Faraday 12530-120, Руководство пользователя

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1 2 5 3 0 / 1 2 5 4 0 O W N E R ' S M A N U A L
P/N 447203 Issue I VIII-1
VIII. APPENDIX-A: REFERENCE DATA
This appendix provides reference for the following topics:
•
Wire selection guides
•
Battery size calculations
WIRE SELECTION GUIDES
Resistance of Solid Copper Wire
AWG Ohms per Thousand Feet*
18 8.08
16 5.08
14 3.19
12 2.01
*NEC Chapter 9, Table 8.
Initiating Device Circuit Wire Selection Guide
The following charts are based on the resistance of solid copper wire.
Maximum Wire Loop Distance (feet)
Each 12503 Conventional Expansion Board initiating circuit loop must not have a resistance greater than
100 ohms.
Wire size: 18AWG 16AWG 14AWG 12AWG
Wire length: 12,376 19,685 31,347 49,751
Cable length: 6,188 9,842 15,673 24,875