Re: [CAD_CAM_EDM_DRO] Digest Number 923
Posted by
beer@s...
on 2000-11-28 15:01:38 UTC
On 28 Nov, CAD_CAM_EDM_DRO@egroups.com wrote:
Primarily used to prevent common mode noise from ENTERING. Also has
some value in preventing it from leaving BUT, for RF frequencies, it
would need about one million twists per inch .. probably more.
Shielded:
Hard to find multiconductor shielded cable with fat enough wire .. no
other reason not to, though.
Alan
--
Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta
> Message: 1Twisting:
> Date: Tue, 28 Nov 2000 11:29:20 -0700
> From: "Smoke" <Smoke@...>
> Subject: Re: Re: Electronic Box Shielding ?
>
> Why can't you just use shielded cabling or perhaps twisted pair cabling as
> is done for network wiring?
>
> Smoke
Primarily used to prevent common mode noise from ENTERING. Also has
some value in preventing it from leaving BUT, for RF frequencies, it
would need about one million twists per inch .. probably more.
Shielded:
Hard to find multiconductor shielded cable with fat enough wire .. no
other reason not to, though.
Alan
--
Alan Rothenbush | The Spartans do not ask the number of the
Academic Computing Services | enemy, only where they are.
Simon Fraser University |
Burnaby, B.C., Canada | Agix of Sparta