10 Chapter 2 Installation Instruction
NetSure 731 CC2, NetSure 731 C62 Series Power Supply System User Manual
Chapter 2 Installation Instruction
This chapter introduces installation and cable connection. Before installation, please read through the safety
regulations, and then follow the instructions in this chapter to carry out the installation and connection.
2.1 Safety Regulations
Certain components in this power system carry hazardous voltage and current. Always follow the instructions below:
1. Only adequately trained personnel with satisfactory knowledge of the power supply system can carry out the
installation. The Safety Precautions listed before the Contents
of this manual and local safety rules in force shall be
adhered to during the installation.
2. All external circuits that are below -48V and connected to the power system must comply with the requirements of
SELV defined in IEC 60950.
3. Make sure that the power (mains and battery) to the power system is cut off before any operations can be carried
out within the cabinet.
4. The power system shall be kept locked and placed in a locked room . The key keeper should be the one
responsible for the power system.
5. The wiring of the power distribution cables should be arranged carefully so that the cables are kept away from the
maintenance personnel.
2.2 Preparation
Unpacking Inspection
The equipment should be unpacked and inspected after it arrives at the installation site. The inspection shall be done
by representatives of both the user and Vertiv Tech Co., Ltd. To inspect the equipment, you should open the packing
case, take out the packing list and check against the packing list that the equipment is correct and complete. Make
sure that the equipment is delivered intact.
Note
1. When delivered with the cabinet, the rectifier should be placed at the bottom of the cabinet subrack.
2. If the system need to configure fuse extractor, it should be strapped at the he bottom of the cabinet subrack.
Cable Preparation
The cable should be selected in accordance with relevant industry standards.
It is recommended to use the RVVZ cables as AC cables . The cable should reach at least 70°C temperature
durability. Select the AC cable CSA according to Table 2-1.
Table 2-1 AC cable CSA selection
Connector
Specifications
AC cable CSA
AC input MCB
1 × 63A/3P MCB, 3 H-shape tubal terminals
≤ 35mm
2
AC input neutral busbar
1 M8 tubal OT terminal
≤ 25mm
2
AC output MCB
1 × 16A/1P MCB, one H-shape tubal terminal
(CC2-X1/X2, C62-X1/X2)
≤ 10mm
2
1 × 16A/3P MCB and 1 × 16A/1P MCB, 4 H-shape tubal terminals
(CC2-X3/X4, C62-X3)
AC output neutral busbar
2 M6 screw s
Note: With cable length shorter than 30m, the CSA calculation should be based on the current density of 2.5A/mm
2
. The
suggested CSA value is not smaller than 15mm
2
The CSA of DC cable depends on the current flowing through the cable, the allowable voltage drop and load peak
current. The recommended load peak current is 1/2 to 2/3 as large as the MCB or fuse capacity.
