Spectrex SafEye Xenon 700S, Руководство пользователя

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TM 799200 Rev. (4), April 2017 65
Appendix A: Wire Selection Tables
In this appendix…
General Instructions for Electrical Wiring page 65
A.1 General Instructions for Electrical Wiring
Refer to Table 22 to determine the required wire gauge for general wiring,
such as relay wiring. Calculate the permitted voltage fall with respect to
loads current, wire gauge, and length of wires.
Refer to Table 23 to select wire gauge for power supply wires. Do not
connect any circuit or load to the detector’s supply inputs.
Table 22: Maximum DC Resistance at 68˚F/20˚C for Copper Wire
AWG # mm
2
Ohm per 100ft Ohm per 100m
26 0.12–0.15 4.32 14.15
24 0.16–0.24 3.42 11.22
22 0.30–0.38 1.71 5.60
20 0.51–0.61 1.07 3.50
18 0.81–0.96 0.67 2.20
16 1.22–1.43 0.43 1.40
14 1.94–2.28 0.27 0.88
12 3.09–3.40 0.17 0.55
10 4.56–6.64 0.11 0.35
 Select “Number of detectors” connected in 1 circuit.
 Select “wiring length” per your installation requirements.
 Refer to “power supply range” for voltage extreme applied.