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PV+ESS+Charger Solution
User Manual
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Issue 02 (2023-01-13)
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 off the switches of the
equipment and its upstream and downstream switches.
If any liquid is detected inside the equipment, disconnect the power supply
immediately and do not use the equipment.
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 specified 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 confirm that the bolts are tightened and then
mark them in red. (The marks should cross the edges of the bolts.)
After the installation is complete, ensure that protective cases, insulation
tubes, and other necessary items for all electrical components are in position
to avoid electric shocks.
If the equipment has multiple inputs, disconnect all the inputs before
operating the equipment.
Before maintaining a downstream electrical device supply or power
distribution device, turn off the output switch of its power supply equipment.
During equipment maintenance, attach "Do not switch on" labels near the
upstream and downstream switches or circuit breakers as well as warning
signs to prevent accidental connection. The equipment can be powered on
only after troubleshooting is complete.
Before fault diagnosis and troubleshooting, take the following safety
measures: Disconnect the power supply > Measure the power > Install a
ground cable > Hang warning signs and set up fences.
Do not open equipment panels.
Check equipment connections periodically, ensuring that all screws are
securely tightened.
Only qualified professionals can replace a damaged cable.
Do not scrawl, damage, or block any labels or nameplates on the equipment.
Promptly replace labels that have worn out.
Do not use solvents such as water, alcohol, or oil to clean electrical
components inside or outside of the equipment.
Copyright © Huawei Technologies Co., Ltd.
1 Safety Information
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