Fw: Cat 5e Cable

[Gareth Cook <g@xxxxxxxxxx>]

I think this is where Keith will suggest the pairs are balanced and
dont
need to be shielded ?



Gareth Cook
IT Architect / Project Manager, SWG Sales Europe
Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
email: g@xxxxxxx


----- Forwarded by Gareth Cook/UK/IBM on 16/01/2008 21:02 -----

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ukha_d@xxxxxxx
Today 20:41

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RE: [ukha_d] Cat 5e Cable
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Thanks Gareth, that makes sense but surly if the cable is near mains
voltages it still would need to be screened? Or is the screening itself a
hazard?



B.



_____

From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Gareth Cook
Sent: 16 January 2008 20:31
To: ukha_d@xxxxxxx
Subject: Fw: [ukha_d] Cat 5e Cable



Its because the cbus data cables enter areas of high voltage - ie the DIN
units.

The sheath is 240v rated so if things do touch, the wire doesnt because a
big fire hazard.

Shielded will protect you from radio frequencies, not a massive surge in
voltage

G.

Gareth Cook
IT Architect / Project Manager, SWG Sales Europe
Office: +44 (0)1784 445166 - Mobile: +44 (0)7980 445166
email: g@xxxxxxx <mailto:g%40uk.ibm.com>

----- Forwarded by Gareth Cook/UK/IBM on 16/01/2008 20:29 -----

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ukha_d@yahoogroups. <mailto:ukha_d%40yahoogroups.com>
com
Today 20:05

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[ukha_d] Cat 5e Cable
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Hi all,

When installing cable for Idratek it is recommended to use STP (Shielded
Twisted Pair). But when reading some of the excellent BLOG's one user used
mains rated cable from the C-Bus website.

The STP makes sense but I do not know why use mains rated cable apart from
being near mains cables at times, surly you still need to use STP?

Can someone explain please?

B.

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