Roof fire in Klipphausen: Photovoltaic system causes total loss!

Roof fire in Klipphausen: Photovoltaic system causes total loss!

On Sunday afternoon, the community of Klipphausen was hit by a shocking incident: a single-family home in the Bockwen district caught fire. Loud Sächsische.de The photovoltaic system on the roof caught fire, which ultimately led to the roof structure partially collapsing. Fortunately, the residents were not in the house at the time of the incident, so there were no injuries, but the building is now uninhabitable.

The fire departments from Klipphausen, Meißen, Coswig and Weinböhla were quickly on site and used several jet pipes to bring the fire under control and ultimately extinguish it. The police have already started an investigation into the cause of the fire to find out how this dangerous incident could have happened.

Safety risks of photovoltaic systems

The risk of fire in photovoltaic systems is a topic that is increasingly coming into focus. A fire can be caused by various factors, such as installation errors and defects in planning or products. This was also confirmed by the results of an extensive research project by experts from Germany and Switzerland, who examined the fire risks in solar systems for almost four years. The findings were published in a free, over 300-page guide, which makes it clear that while over 1.5 million solar systems are in operation in Germany, clear information about safety precautions is urgently needed.

As the guide shows, the risk of fires can be further reduced through targeted measures, including improved qualification of installers and technical inspections. Florian Reil from TÜV Rheinland emphasizes that although fire risks are small, they should not be ignored. The situation is particularly critical when it comes to the high voltage in photovoltaic systems, where up to 1,500 volts can be present - even if the system is disconnected from the power grid. This can make the work of the fire brigade significantly more difficult, as the high direct voltages can lead to arcs that endanger the emergency services.

Firefighting recommendations

In order to ensure the safety of the fire brigade, it is recommended, according to the VDE guideline VDE-AR-E 2100-712, that DC lines be switched down to below 120 volts as quickly as possible as soon as the AC side is switched off. In addition, it is recommended to install DC isolating switches with remote triggering or special shutdown devices near the modules. However, these are often not optimally placed, which can lead to dangerous voltages on long cable routes.

The fire department's alertness and the need for well-planned safety protocols are urgent in this context. Particularly in the case of the fire in Klipphausen, it is clear that despite the increasing use of renewable energies, the safety of human lives and buildings must have top priority.

The issue of safety precautions around photovoltaic systems is also considered urgent by many experts, especially in line with the aging of the materials. A look at the above guide shows that regular checks and new technologies such as arc flash detectors can reduce the risk of fire.

Overall, it remains to be hoped that through increased education and technical optimization, the high potential of solar technology can be exploited without posing a risk to building safety and emergency services.