Videodrome;214051 Wrote: 
> I called DH Labs.

Isn't that like going to a car dealership and asking the salesman if he
recommends you should go with one of his vehicles or keep driving your
'92 Ford Taurus?

Replacing your cables every 1000 hours = a good strategy to ensure
repeat/ongoing sales.  The audacity!  To sell this hideously overpriced
stuff in the first place, then to GET THE CUSTOMER TO DO IT AGAIN IN A
FEW YEARS!

BTW oxidation tends to form its own barrier.  It will thoroughly coat
the bare metal, then the rate of corrosion will slow as it tends to
insulate the rest of the metal from the elements.  This is why copper
roofing is still structurally sound long after it's turned green (it's
good for many decades).  This is also why aluminum doesn't appear to
suffer from oxidation - in reality the reaction is so fast that the
aluminum is thoroughly coated with oxide as it is being cast.  After
the entire surface is oxidized, the metal is insulated and further
oxidation occurs much, much slower.

Also look at the thickness of the corrosion versus the thickness of the
metal.  Even heavily-oxidized copper wire contains a very thin layer of
corrosion, at least in comparison to the metal thickness.  It is orders
of magnitude thinner than the remaining copper.

And finally, any cable with insulation that allows the copper inside to
oxidize is poorly-designed or defective.  If you've done any home
remodelling and stripped any older wire sealed with PVC, the wire
inside is pristine.  It sure should be, oxidized home wiring is
dangerous as it can arc.


-- 
Mark Lanctot

'Sean Adams' Response-O-Matic checklist, patent pending!'
(http://forums.slimdevices.com/showpost.php?p=200910&postcount=2)
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