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Installation 45
Table 3-2. Maximum Wire Lengths to Limit Voltage Drops
Wire Size
Resistivity
Maximum Length in Meters (Feet) to Limit
Voltage Drop to 0.5 V or Less
Cross Section
AWG Area in mm2
Ω/kft Ω/km
5 A 10 A 20 A 30 A 40 A 50 A 60 A
22 16.15 (6) (3) (1.5) (1) (0.77) (0.62) (0.52)
0.5 40.1 2.5 1.2 0.6 0.4 0.31 0.25 0.21
20 10.16 (9.5) (4.5) (2) (1.5) (1.23) (0.98) (0.82)
0.75 26.7 3.7 1.9 0.9 0.6 0.47 0.37 0.31
18 6.388 (15.5) (7.5) (3.5) (2.5) (2.0) (1.57) (1.30)
1 20.0 5.0 2.5 1.3 0.8 0.63 0.50 0.42
16 4.018 (24.5) (12) (6) (4) (3.1) (2.49) (2.07)
1.5 13.7 7.3 3.6 1.8 1.2 0.91 0.73 0.61
14 2.526 (39.5) (19.5) (9.5) (6.5) (4.9) (3.46) (3.30)
2.5 8.21 12.2 6.1 3.0 2.0 1.52 1.22 1.01
12 1.589 (62.5) (31) (15.5) (10.5) (7.9) (6.29) (5.24)
4 5.09 19.6 9.8 4.9 3.3 2.46 1.96 1.64
10 0.9994 (100) (50) (25) (17) (12.5) (10.00) (8.34)
6 3.39 29 14.7 7.4 4.9 3.69 2.95 2.96
8 0.6285 (159) (79) (39.5) (27) (19.9) (15.91) (13.25)
10 1.95 51 25 12.8 8.5 6.41 5.13 4.27
6 0.3953 (252) (126) (63) (40) (31.6) (25.30) (21.07)
16 1.24 80 40 20 13.4 10.08 8.06 6.72
4 0.2486 (402) (201) (100) (68) (50.37) (40.23) (33.51)
Zero-Volt Loading Connections
As shown in Figure 3-15, the Electronic Load can be connected in series with a voltage source or auxiliary power supply
greater than 3 V so that the Electronic Load can test devices at its full current capacity down to a zero-volt level. Remote
sensing is recommended for improved load regulation and when turning the short on.