Harmonic NSG 9108, Установка оборудования

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54 Wiring Requirements
APPENDIX B
Overcurrent Protection
To provide overcurrent protection:
■
Provide overcurrent protection devices as part of each rack housing
NSG devices.
■
Locate readily accessible disconnect device between the DC power
source and the NSG.
■
Use a 10-amp double-pole fast trip, DC-rated disconnect device for
each DC power connector.
Note: Overcurrent protection devices must meet applicable national
and local electrical safety codes and be approved for the intended
application.
Wiring Requirements
The NSG is connected to the DC power source using three wires:
■
–Vin
■
GND
■
+Vin
Although Harmonic provides the power input connector with the NSG
device, you must supply the wires.
The wires to be used must comply with the following specifications:
n
Parameter Specification
Suitable conductor material Copper only
–Vin and +Vin wires 16 AWG rating
Ground cable 16 AWG rating
Cable insulation rating Minimum 80 C, low smoke fume (LSF), flame
retardant