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| Re: [GMCnet] Silicone 2 gauge battery cable from Amazon [message #215834 is a reply to message #215829] |
Fri, 26 July 2013 19:54   |
Ronald Pottol
Messages: 505
Registered: September 2012
Location: Redwood City, California
Karma: -2
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Odd bit of Amazon auto preferences, you can pick a 73 or 74 transmode as
your vehicle type, but not a 75 (I didn't check other years), and not a
motorhome.
On Fri, Jul 26, 2013 at 5:27 PM, David Orders <dao@oarsllc.com> wrote:
>
>
> Just received this from Amazon. Free shipping. Add a 10 pack of terminals
> and replace all those suspect cables, including those really long ones. If
> you still have your stock cables, you need this!
>
>
> http://www.amazon.com/gp/product/B003A3CTU8/ref=oh_details_o01_s02_i00?ie=UTF8&psc=1
>
> and ends
>
>
> http://www.amazon.com/gp/product/B005V9UU0A/ref=oh_details_o01_s01_i00?ie=UTF8&psc=1
>
>
> --
> 1976 Royale "Twinkie II", 1978 Palm Beach with front end fire. Lynnwood WA
>
> “Before you criticize someone, you should walk a mile in their
> shoes. That way when you criticize them, you are a mile away from them and
> you have their shoes.”
> _______________________________________________
> GMCnet mailing list
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>
--
Plato seems wrong to me today.
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1973 26' GM outfitted
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| Re: Silicone 2 gauge battery cable from Amazon [message #215864 is a reply to message #215829] |
Sat, 27 July 2013 06:43 |
mickey szilagyi
Messages: 273
Registered: January 2013
Karma: 0
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Just notice this cable is copper clad aluminum. Is that OK? Seems like when we recently redid all our cables we were told not to use aluminum but I can't remember who told us. We used welding cable, fine stranded copper. It is a bit heavy but it sure is flexible.
Mickey
1977 Kingsley, 403, Lansing, MI
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| Re: Silicone 2 gauge battery cable from Amazon [message #215868 is a reply to message #215829] |
Sat, 27 July 2013 08:25 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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Senior Member |
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2 gauge Aluminum can carry 100Amps at 90 degrees same in copper is 130A. You have to go to 1/0 in aluminum to match pure copper 135A.
I have never heard of copper clad aluminum wire. That alone doesn't mean much because there are lots of things I've never heard of but I would be concerned about long term galvanic corrosion issues inside the silicone insulation where you'd never see it.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Silicone 2 gauge battery cable from Amazon [message #215888 is a reply to message #215870] |
Sat, 27 July 2013 10:32 |
Bruce Hart
Messages: 1501
Registered: October 2011
Location: La Grange, Wyoming
Karma: 5
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Senior Member |
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I had a house built in 1990 in northern Colorado where the electrician
used aluminum wire from the meter to the breaker box. Eight years
later I was having issues with my power cycling off and on. Discussed
this with a fellow worker and he suggested to tighten down the screws
on the wire leads at the meter and apply some special jelly for
aluminum wires. Sure enough that was the problem the wire leads were
loose in the meter box.
On 7/27/13, Rob Mueller <robmueller@iinet.net.au> wrote:
> Kerry,
>
> I'm not sure of the years I'm about to state but in the late 60' s in
> Houston they built houses with aluminum wire to reduce costs.
> It would work ok IF (note the caps) the electricians installed the plugs and
> sockets correctly. I believe they were supposed to use
> some kind of paste to aid conductivity. Well naturally some electricians did
> and some didn't. it resulted in some bad fires so they
> switched to copper coated aluminum wire. It was better but better quality
> homes didn't use it. I remember looking at houses back in
> those days and the cheaper ones had the wall studs set at 24 inches. I'll
> bet sooner or later you'd get sea sick looking at the
> waves in those walls! ;-)
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Kerry Pinkerton
>
> 2 gauge Aluminum can carry 100Amps at 90 degrees same in copper is 130A.
> You have to go to 1/0 in aluminum to match pure copper
> 135A.
>
> I have never heard of copper clad aluminum wire. That alone doesn't mean
> much because there are lots of things I've never heard of
> but I would be concerned about long term galvanic corrosion issues inside
> the silicone insulation where you'd never see it.
>
> Kerry
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
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Bruce Hart
1976 Palm Beach
1977 28' Kingsley
La Grange, Wyoming
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| Re: [GMCnet] Silicone 2 gauge battery cable from Amazon [message #215889 is a reply to message #215870] |
Sat, 27 July 2013 10:35 |
Otterwan
Messages: 946
Registered: July 2013
Location: Lynnwood (north of Seattl...
Karma: 0
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Senior Member |
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Hmmmmmm - didn't notice the copper clad aluminum part. That explains why the price seems so good. Anyone one have any actual experience with this? Most of what I can find on the web seems to be knee-jerk negative reactions with very little facts, most referring to all aluminum house wire issues from 40 years ago. I did find this interesting article:
http://www.assemblymag.com/articles/88415-wire-processing-aluminum-wire-takes-on-copper
If I can't find anyone who has actually used this, looks like Amazon will be getting it back.
1977 Birchaven, Lynnwood WA - "We may not be able to stop all evil in the world, but I know that how we treat one another is entirely up to us."
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| Re: [GMCnet] Connections in Breaker Box [message #215900 is a reply to message #215892] |
Sat, 27 July 2013 11:55 |
Rosebud
Messages: 132
Registered: September 2006
Karma: 0
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Emery is totally correct.
The main breaker kept getting hot & tripping the switches in my coach while in Dothan. Then at our GMC Classics Rally in Kerrville, it started doing the same thing again, with greater frequency. James Harper came to my rescue & took the cover off to check things out. As it turned out, there was a loose screw to that one breaker. He tightened it, & it's been working great since then. I wondered if it got loosened by all of the time spent driving back & forth on that washboard I-10 in Louisiana. :) So yes, make sure you guys don't have a screw loose. lol Y'all have fun in Branson. Stay healthy & travel safely.
Billie Young - Your Sunshine Lady
'00 Coachmen Catalina
Kingsland, Tx.
Sent from my iPad
On Jul 27, 2013, at 10:46 AM, Emery Stora <emerystora@me.com> wrote:
....Over the years heating and cooling of the wires at the connections causes the screws to loosen. If you have never done this I think you will be surprised at how loose some of the screws are.
Emery Stora
77 Kingsley
Frederick, CO
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| Re: Silicone 2 gauge battery cable from Amazon [message #215909 is a reply to message #215829] |
Sat, 27 July 2013 13:35 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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The reason besides heating/cooling and vibration is that copper is a soft (malable) metal. When you remove the wire you can see how it is flattened by pressure. We went throught this in the live sound business all the time of having to retighten AC connectors. Yes and lots of heat/cold vibrations cycles as well, but the molecules move over time under the constant pressure squeeze. Think of how an English wheel works. You can tighen down, and a week later get another 1/8 turn, even if there was no use. Alluminum is worse. To properly do an alluminum connection you have to get NOALOX on the alluminum as you remove the insulation to prevent the air from getting at it. Then with it covered in the goop tighten down the connection. Never thought the savings and tradeoff of having to upsize the conductor (less total wires in a conduit as well) was worth the savings. Also the Chernobyl effect of thermal resistance rise is worse on alluminum which compounds the problem.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Silicone 2 gauge battery cable from Amazon [message #215916 is a reply to message #215889] |
Sat, 27 July 2013 14:21 |
habbyguy
Messages: 896
Registered: May 2012
Location: Mesa, AZ
Karma: 3
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Senior Member |
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| Otterwan wrote on Sat, 27 July 2013 08:35 |
Hmmmmmm - didn't notice the copper clad aluminum part. That explains why the price seems so good. Anyone one have any actual experience with this? Most of what I can find on the web seems to be knee-jerk negative reactions with very little facts, most referring to all aluminum house wire issues from 40 years ago. I did find this interesting article:
http://www.assemblymag.com/articles/88415-wire-processing-aluminum-wire-takes-on-copper
If I can't find anyone who has actually used this, looks like Amazon will be getting it back.
|
The cable was NOT a good deal - IMHO of course. For less than that you could have bought high quality pure copper cable, and it would have much less resistance (and therefore, less voltage drop).
For example, typical #2 stranded copper cable has 0.159 ohms resistance per 1000 feet, while the same size aluminum cable would measure about 0.262 ohms. Nothing to get your panties in a wad over, but you could get slightly less resistance with #4 copper (which would be easier to work with and even cheaper).
FWIW, I got 25 feet of some really nice #1/0 finely stranded copper cable to rewire my power distribution with (to support a 1000 watt inverter mounted in the rear) for $32... FWIW, that cable has a resistance of 0.100 ohms per 1000 feet.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230700242737
Mark Hickey
Mesa, AZ
1978 Royale Center Kitchen
[Updated on: Sat, 27 July 2013 14:22] Report message to a moderator |
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