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4.9
Connecting the Load
1. Turn off the AC input power before making or changing any rear panel connection.
2. Ensure that all connections are securely tightened before applying power.
WARNING
There is a potential shock hazard when using a power supply with an output voltage greater than
60VDC. Turn off the AC input power before making or changing any rear panel connection.
Ensure that the protection of output plug is mounted and properly assembled for power supplies
when output voltage exceed 60VDC. Ensure that all connections are securely tightened before
applying power.
WARNUNG
Bei Einsatz eines Netzgeräts mit einer Ausgangsspannung von über 60 VDC besteht das Risiko
eines Stromschlags. Schalten Sie die AC-Eingangsspannung immer AUS, bevor Sie irgendwelche
Anschlüsse an der Geräterückseite vornehmen oder verändern. Stellen Sie sicher, dass die
Schutzabdeckung des Ausgangssteckers ordnungsgemäß angebracht ist, wenn
Ausgangsspannungen von mehr als 60 VDC auftreten können. Stellen Sie sicher, dass alle
Verbindungen sicher und fest angeschlossen sind, bevor Sie Spannung anlegen.
4.9.1
Load Wiring
The following considerations should be made to select wiring for connecting the load to the power
supply:
•
Current carrying capacity of the wire (refer to Section 4.9.2)
•
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 (refer to Section 4.9.2)
•
Noise and impedance effects of the load wiring (refer to Section 4.9.5).
4.9.2
Current Carrying Capacity
Two factors must be considered when selecting the wire size:
•
Wires should have enough current carrying capacity to prevent 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.
•
Wire size should be selected to enable voltage drop per lead to be less than 1.0V at the rated
current. Although units will compensate higher voltage drop in each load wire (refer to the
specifications). It is recommended to minimize the voltage drop (1V maximum) to prevent
excessive output power consumption from the power supply and poor dynamic response to load
changes. Please refer to Table 4-2 for the recommended wires types to limit voltage drop in
American and European dimensions respectively.
