I think there is some confusion too about the aluminium flat, paper-like ad=
ditional shield, which is indeed often there in cables for installation.
spiral braided (copper) shield is the way just about ever high spec cable i=
s built. It just means the copper shield holds together more than when its =
wrapped around the cores in a different figuration.
--- In Dan Dugan <> wrote:
>
> > The Canare star quad use braided copper shielding.
> > http://www.canare.com/ProductItemDisplay.aspx?productItemID=3D53
> >
> > So does that Belden.
> > http://www.belden.com/techdatas/metric/1804a.pdf
> >
> > The tinned copper might look like aluminum.
>
> I have never heard of aluminum braided or spiral-wrapped cable shielding =
and I think the reports of it above may be based on misunderstanding of cab=
le specifications. It would not be solderable, nor would it make a reliable=
crimp connection as aluminum oxide is a good insulator. Cables for install=
ation are made with aluminum foil shielding which gives 100% coverage. They=
have a tinned copper drain wire for connections, as aluminum can't be sold=
ered. Those cables are not intended for flexing; the foil shields will brea=
k up.
>
> -Dan
>
"While a picture is worth a thousand words, a
sound is worth a thousand pictures." R. Murray Schafer via Bernie Krause.
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