Maintenance Safety - Sungrow SH5T User Manual

User Manual
1.5 Maintenance Safety
DANGER
Risk of inverter damage or personal injury due to incorrect service!
• Before maintenance, disconnect the AC circuit breaker on the grid side and
then the DC switch. If a fault that may cause personal injury or device damage
is found before maintenance, disconnect the AC circuit breaker and wait until
the night before operating the DC switch. Otherwise, a fire inside the product or
an explosion may occur, causing personal injuries.
• After the inverter is powered off for 10 minutes, measure the voltage and
current with professional instrument. Only when there is no voltage nor
current can operators who wear protective equipment operate and maintain the
inverter.
• Even if the inverter is shut down, it may still be hot and cause burns. Wear
protective gloves before operating the inverter after it cools down.
DANGER
Touching the power grid or the contact points and terminals on the inverter
connected to the power grid may lead to electric shock!
• The power grid side may generate voltage. Always use a standard voltmeter to
ensure that there is no voltage before touching.
CAUTION
To prevent misuse or accidents caused by unrelated personnel, post prominent
warning signs or demarcate safety warning areas around the product.
1 Safety Instructions
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