Summer is simply a time erstwhile storms become common. It is no wonder that the owners of homes equipped with photovoltaic installations and those considering their installation frequently wonder if these devices attract lightning. We explain whether there is anything to fear and how to safe your photovoltaic installation.
Is photovoltaics a threat in a storm?
Lightning is the effect of equalizing electrical charges between a charged cloud and a point on the ground or between clouds. They are always looking for the shortest and best leading road, which means that they usually hit advanced and isolated objects. The most susceptible are therefore:
- Towers and needles
- Peaks of houses and buildings
- Antennas
- Shooting Trees
- Electrical networks
- High lanterns
Metal elements and moist surfaces further favour the transmission of electrical charges, which increases the hazard of lightning. Photovoltaic panels do not in themselves attract lightning. A key origin is the appropriate safety of the installation. If the photovoltaic is decently fitted and equipped with appropriate protective systems specified as grounding and overvoltage protection, the hazard of lightning strikes is minimal. Installations secured in this way do not accumulate electrostatic charges that could attract lightning.
Importantly, in the event of a lightning strike, energy will be discharged to the ground by the grounding system, preventing harm and fire. However, it is worth considering that inappropriate installation or usage of improper components can lead to problems specified as installation fires.
What else is worth knowing about photovoltaics during the storm?
During the storm, in addition to the direct threat of lightning impact, photovoltaic panels may be exposed to mechanical harm caused by strong wind, hail or falling branches. That's why it's crucial:
Correct Mounting
The photovoltaic installation should be made of the highest quality materials and installed by experienced professionals who will guarantee the safety and durability of the system.
Regular Reviews
Regular checks on the method condition of photovoltaic panels, their cleaning and maintenance are essential to keep their performance and safety.
Appropriate safeguards
The installation shall be equipped with protective systems specified as grounding and surge protection. It is besides worth considering additional building marking, which can aid emergency services in case of fire.
Response to Damage
After each storm, it is worth checking the installation status. In case of any irregularities, experts should be called upon to measure and repair the panels.
Causes of photovoltaic strategy fires
Although photovoltaic installations fires are rare, they can happen, especially if the installation has been performed incorrectly. The main causes of the fires are:
- Mounting errors, specified as the usage of inappropriate connectors and cables
- Microfractures of panels leading to corrosion and overheating
- Hotspots, or points with elevated temperature on panels
How to guarantee the safety of photovoltaics?
In case of fire, it is essential to rapidly disconnect the strategy from the power supply and to usage suitable fire extinguishers, preferably powder ones, while maintaining a safe distance. Regular inspections and service of photovoltaic installations all 5 years are an crucial origin that will let us to take care of security. It's essential to keep her fitness and safety. Importantly, the documentation of these reviews may be required by insurers in case of damage.
Please besides bear in head the notification and correct marking of the installation above 6.5 kW. specified devices request to be agreed with the fire safety expert and notified to the State Fire Department.
Another crucial component is the correct mechanical protection of the installation. Ground mounted panels are little susceptible to overheating and harm than roof mounted panels. It is so worth considering the location of the installation in little susceptible places.
Photovoltaics, if decently mounted and secured, do not pose a threat during the storm. Regular checks, adequate safeguards and appropriate installation guarantee the safety and efficiency of photovoltaic installations. With these measures, ecological and economical energy can be enjoyed without fear of the effects of storms and another utmost weather phenomena.
Read more:
Photovoltaic in a storm. Do solar panels attract lightning?
