By installing a solar system on the roof of your home, you are not only contributing to the energy transition in Germany, but you are also able to reduce your own energy costs in the medium term. More and more homeowners are now opting for a solar power system on their roof, thereby driving forward the production of green electricity.
A photovoltaic system is not only good for the environment and ensures more sustainability in modern and increasingly green everyday life, but also means a lot of responsibility. Regular maintenance and inspection of photovoltaic systems is mandatory in Germany. The so-called DGUV V3 test presents the Basis for accident prevention In order to ensure safe and proper operation of a photovoltaic system, a specialist must be commissioned to carry out an inspection every year. Newly built systems must also be checked for DGUV Regulation 3 so that the solar system and all associated components can be inspected.
Here you can find out how the inspection of solar systems is carried out and what homeowners should bear in mind during an inspection. The following gives you an overview of the process of inspecting solar systems.
1. Recurring audit on legal bases
A solar system is a highly complex technical system and may only be put into operation after professional installation. After the first operational acceptance, a recurring inspection is carried out after presentation of the DGUV-A3earlier BGV-A3to ensure safe and proper operation. Solar systems also include all other technical connections, so that a Testing of portable electrical equipment takes place.
Not only is the performance of solar systems regularly tested, but they are also fully checked every four years. Even without the legal regulations, regular maintenance and inspection of the photovoltaic system makes a lot of sense, as they are also of great relevance from an insurance perspective. If a solar module is damaged, careful documentation is necessary. This includes all evidence of necessary safety work and inspections. Only if there is complete documentation is it possible to receive compensation from the insurance company in the event of damage. A check of the system configuration and technical components therefore also protects against high financial losses.
1.1. Testing by a qualified electrician or testing organization
Every four years, solar systems are inspected by private individuals. Either a specialist from an electrical company or a testing organization is responsible for the maintenance and testing of the photovoltaic system. The most important criterion for the recurring inspection is very precise documentation in order to be able to detect any problems at an early stage. The following inspection points are taken into account for a solar system:
- Visual inspection for defects in cable harnesses or damage to insulation
- Functional test by an inverter
- Comparison of data: System configurations are compared with the measured data. Changes to the system are immediately noticeable.
- Metrological inspection of the system: insulation resistance, total power, short-circuit current
The duration of the test depends on the size of the solar system and the associated building technology components. Accordingly, a solar heating system should also be checked in order to be able to make ideal use of the heating energy generated. An effectiveness test, in which all protective measures of the solar systems are examined, is also one of the test points.
After the test, however, operators of solar systems should not just rely on the test seal. It is therefore recommended that the inverter is checked daily in order to identify any defects at an early stage.
Further information at: https://de.wikipedia.org/wiki/Unfallverh%C3%BCtungsregulations