● Ensure that all electrical connections comply with local electrical standards.
● Ensure that the cables used in a grid-tied PV power system are properly
connected and insulated and meet specications.
● The output wiring terminals of the optimizer are not hot-swappable. If the
terminals are hot-swapped, the optimizer may be damaged.
Operation
High voltage from the optimizer in operation may cause an electric shock,
resulting in serious property damage, injury, or death. Strictly comply with the
safety precautions in this document and other related documents when operating
the optimizer.
● Do not touch the optimizer in operation as its surface temperature is high and
may cause burning.
● When operating the equipment, comply with local laws and regulations.
Maintenance and Replacement
High voltage from the optimizer in operation may cause an electric shock,
resulting in serious property damage, injury, or death. Before maintenance, power
o the optimizer and strictly comply with the safety precautions in this document
and other related documents when operating the optimizer.
● Maintain the optimizer with proper understanding of this document and
appropriate tools and testing equipment.
● Place temporary warning signs or erect fences to prevent unauthorized access
to the maintenance site.
● The optimizer can be powered on only after all faults are
rectied. Otherwise,
faults may escalate or equipment may be damaged.
● Observe ESD precautions and wear ESD gloves during maintenance.
MERC Smart PV Optimizer
User Manual 1 Safety Precautions
Issue 02 (2022-09-20) Copyright © Huawei Digital Power Technologies Co., Ltd. 3
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