A fireman’s switch, also known as a fireman’s switch or PV cut-off switch, is used in conjunction with PV systems to facilitate disconnection of power in the event of a fire or other emergency. There are several important reasons why a fire protection switch should be installed in connection with photovoltaics:
1. Fire safety: PV systems generate electricity from the sun’s rays and can be connected to the grid. In the event of a fire, it can be dangerous for emergency personnel to work near active photovoltaic systems because of the risk of electric shock. A fire brigade switch enables a quick and easy disconnection of the power supply to the PV system, reducing the risk of damage and facilitating fire-fighting operations.
2. system maintenance: The fireman’s switch also allows maintenance personnel or PV installers to safely perform work on the PV system by disconnecting the power. This is important for carrying out regular inspections, maintenance and possible servicing of the system.
3. grid connection: If the PV system is connected to the grid, the fire brigade switch can be used to disconnect the power supply from the PV cells to the grid in case of emergency. This can help to prevent possible power reductions or dangerous conditions for electricians during repairs or maintenance of the electricity network.
It is important to note that the requirements and regulations for photovoltaic installations and fire switches may vary between countries and regions. It is always recommended to consult local regulations and experts in the field to ensure that the PV system is properly installed and equipped in terms of fire safety.