Tyco 4100U General Field Wiring Guidelines, 1.The Ferrite Bead SX0005, Continued on next page

General Field Wiring Guidelines

General Guidelines	Make sure these guidelines are accounted for before wiring:
	• All field wires must be 0.75 mm2 or greater and comply with AS1670.1 and the
	wiring code.
	• Conductors must test free of all grounds.
	• 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.

• In areas of high lightning activity, or in areas that have large power surges, the 2081-9027 Transient Suppressor should be used on monitor points.

• 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 7-1. (Extra can be ordered as SX0005.)

Wires go twice

through (1 turn)

Figure 7-1. The Ferrite Bead (SX0005)

Continued on next page

7-2