Rezontech RFD-2000X - Installation and Electrical Wiring; Wiring the Detector; Cable Selection for Electrical Wiring

Co.,Ltd. UV/IR Type Flame Detector RFD-2000X
Document No. Manual-2000X Rev.3 March 2013
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3.3 Installation and Electrical Wiring
3.3.1 Wiring the Detector
3.3.1.1 Conduit installation
ㆍ Use 1/2 inch NPT-14 or M20X1.5 conduit connection or suitable explosion-proof gland
to assemble the cable and conduit to the detector.
ㆍ When using conduit connection for Division installation, conduit seals must be installed
within 18 inches (450mm) from the enclosure.
ㆍ When using conduit connection for ATEX installation, conduit seals must be placed at
enclosure.
ㆍ Install the conduit including drain holes place downward to avoid water condensation in
the detector.
ㆍ Any conduit entry not used during installation shall be plugged with suitably rated and
approved conduit/blanking plug.
3.3.1.2 Cable Selection for Electrical Wiring
ㆍ All cables to the detector should be well shielded for EMC.
ㆍ Wire gauge for detectors power supply wires.
AWG No. Diameter(㎜) Cross section(㎟)
24 0.511 0.205
23 0.573 0.258
22 0.644 0.326
21 0.723 0.410
20 0.812 0.653
19 0.912 0.653
18 1.02 0.823
17 1.15 1.04
16 1.29 1.31
15 1.45 1.65
14 1.63 2.08
[Table 8] American Wire Gauge Standard
3.3.1.3 Conduit or Gland Standard (Connector)
ㆍ Cable Conduit Standard : 1/2 inch NPT-14, M20 X 1.5(Option)
ㆍ Water and Dust : IP67, NEMA Type 4X
3.3.2 Using of bracket during installation