3600I
Page: 21
2.5 INSTALLATION
CABLES
Follow the following guideline for the cable installation:
•
All cables to the detector must be well shielded in order to comply with EMC
requirement (see
Technical Specifications
on page 52).
•
Ground the detector to the nearest ground point (not more than 3m from the
detector location).
•
Install the detector with the cable entries placed downwards.
2.5.1 CONDUIT
INSTALLATION
The conduit used for the cabling must comply with the following:
•
To avoid water condensation water in the detector, install the detector with the
conduits placed downward, that include drain holes.
•
When using the optional tilt mount, use flexible conduits for the last portion
connecting to the detector.
•
For installations in atmospheres as defined in group B of the NFPA 72E, seal the
conduits inlets.
•
When pulling the cables through the conduits, ensure that they are not tangled or
stressed. Extend the cables about 30 cm. (12 in.) beyond the detector location to
accommodate wiring after installation.
•
After the conductor cables have been pulled through the conduits, perform a
continuity test.