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997-433-000-5, Issue 5
May 2010
ID2000 Series Installation & Commissioning Manual
3.2 Cable Installation Notes
3.2.1 Introduction
The following notes are intended to assist installers of
analogue addressable control systems. They have been
produced from information derived from the supplier's
technical resource and from information fed back
concerning existing systems.
3.2.2 Quality of Cable and of Cable Installation
It is vitally important that good quality cable is used, and
that correct installation techniques are followed. In general,
the following cable installation requirements must be met:
a. All cable sections must be circular to allow effective
b. The cable must be screened (sheathed) to provide
c. Multiple earthing of the screen should be avoided.
d. The screen must be continuous throughout the loop.
e. The maximum resistance of the loop should not exceed
f. We recommend that the system should be wired in 2-
g. The RS485 communication cable used should be rated
16
cable clamping using the cable glands.
protection against Radio Frequency Interference (RFI)
and the screen must be connected to earth at the
control panel.
NOTIFIER's field products use insulated mounting bases
and back boxes to achieve this. We recommend that
this practice be continued if other connections are made.
To achieve this with MICC cable may require the use of
insulated cable glands at one end of the cable.
the limits defined in Section 8.4.2 Loop Checks before
Connecting Wiring, step 2. To check this, measure
between IN- and OUT-, multiply the result by 2 and add
the resistance of each isolator (range 0.1 to 0.13 ohms
each). The cable capacitance should be less than 0.5μF.
Typically this will allow a maximum loop length of 2000m
of screened 1.5mm
cable. Cable recommended for
2
use is MICC with a LSF PVC overcovering, a fire
resilient cable to BS7629 or PVC/SWA/PVC to BS6387.
Recommended Cables:
Manufacturer
Product Name
AEI
MICC
AEI
Firetech
Draka
FiretufPlus
Draka
Firetuf
Prysmian
FP Plus
Prysmian
FP200 Gold
Arrow
-
1
For a definition of 'Standard' and 'Enhanced' cable requirements and their different
applications, refer to BS 5839-1 Section 26. Enhanced cable is typically required
for spur sounder outputs, while standard cables may be adequate for other fire-
related I/O provided there is diverse cable routing. The multi-core cable from Arrow
is suitable for RS232 connections to a printer.
core cables and each 2-core cable should be specific
to one function.
as suitable for up to 200mA in a short circuit condition.
Part Number
Type
1
2L1.5
Enhanced
298-052
Standard
FTPLUS2E1.5RD
Enhanced
FTZ2E1.5
Standard
FP Plus 2x1.5 Red
Enhanced
FP200 Gold 2x1.5 Red
Standard
7-2-4S
Not rated
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