The internal arc test on pole-mounted equipment is taken out of IEC 62271-200 and is now covered by the specific standard IEC 62271-214:2019. KEMA Labs already performed tests in accordance with this new standard .
Internal arc testing in accordance with IEC 62271-200
For internal arc testing in accordance with IEC 62271-200 for the metal-enclosed switch- and control gear the pass/fail criteria have been further clarified to give stricter guidance on the burning of indicators. In Criterion 4 of the standard, a 1-second rule was introduced during IAC tests regarding hot gases versus glowing particles as the cause of ignition. Any indicator burning within 1 second after the test is considered a failure to meet criterion 4 of the standard.
A more efficient test on interlocks in accordance with the standard
The number of mechanical tests on interlocks is reduced for type testing. At the same time, a more precise description of forces to apply during type testing is given. The two changes together allow KEMA Labs to have a more efficient test on interlocks in accordance with the standard.
For the dielectric tests and the continuous current test, the changes are comparable with the changes that are applicable for IEC 62271-103 .