Investing in a photovoltaic system is very important in terms of clean energy and energy independence. However, in order to fully benefit from the advantages of photovoltaics, it is important to properly secure photovoltaic modules. In this article, we will discuss potential threats to PV systems, the effects of lack of security, and present comprehensive solutions that will ensure long-term and safe operation of the system. You will learn how to effectively secure a photovoltaic system against fire, surges, and other threats.
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What are the potential threats to photovoltaic modules?
Photovoltaics and energy storage are becoming increasingly popular. Photovoltaic installations, despite their reliability, are exposed to a number of potential threats. Understanding these risks is crucial to properly securing photovoltaic panels and the entire system. One of the main dangers when it comes to photovoltaic panels is atmospheric surges.
A lightning strike near the installation can cause a sudden increase in voltage, leading to damage to the modules and inverter. Equally dangerous when it comes to PV panels are short circuits, which can occur as a result of damage to the insulation of the wires or improper installation, posing a serious fire hazard.
Overheating is another problem that photovoltaic installations have to deal with. Excessive heating of panels, especially on hot days, can lead to a decrease in efficiency and a shortened service life of the installation. We cannot also forget about mechanical damage. Hail, strong wind or falling branches can physically damage photovoltaic modules, especially those mounted on the roofs of buildings.
Corrosion is a particular concern in rooftop installations where panels are exposed to changing weather conditions. Finally, grounding issues can increase the risk of electrical shock and equipment damage.
Consequences of lack of proper protection of photovoltaic modules
Neglecting the issue of securing a photovoltaic installation can lead to serious consequences. In extreme cases, an unsecured PV installation can be a source of fire, posing a threat to life and property. In addition, damaged or overheated panels significantly lose their efficiency, which translates into lower energy production.
Repair costs are another aspect to consider. Replacing damaged modules or inverters is a significant expense that can be avoided by using appropriate protection. A system failure also means having to return to grid power, which can result in higher energy bills. In the long term, lack of proper protection can significantly shorten the life of the entire photovoltaic system.
How to properly protect photovoltaic modules against fire?
Protecting photovoltaics from fire is a key aspect of safety. The basic element is the use of DC disconnectors, which allow for quick cutting off of the current in the event of a threat. Equally important is correct cabling, using wires with appropriate insulation and cross-section, adapted to the load of the installation.
Temperature monitoring is another important tool in the arsenal of protections. Systems that monitor the temperature of the panels and inverter can detect potential overheating early. Proper grounding of the installation minimizes the risk of fire from lightning.
Protection of photovoltaic modules against overvoltages
Surge protection is key to long-term, trouble-free operation of a PV installation. Surge arresters are a key element, used on both the DC and AC sides of the installation. Modern inverters often have built-in surge protection, which additionally increases system safety.
Galvanic separation, achieved by using isolation transformers, can additionally protect the installation from mains overvoltages. In practice, cable screening also plays an important role, reducing susceptibility to induced overvoltages.
Photovoltaic modules in the Onninen wholesaler
The Onninen installation wholesaler offers comprehensive solutions for photovoltaic installations, including high-quality photovoltaic modules and a wide selection of protections. The assortment includes advanced inverters with built-in protection functions, optimizing the operation of the entire PV installation. Mounting systems adapted to various types of roofs are also available, ensuring stable and safe mounting of the panels.
The offer includes a full range of electrical protections, including surge arresters, disconnectors and switches dedicated to photovoltaic installations. For those who value full control over the system, Onninen offers advanced monitoring solutions, allowing for ongoing control of the installation and early detection of potential problems.
Therefore, proper protection of the photovoltaic installation is a key element that determines the safety, efficiency and durability of the system. Investing in appropriate protection is not only the protection of the equipment, but above all a guarantee of user safety and stable production of clean energy.