Ptotec 3300 - 4.0 Cabling Requirements; 4.1 Detector, Alarm and Auxiliary Wiring; 4.2 Mains Wiring

93-530-70 Issue 0 Page 7 of 44 © Protec Fire Detection PLC 2007
4.0 Cabling Requirements
4.1 Detector, Alarm and Auxiliary Wiring
All external wiring associated with the system must conform to the current I.E.E Regulations and
cabling must conform to the relevant BS specifications. ECA recommended Cable Separation for
Electromagnetic Compatibility in Buildings must be followed.
To comply with EMC regulations Protec recommends the use of screened cabling throughout the
installation. The screens must be securely connected to the screwed earthing studs provided inside
the 3300 enclosure.
Screened cables that are suitable for wiring are:
MICC (Pyro
TM
), Pirelli FP200
TM
, FireTuff
TM
, or any other cable which complies with BS 6387
(categories C, W, Z).
Proper glanding of the cable is vital to the correct performance of the system.
4.2 Mains Wiring
The 3300 requires a mains supply exclusive to the panel that uses fixed three core wiring (between
0.75mm
2
and 2.5mm
2
) which is fed from a double pole isolating fused spur, fused at 3A.
Unauthorised operation of the mains supply should not be allowed and the fused spur should be
labelled “FIRE ALARM: DO NOT SWITCH OFF”
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