The inverter and the solar extension cable are the busiest components in the PV system, and also the components that need the most care in the PV system. An effective understanding of inverter-related safety knowledge can not only successfully complete the construction of photovoltaic system connected to the grid, but also minimize the electrical risk in the whole life cycle.
1. Common power safety labels for photovoltaic inverters (Note: When the photovoltaic system is working, it is forbidden to plug and remove the DC and AC terminals)
The Photovoltaic system has high voltage, pays attention to children, to prevent electric shock.
The local temperature may exceed 60 ° C when the PV module or inverter is running. Do not touch it to avoid burns.
Wait 5 minutes after power failure before touching the machine.
2, inverter related safety instructions and warnings
The inverter must be installed and maintained by professional construction personnel in accordance with local standards. Do not install it privately.
Before installing and maintaining the inverter, disconnect the DC input and AC power grids from the inverter, and do not touch the inverter for at least five minutes to avoid electric shock.
The operating temperature of the inverter may exceed 60 ° C. Do not touch it to avoid burns. The installation position of the inverter must be away from direct sunlight.
All electrical installation must comply with local electrical standards and obtain permission from the local power supply department before professional personnel connect the inverter to the grid.
Do not remove the cover without authorization, and do not touch or replace other components except the wiring terminals. Otherwise, the human body and the inverter may be damaged.
Ensure that the DC input voltage is smaller than the maximum input voltage of the inverter; otherwise, the inverter may be damaged.
Do not insert or remove the DC and AC connectors when the inverter is working.