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5-2
• All field wires must be 0.75 mm
2
or greater cross section and comply with
AS1670.1 and the wiring code.
• Conductors must test free of all earth leakage.
• All wiring must be done using copper conductors only, unless noted otherwise.
• If shielded wire is used,
- the metallic continuity of the shield must be maintained throughout the
entire cable length.
- the entire length of the cable must have a resistance greater than 1 Megohm
to earth ground.
• Underground wiring must be free of all water.
• Wires that run in plenum should be in conduit.
• A system ground must be provided for earth detection and lightning protection
devices. This connection must comply with approved earth detection.
• Only system wiring should be run together in the same conduit.
• Use supplied ferrite beads with all SPS field wiring including the Aux 24V.
Loop wires twice through the supplied ferrite bead(s) as shown in Figure 5-1.
(Extra can be ordered as 4100-5129 – 3 beads).
Figure 5-1. The Ferrite Bead
Continued on next page
General Field Wiring Guidelines
General Guidelines
Wires go twice
through (1 turn)