This part is a test specification for metal oxide varistors used in power supply lines, communication and signal systems of AC 1000V and below or DC 1500V and below to protect equipment, personnel or both from high transient voltages. . This specification applies to two-electrode MOVs and does not apply to hybrid devices. This specification also does not consider the impact of spare parts and their installation on MOV characteristics. The characteristics given apply only to MOVs installed in the manner described in the tests.
IEC 61643-331:2003 Referenced Document
GB 18802.1-2002 Surge protective devices connected to low-voltage power distribution systems--Part 1: Performance requirements and testing methods
GB/T 2421-1999 Environmental testing for electric and electronic products Part 1: General and guidance
GB/T 2423.22-2002 Environmental testing for electric and electronic products--Part 2: Test methods Test N: Change of temperature
GB/T 2423.28-2005 Environmental testing for electric and electronic products.Part2:Test methods-Test T:Soldering*， 2005-08-26 Update
GB/T 2423.6-1995 Environmental testing for electric and electronic products. Part 2: Test methods. Test Eb and guidance: Bump
IEC 60068-2-6:1995 Environmental testing - Part 2: Tests - Test Fc: Vibration (sinusoidal)
IEC 60068-2-78:2001 Environmental testing - Part 2-78: Tests; Test Cab: Damp heat, steady state
IEC 61643-331:2003 history
0000 IEC 61643-331:2020 RLV
2017IEC 61643-331:2017 Components for low-voltage surge protective devices – Part 331: Performance requirements and test methods for metal oxide varistors (MOV) (Edition 2.0)
2003IEC 61643-331:2003 Components for low-voltage surge protective devices - Part 331: Specification for metal oxide varistors (MOV)