Many people think that photovoltaic power plants are powerful and have high power generation in summer, but they care little about power plants. In fact, if the temperature is too high, the air humidity is too high, coupled with severe weather such as heavy rainfall and thunderstorms, it will often bring negative impacts or even safety hazards to photovoltaic power plants. What should we do?
keep ventilation
Whether it is a module or an inverter, the distribution box must be ventilated to ensure air circulation. For the components of the rooftop photovoltaic power station, it is important not to unreasonably arrange the components of the photovoltaic power station in order to generate more power, causing the components to block each other, and at the same time affecting the heat dissipation and ventilation, resulting in low power generation.
So, be careful if someone tricks you into installing a few more components in a limited area. Reliable brand manufacturers will provide the most reasonable design on the premise of maximizing power generation according to your roof situation before installation, rather than requiring you to install a few more components.
For the owners of photovoltaic agricultural greenhouses, ventilation should be considered, and ventilation openings can be set up in the blind area of the light behind the greenhouse, so as to ensure that the temperature of the operating environment of the photovoltaic power station is suitable to the greatest extent without affecting the growing conditions of crops.
There are sundries around the photovoltaic power station to be cleaned up in time
To avoid affecting the heat dissipation of the photovoltaic power station, it is necessary to ensure that the photovoltaic modules, inverters, and distribution boxes are open around.
Build a parasol for the inverter distribution box
Household inverters are generally IP65 rated, with a certain degree of wind, dust and water resistance. However, when the inverter and distribution box work, they also need to dissipate heat. Therefore, when installing the inverter and distribution box It is best to install it in a sunshade and rain-proof place. If it must be installed in the open air, make a simple awning for the inverter and power distribution box to prevent direct sunlight. Avoid making the temperature of the inverter and distribution box too high, which will affect the power generation.
What to do in bad weather?
lightning strike
For lightning protection, the most effective and widely used method is to connect the metal parts of electrical equipment to the ground. Electric welding or gas welding is used for the connection part, and tin welding cannot be used! If it is impossible to weld on site, riveting or bolt connection can be used. To ensure the contact surface of more than 10cm2, the buried depth of the grounding body is preferably more than 0.5~0.8m. Remember that the backfill must be compacted.
heavy rain
If your roof is a sloping roof, you don't have to worry at all. If your house has a flat roof, it is best to consider the drainage problem when designing and installing a photovoltaic power station. Avoid when the rainfall is too heavy, the PV modules will be soaked by the rain due to the relatively low bracket installation of the flat roof.
When patrolling after rain, be sure not to directly touch the connection between the inverter, photovoltaic modules and power supply cables with your hands, and wear rubber gloves and rubber boots.
hail
Qualified photovoltaic power station products purchased from large reliable manufacturers, photovoltaic modules have been tested by hail at a speed of 23m/s, so generally hail will not affect photovoltaic modules.
However, after the hailstorm, daily inspections are also essential. If the power generation of the photovoltaic power station drops significantly or other abnormal conditions occur after the hailstorm, the owner must promptly notify the manufacturer's after-sales personnel for inspection.
Regular inspection and cleaning
After the photovoltaic power station is built, the operation and maintenance should not be too sloppy, especially in summer, it is best to conduct regular inspections to ensure that the photovoltaic power station has good heat dissipation, air can be circulated, and weeds and shades that affect heat dissipation are removed in time. Only in this way can the power generation and operation of the photovoltaic power station be guaranteed.
At the same time, the photovoltaic panels that have not been cleaned for a long time will accumulate a lot of dust on the surface. Even if it has rained, since the installation angle of the photovoltaic panels is not very large, dust accumulation will be formed on the lower half of the photovoltaic panels, so it is necessary to Artificial cleaning. Rinse with clean water first, then wipe it with a cloth mop.