Connecting The Load - Agilent Technologies N8700 User Manual

Connecting the Load

WARNING
Wire Size
WARNING
AWG
Series N8700 User's Guide
SHOCK HAZARD Turn off AC power before making rear panel connections.
Wires and straps must be properly connected and screws securely tightened.
The following factors should be considered when selecting wiring to
connect the load to the power supply:
Current carrying capacity of the wire

Insulation rating of the wire should be at least equivalent to

the maximum output voltage of the power supply
Load wire voltage drop

Noise and impedance effects of the load wiring

FIRE HAZARD To satisfy safety requirements, load wires must be large
enough not to overheat when carrying the maximum short-circuit current of
the power supply. If there is more than one load, then any pair of load wires
must be capable of safely carrying the full-rated current of the supply.
Paralleled load wires may be required for larger-ampacity power supplies.
The following table lists the characteristics of AWG (American Wire
Gauge) copper wire.
equivalent
area in mm
18
0.823
16
1.31
14
2.08
12 3.31
10
5.26
8 8.37
6
13.30
4 21.15
2
33.62
1/0
53.48
2/0
67.43
3/0
84.95
Note 1. Ampacity is based on 30 °C ambient temperature with the conductor rated at
60 °C. For ambient temeratures other than 30 °C, multiply the above
ampacities by the following constants:
Temp (°C)
21-25
26-30
Note 2. Resistance is nominal at 20 °C wire temperature.
nearest Metric
2
wire size
2
1.0 mm
2
1.5 mm
2
2.5 mm
2
4 mm
2
6 mm
2
10 mm
2
16 mm
2
25 mm
2
35 mm
2
70 mm
2
70 mm
2
95 mm
Constant
1.08
1.00
Installation 2
Ampacity Resistance
Note 1 (Ω/1000 feet) Note 2
14 6.385
18 4.016
25 2.526
30 1.589
40 0.9994
60 0.6285
80 0.3953
105 0.2486
140 0.1564
195 0.0983
225 0.0779
260 0.0618
Temp (°C) Constant
31-35 0.91
36-40 0.82
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