During the installation of PV strings and the inverter, the positive or negative
terminals of PV strings may be short-circuited to ground if the power cables are
not properly installed or routed. In this case, an AC or DC short circuit may occur
and damage the inverter. The resulting device damage is not covered under any
warranty.
Do not route cables near the air intake or exhaust vents of the equipment.
General Requirements
● Follow the procedures described in the document for installation, operation,
and maintenance. Do not reconstruct or alter the equipment, add
components, or change the installation sequence without permission.
● Obtain approval from the national or local electric utility company before
connecting the equipment to the grid.
● Observe the power plant safety regulations, such as the operation and work
ticket mechanisms.
● Install temporary fences or warning ropes and hang "No Entry" signs around
the operation area to keep unauthorized personnel away from the area.
● Before installing or removing power cables, turn o the switches of the
equipment and its upstream and downstream switches.
● Before performing operations on the equipment, check that all tools meet the
requirements and record the tools. After the operations are complete, collect
all of the tools to prevent them from being left inside the equipment.
● Before installing power cables, check that cable labels are correct and cable
terminals are insulated.
● When installing the equipment, use a torque tool of a proper measurement
range to tighten the screws. When using a wrench to tighten the screws,
ensure that the wrench does not tilt and the torque error does not exceed
10% of the specied value.
● Ensure that bolts are tightened with a torque tool and marked in red and blue
after double-check. Installation personnel mark tightened bolts in blue.
Quality inspection personnel conrm that the bolts are tightened and then
mark them in red. (The marks must cross the edges of the bolts.)
● If the equipment has multiple inputs, disconnect all the inputs before
operating the equipment.
● Before maintaining a downstream electrical or power distribution device, turn
o the output switch on the power supply equipment.
SUN2000-(12KTL-25KTL)-M5 Series
User Manual 1 Safety Information
Issue 10 (2024-05-14) Copyright © Huawei Digital Power Technologies Co., Ltd. 5
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