31
10
APPENDIX Ⅳ THE RELATIONSHIP BETWEEN THE 12V
DC CABLE DIAMETER AND THE TRANSMISSION
DISTANCE
It is the recommended transmission distance when the cable diameter is fixed and the 12V DC
power consumption is below 10%. For the DC device, the max permission voltage power
consumption is 10%. The cables used in the following sheet are all copper wires. (the resistivity
of copper is
)
mm
Feet
(
m
)
w
0.8000
1.000
1.250
2.000
5
122.13
(
37.23
)
190.83
(
58.16
)
298.17
(
90.88
)
763.31
(
232.66
)
10
61.06
(
18.61
)
95.41
(
29.08
)
149.08
(
45.44
)
381.66
(
116.33
)
15
40.71
(
12.41
)
63.61
(
19.39
)
99.39
(
30.29
)
254.44
(
77.55
)
20
30.53
(
9.31
)
47.71
(
14.54
)
74.54
(
22.72
)
190.83
(
58.16
)
25
24.43
(
7.45
)
38.17
(
11.63
)
59.63
(
18.18
)
152.66
(
46.53
)
30
20.35
(
6.20
)
31.80
(
9.69
)
49.69
(
15.15
)
127.22
(
38.78
)
35
17.45
(
5.32
)
27.26
(
8.31
)
42.60
(
12.98
)
109.04
(
33.24
)
40
15.27
(
4.65
)
23.85
(
7.27
)
37.27
(
11.36
)
95.41
(
29.08
)
45
13.57
(
4.14
)
21.20
(
6.46
)
33.13
(
10.10
)
84.81
(
28.85
)
50
12.21
(
3.72
)
19.08
(
5.82
)
29.82
(
9.09
)
76.33
(
23.27
)
55
11.10
(
3.38
)
17.35
(
5.29
)
27.11
(
8.26
)
69.39
(
21.15
)
60
10.18
(
3.10
)
15.90
(
4.85
)
24.85
(
7.57
)
63.61
(
19.39
)
65
9.39
(
2.86
)
14.68
(
4.47
)
22.94
(
6.99
)
58.72
(
17.90
)
70
8.72
(
2.66
)
13.63
(
4.15
)
21.30
(
6.49
)
54.52
(
16.62
)
75
8.14
(
2.48
)
12.72
(
3.88
)
19.88
(
6.06
)
50.89
(
15.51
)
80
7.63
(
2.33
)
11.93
(
3.64
)
18.64
(
5.68
)
47.71
(
14.54
)
85
7.18
(
2.19
)
11.23
(
3.42
)
17.54
(
5.35
)
44.90
(
13.69
)
90
6.78
(
2.07
)
10.60
(
3.23
)
16.56
(
5.05
)
42.41
(
12.93
)
95
6.43
(
1.96
)
10.04
(
3.06
)
15.69
(
4.78
)
40.17
(
12.25
)
Содержание VUDO2PTZIR30X
Страница 1: ...VUDO2PTZIR30X 2 1MP Full HD 30X PTZ IP Dome Camera with IR Installation Manual Version 1 0 1 ...
Страница 17: ...9 Figure 1 12 ...
Страница 20: ...12 Figure 2 3 2 4 Pole Mount Bracket The pole mount bracket is shown as below See Figure 2 4 ...
Страница 21: ...13 Figure 2 4 ...
Страница 24: ...16 Figure 3 3 ...
Страница 30: ...22 Figure 5 3 ...
Страница 33: ...25 Figure 6 3 ...
Страница 38: ...30 mm Feet m w 0 8000 1 000 1 250 2 000 100 24 43 7 45 38 17 11 63 59 63 18 18 152 66 46 53 ...
Страница 40: ...32 mm Feet m w 0 8000 1 000 1 250 2 000 100 6 11 1 86 9 54 2 91 14 91 4 54 38 17 11 63 ...