1 Safety Instructions
Three-Phase UPS (10kVA-160kVA) Series
User Manual
6
1.2 Operation and Maintenance Requirements
There exists high temperature and high voltage inside the UPS. Please comply with the relevant
safety regulations and operation procedures during installation, operation and maintenance to avoid
human injury or device damage. The safety precautions mentioned in the user manual are just as a
supplement to the local safety regulations.
The related operation and wiring for the UPS should be performed by qualified professionals, and
ensure the electric installation accord with the electricity installation standards.
The installation and maintenance man should be trained and know about each safety announcements
and get the right operation method, and then, the installation, operation and maintenance can be done.
Mounting and dismantling power cables is prohibited when power on. Please switch off the power
switches before mounting or dismantling power cables. Before connecting, make sure the cable
connection, cable labels are in accordance with the actual installation.
Touching high voltage directly or through damp objects will lead to lethal risk.
Only authorized professionals are allowed to open the UPS! The input and output of the UPS are
dangerous high voltage. Touching high voltage will lead to lethal risk.
Before maintenance, please disconnect the AC power and battery to isolate the power input. It is
better to measure the input, output and battery terminals by a voltmeter to ensure the input power
is disconnected and in a safe condition.
Even if all external power are disconnected, there still exists residual electric charge on the
capacitance inside the UPS, and the output terminals may exists high voltage which may
endanger human life. It is necessary to set the UPS aside for enough time (≥10 min) to release all
charge before opening the UPS chassis.