 -0800 (PST)
Well, then, you're obviously not an audiophile. That world is engaged in entirely new levels of snake-oil sales, pitching power cables that are designed to resist the electrical interference that ca
/html/shop-talk/2009-12/msg00068.html (7,918 bytes)

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