SMS SenTRI2, Руководство по установке, Страница: 9 / 44

9
SenTRI4 fire system
Loop cables
There is a maximum limit
of 2Km loop cable usage
allowed per loop circuit.
This maximum limit is the
sum of the cable used on
main loop circuit, spurs
off main loop circuit, plus
cable runs to all input
/ output lines off loop
powered interface units
installed on the same loop.
There is a further
maximum limit of 100m
cable run allowed per
input/output line off loop
powered interface unit.
The device loop cable carries both data
and power, therefore its selection is
important. Note the following:
†
In countries where the European
EMC directive is in force, only EMC
Compliant cables are to be used.
†
The loop cable usage must not
exceed 2Km. This includes the cable
used on main loop and spur circuits.
†
Single pair cable must be used. It is
NOT permissible to run mixed loops
or outgoing and return pairs in a
multi core cable, due to inadequate
separation and possible electrical
interference problems.
†
Each core of the loop cable must be
1.5mm
2
cross section area.
†
the cable screen must be capable of
being earthed at each system device
(outstation).
†
Red is the preferred cover sheath for
fire applications.
†
The specified loop circuit cables are
also suitable for wiring master alarm,
auxiliary relay, input/output lines and
mains supply.
Enhanced loop cables
Approved cables for loop wiring
(EMC Compliant)
†
Draka Firetuf FT120 Enhanced -
FTPLUS2EH1.5RD
(formally Firetuf FT Plus )
†
Datwyler Pyrofil Enhanced
†
Mineral insulated cable (MICC) to
BS6207:Part 1
†
Prysmian (previously Pirelli)
FP PLUS *
Standard loop cables
Approved cables for loop wiring
(EMC Compliant)
†
AEI Cables FIRETEC *
7
Alcatel cable PYROLON E *
distributed by Winstonlead
7
BICC Pyrotenax FLAMESIL FRC *
†
Cavicel SpA FIRECEL SR 114H *
distributed by Cables Britain
†
Datwyler Pyrofil Standard *
(previously LIFELINE )
†
Draka Firetuf EMC Standard 1.5mm
2
FTEMC2EH1.5RDR
†
Draka Firetuf FTES2EH1.5 (previously
FTZ2E1.5 FIRETUF OHLS *) fire
resistant data cable
†
Huber & Suhner RADOX FR *
†
Prysmian (formally Pirelli)
FP200 FLEX *
†
Prysmian (formally Pirelli)
FP200 GOLD *
†
Raydex CDT FG950 *
2.5mm² Loop cable (2.5Km loop)
The cable reference for
a 2.5mm
2
loop cable
is similar to 1.5mm
2
cable, for example the
cable reference for a
Draka Firetuf 1.5mm
2
is FTPLUS2EH1.5
and for a 2.5mm
2
it is
FTPLUS2EH2.5, consult
cable supplier.
For cables marked with an * see note on
the next page.