Installation Manual

13
8 APPENDIX 12V DC WIRE GAUGE AND
TRANSMISSION DISTANCE RELATIONSHIP SHEET
The recommended max transmission distance is under the following environments: The wire
diameter is fixed and the DC 12V power voltage loss rate is below 10%. For the device of DC
power supplying, the max allowed voltage loss rate is 10%. All the wires listed in the following
sheet are copper wire. (Copper wire resistance )
mm
Feetm
w
0.8000
1.000
1.250
2.000
5
122.1337.23
190.8358.16
298.1790.88
763.31232.66
10
61.0618.61
95.4129.08
149.0845.44
381.66116.33
15
40.7112.41
63.6119.39
99.3930.29
254.4477.55
18
33.9210.34
53.0116.16
82.8225.24
212.0364.63
20
30.539.31
47.7114.54
74.5422.72
190.8358.16
25
24.437.45
38.1711.63
59.6318.18
152.6646.53
30
20.356.20
31.809.69
49.6915.15
127.2238.78
33
18.505.64
28.918.81
45.1813.77
115.6535.25
35
17.455.32
27.268.31
42.6012.98
109.0433.24
36
16.965.17
26.508.08
41.4112.62
106.0232.31
38
16.074.90
25.117.65
39.2311.96
100.4430.61
40
15.274.65
23.857.27
37.2711.36
95.4129.08
45
13.574.14
21.206.46
33.1310.10
84.8128.85
50
12.213.72
19.085.82
29.829.09
76.3323.27
55
11.103.38
17.355.29
27.118.26
69.3921.15
60
10.183.10
15.904.85
24.857.57
63.6119.39
65
9.392.86
14.684.47
22.946.99
58.7217.90
70
8.722.66
13.634.15
21.306.49
54.5216.62
75
8.142.48
12.723.88
19.886.06
50.8915.51
80
7.632.33
11.933.64
18.645.68
47.7114.54
85
7.182.19
11.233.42
17.545.35
44.9013.69
90
6.782.07
10.603.23
16.565.05
42.4112.93
95
6.431.96
10.043.06
15.694.78
40.1712.25
100
6.111.86
9.542.91
14.914.54
38.1711.63