Agilent Technologies 6012B EN User Manual
Page 29
Operating Instructions 29
Table 3-2. Maximum Wire Lengths To Limit Voltage Drops
Wire Size
Resistivity
Maximum Length In Meters (Feet)To
Limit Voltage Drop To 0.5V Or Less
AWG
Cross-section (mm
2
)
Ω
/kft
Ω
/km
5 A
10A
17 A
30A
50A
120A
22
16.15
(6.19)
*
*
*
*
*
0,5
40.1
2.5
*
*
*
*
*
20
10.16
(9.8)
*
*
*
*
*
0,75
26.7
3.7
1.8
*
*
*
*
18
6.388
(15.6)
(7.8)
*
*
*
*
1
20,0
5.0
2.5
*
*
*
*
16
4.018
(24.8)
(12.4)
(7.3)
*
*
*
1,5
13.7
7.3
3.64
*
*
*
*
14
2.526
(40)
(19.7)
(11.6)
(6.6)
*
*
2,5
8.21
12.2
6.1
3.5
*
*
*
12
1.589
(62.9)
13.46)
(18.5)
(10.49)
*
*
4
5.09
19.6
9.8
5.7
3.27
*
*
10
.9994
(100)
(50)
(29.4)
(16.68)
(10.01)
*
6
3.39
29.5
14,7
8.6
5.9
*
*
8
0.6285
(160)
(79.5)
(46.7)
(26.52)
(15.91)
*
10
1.95
51,2
25,6
15
8.55
5.13
*
6
0.3953
(252)
(126.5)
(74.4)
(42.16)
(25.3)
*
16
1.24
80.6
40,3
23.7
13.44
8.06
*
4
0.2486
(402)
(201)
(118)
(67.04)
(40.23)
(16.76)
25
0.795
125.7
62.8
37
20.96
12.58
5.24
2
0.1564
(639)
(319)
(188)
(106.5)
(63.94)
(26.64)
35
0.565
176.9
88.5
52
29.5
17.7
7.37
50
0.393
254.4
127
74.8
42.4
25.45
10.6
0
0.09832
(1017)
(508)
(299)
(169.5)
(101.7)
(42.38)
* Wire not rated for power supply maximum current rating.
Table 3-3. Stranded Copper Wire Ampacity
Wire Size
AWG
Cross Section (mm
2
)
Ampacity
NOTES:
22
5.0
20
8.33
0.75
10
1
13.5
18
15.4
1.5
16
16
19.4
2.5
25
14
31.2
4
32
12
40
6
40
10
55
10
63
8
75
6
100
4
135
2
180
0
245
1. Ratings for AWG-sized wires are derived from MIL-W-
5088B. Ratings for metric-sized wires are derived from IEC
Publication 335-1.
2. Ampacity of aluminum wire is approximately 84% of that
listed for copper wire.
3. When two or more wires are bundled together, ampacity for
each wire must be reduced to the following percentages:
2 conductors 94%
3 conductors 89%
4 conductors 83%
5 conductors 76%
4. Maximum temperatures: Ambient, 50
°
C; conductor, 105
°
C