Section A
……
cont
ii.
IMPORTANT NOTES;-
a. Do not use metal ties or straps as they can damage the
Detecting cable.
b. Do not over tighten the cable ties.
c. Detecting cable should never be installed between pipe-
work and its insulation. It must be installed on the outside
of any insulation finish.
d. ‘aqualarm’ WARNING LABELS (WL-1) should be fitted at
5m intervals along the entire length of all cables installed.
Where cables go through walls etc. the WL-1 should be
fitted either side of the wall.
Section B
1. Testing
Installed
Cables
i.
When all your Leader / Detecting / Jumper cables have been
installed, the total length should be Tested as follows :-
ii
Ensure that all the cables are connected together BUT DO NOT
CONNECT the Leader cable to the Control Panel AT THIS STAGE.
iii.
Connect the End of line resistive plug (EOL-2) to the end of the
last length of cable installed.
iv.
Carry out the following ‘TEST’ using a Multimeter to ensure the
integrity of the installed cables.
v.
Set Multimeter to read a resistance above 100 ohms. Connect
the Multimeter leads to the bare cores of the Leader Cable. The
following should be noted:-
CONDITION POSSIBLE FAULT
No
resistance
a. EOL-2 not fitted at end (Open
Circuit)
b. Cable disconnected along the
installed length.
Resistance reading
below 45 ohms
a. Cable is damaged (Short Circuit)
b. Cable is wet (Rectify)
Resistance
reading
above 50 ohms.
a. All cables are correct. System is
ready to connect to Control Panel.
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