Pelco Manual C1982M-A (12/00) [ 9 ]
Table A. Recommended Wire Gauge and Wiring Distances
The following are the recommended maximum distances for 24 VAC applications and are calculated
with a 10-percent voltage drop. (Ten percent is generally the maximum allowable voltage drop for
AC-powered devices.)
Wire Gauge
Total 20 18 16 14 12 10
vA (0.5 mm2) (1.0 mm2) (1.5 mm2) (2.5 mm2) (4.0 mm2) (6.0 mm2)
10 283 451 716 1142 1811 2880
(86) (137) (218) (348) (551) (877)
EXAMPLE: A camera that requires 10 vA and is installed 283 feet (86 m) from the transformer
would require a minimum wire gauge of 20 AWG.
NOTE: Distances are calculated in feet; values in parentheses are meters.
Table B. Video Coaxial Cable Requirements
Cable Type* Maximum Distance
RG59/U 750 ft (229 m)
RG6/U 1,000 ft (305 m)
RG11/U 1,500 ft (457 m)
* Minimum cable requirements:
75 ohms impedance
All-copper center conductor
All-copper braided shield with 95% braid coverage