20 Chapter 2 Installation
ECM3 Series Outdoor Power System User Manual
Chapter 2 Installation
This chapter introduces installation and cable connection. Read the safety rules carefully before installation, and
strictly follow the instructions provided in this chapter to carry out the installation and cable connection.
2.1 Safety Regulations
Certain components in this power system have hazardous voltage and current. To ensure personnel safety, always
follow the instructions below:
1. Only trained personnel with adequate knowledge of the power system is allowed to carry out the installation. The
Safety Precautions
listed before the
Contents
of this manual and local safety rules in force have to be adhered to
during installation.
2. All external circuits below -48V connected to the power system must comply with the SELV requirements defined in
IEC 60950.
3. Do not operate or maintain the power system under thunderstorm or humid weather!
4. Make sure that the power system is powered off before any operation carried out within the system.
5. The power cables should be routed and protected properly, so that the cables are kept away from the operation
and maintenance personnel.
6. Connect the field cable and tighten the screw according to the screwing torque shown in Table 2-1, to avoid torque
too large or too small when tightening the cable.
Table 2-1 Screwing torque
Spec.
Screwing torque (unit:
㎏
f
﹒
cm) (torque range: ±10%) (connection rating 4.8)
M5
30
M6
45
M8
110
M10
220
M12
390
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. Then check the quantity and sequence number in
the packing label, check if the equipment packing is correct, and check if the accessory quantity and model are
correct, and check if the equipment is intact.
Preparing cables
The cable selection should meet relevant industry standards. It is recommended to use the RVVZ cables as AC
cables. The cable should reach at least +70°C temperature durability. When the cable length is 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
16mm
2
.
