
144 Project development in the solar industry
Other performance and safety tests are covered by international standards that
the product should comply with. The test certificate has to be applicable to the spe-
cific inverter model selected and the test has to be performed by a recognized testing
laboratory. There are a number of standards applicable to inverters that have been
drafted by different organizations (e.g. IEEE, UL, IEC, EN), although most of them
are equivalent. Most IEC standards for inverters are harmonized with the European
Standards (EN) and in many instances they can be more comprehensive than the IEEE
and UL standard, although ...