IEC 62446-1:2016 is the international standard that defines the required electrical tests, documentation, and reporting for verifying the performance and safety of grid-connected photovoltaic (PV) systems. It is most commonly applied during commissioning, routine maintenance, or fault investigations — ensuring that the electrical characteristics of a solar installation meet design expectations and operational safety requirements. As part of our optional string-level electrical testing service, we carry out non-invasive tests in accordance with IEC 62446-1 to assess the DC-side health of [...]

All electrical tests follow the requirements of IEC 62446-1:2016 and measurement principles from IEC 61829 for I-V curve tracing. This ensures your results are suitable for use by contractors, insurers, or O&M teams.

No — all electrical testing is performed non-invasively from ground level using industry-grade instruments. We do not access internal inverter components or climb onto the roof. This ensures safety and minimal disruption during inspection.