This technical specification sets forth a uniform approach to maintain the type approval of terrestrial PV modules that have undergone, or will undergo modification from its originally assessed form.
DIN IEC/TS 62915:2021 history
2021DIN IEC/TS 62915:2021 Photovoltaic (PV) modules - Type approval, design and safety qualification - Retesting (IEC TS 62915:2018)