On Fri, 01 Dec 2006 17:38:00 +0000 (GMT), "Dave Plowman (News)"
wrote:


I'm not sure why they specify 1mm except that it's the smallest TW&E
available. I can't see the resistance being a factor.

The very best cable for interference pick up rejection is star quad mic
cable. Might be difficult to get cut lengths, though.

But do you know what the cable carries? If only low voltage DC, it might
be possible to reduce the AC pickup by other means.

I do not know what it carries but it is not mains.
Their installation instructions are silent on the matter. The advice
to use 1mm2 solid core - with a maximum length of 50m - was in
response to my question of wildly fluctuating readings . I guess it is
resistance related matter rather than anything else. I am only looking
at a length of about 8m.

I am minded to try some of this stuff
http://cpc.farnell.com/jsp/endecaSea...p?SKU=CBBR6416
since its relatively cheap but would be interested if anyone sees any
problem in so doing.

As I am sure is obvious to you guys, my knowledge of control system
cabling and its inherent difficulties is non existent!

Many thanks to all the respondents so far
Please reply to group - email address is not monitored
Ian