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Example 2 – An installation requires 500 ICMs on a single wire path and the Trunk wire length will be up
to 9,000 feet (2,700 meters). Utilizing the sizing chart the Trunk wire should be designed using 12 AWG
2
2
2
(4.0 mm
) wire. NOTE: 12 AWG (4.0 mm
) wire will be used for the Trunk wire only. 14 AWG (2.5 mm
)
wire can be used for all branch lines if each branch does not exceed 25% of the total Trunk wire length. In
this example, any branch that is less than 2250 feet (685 meters), 25% of the Trunk wire length, can be
installed with 14 AWG (2.5 mm
2
) wire.
14
IC System Design Guide, v2.4
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