Firefighter safety in PV installations
Firefighter safety is an essential consideration when designing and installing solar panel systems. In emergency situations, first responders must be able to intervene quickly and safely. A well-prepared system takes this into account right from commissioning.
Clear access and layout diagrams
One of the key principles of firefighter safety is proper accessibility to the installation. This includes clear layout diagrams with marked risk zones and easily accessible disconnect switches. This enables firefighters to respond quickly and effectively during emergencies.
Disconnecting DC voltage in emergencies
In the event of a fire or other incident, it is crucial to immediately disconnect the voltage on the DC lines. Due to sunlight on the solar panels, the DC infrastructure almost always remains live, even if the inverter is switched off.
This residual voltage can hinder firefighting efforts. To support emergency responders as much as possible, it is recommended to provide a clear overview of the indoor DC infrastructure, keep DC cabling outside the building where possible, and apply firefighter switches, particularly when DC cabling runs inside the premises. Solutions such as FireRaptor and FireSwitch are suitable for this purpose.
Also important for building owners
In addition to ensuring firefighter safety, there is a significant role for insurers, installers, and building owners. By structurally reducing risks and ensuring inspectability, damage can be minimised and system reliability maintained.