Agilent Technologies 5747A, 5752A, 5744A, 5743A Wire Size, Tightened, Shorted, whichever is greater

		Installation 2
Connecting the Load
		SHOCK HAZARD Turn off AC power before making rear panel connections.
	WARNING
		All wires and straps must be properly connected with screws securely
		tightened.

As further explained in this section, 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

•Maximum wire length and voltage drop

•Noise and impedance effects of the load wiring

Wire Size

		FIRE HAZARD To satisfy safety requirements, select a wire size heavy
WARNING
		enough not to overheat		while carrying the power supply load current at the
		rated load, or the current that would flow in the event the load wires were
		shorted, whichever is greater.
		Along with conductor temperature, you must also consider voltage
		drop when selecting wire sizes. The following chart lists the
		resistance for various wire sizes and also the maximum lengths to
		limit the voltage drop to 1.0 volt for various currents.
		Although the power supply will compensate for up to 5V in each load
		wire, it is recommended to minimize the voltage drop to less than 1V
		to prevent excessive output power consumption from the power
		supply and poor dynamic response to load changes.
		Wire size	Resistance	Maximum length in feet to limit voltage to 1 V
		AWG	Ω/1000 foot	for 5 A	for 10 A	for 20A	for 50A	for 150A
		14	2.526	80	40	20	8	2
	12		1.589	120	60	30	12	3.4
	10		0.9994	200	100	50	20	6
	8		0.6285	320	160	80	32	10
	6		0.3953	500	250	125	50	16
	4		0.2486	800	400	200	80	26
	2		0.1564	1200	600	300	125	40
		0	0.0983	2000	1000	500	200	68

Series N5700 User’s Guide 21