User's Manual

TM0081 Page 8 of 51 Issue 1.01
3.2 APPROVED CABLES
To comply with EMC (Electro Magnetic Compatibility) regulations and to reduce the risk of electrical interference
in the system wiring, it is recommended that screened cables be used throughout the installation. Reference to
BS 5839 part 1, states there is two categories of cable,
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Category 1: required to operate for prolonged periods during a fire condition
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Category 2: not required to operate for prolonged periods during a fire condition
Cables complying to BS 6387 categories C,W, Z can be used for both categories 1 and 2, Cables deemed
suitable as Category 1 can be used as category 2, but not visa versa. The following commonly available
screened cables have been approved for use on sounder and detection circuits:
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Pirelli FP200 Gold™
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MICC (Pyro™)
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Firetuff™
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Firecel™
Connection to the Kidde network and repeater panels should be made using Beldon 9729, UL2493 or MICC.
Satisfactory operation of the system with inferior cable types cannot be guaranteed especially when not wired in
accordance with to the appropriate regulations, i.e. loop wiring run in proximity to high voltage (AC mains and
above) cabling.
3.3 INTERNAL CABLE ROUTING
It is important that the following procedures on internal cable routing and cable terminations inside the control
panel are adhered to fully. These procedures have been established to ensure the control panel complies with
the European Directive on Electromagnetic Compatibility (89/336/EEC).
The external cables must be kept to an absolute minimum length from the cable entering the enclosure to the
terminating position on the relevant printed circuit board. Special attention should be made to ensure that cables
do not cross over other cables where possible, as this may generate interference/electrical noise.
The detection loop and sounder circuit cabling is classed as Low Voltage and should be segregated from mains
voltages. The pre-formed knockouts shown in figure 3 must be carefully removed, where required, using a flat
broad-bladed screwdriver and hammer. Use of excessive force should not be required and may damage the
enclosure around the knockout. The surrounding paint must be carefully removed to permit metal to metal
contact between the enclosure and cable gland.
Figure 3: Knockouts and Cable Routing