GB/T 8320-2003
AbolishedCopper-tungsten and silver-tungsten electrical contacts
铜钨及银钨电触头
Application Summary AI generated
This standard specifies the technical requirements, test methods, inspection rules, and marking/packaging for copper-tungsten and silver-tungsten electrical contacts. It is applied in the manufacturing and quality control of contacts used in high-voltage circuit breakers, switchgear, and heavy-duty relays where high electrical and thermal conductivity combined with arc erosion resistance is critical. The standard ensures consistent performance in power distribution systems and industrial electrical equipment operating under high current and arcing conditions.
Related Standards
GB/T 5587-2003
Basic shapes，dimensions，symbolsand notations of silver based electrical contacts
GB/T 19404-2003
Microwave ferrite components--Measuringmethods for major properties
GB/Z 10962-2008
General rules of reliability for machine tool electrical components
GB/Z 28870-2012
Measuring methods for anti-EMI soft ferrite materials
GB/Z 28865-2012
Specification for anti-EMI soft ferrite materials
GB/T 9634.3-2002
Ferrite cores--Guide on the limits of surface irregularities--Part 3:ETD-cores and E-cores
GB/T 9634.2-2002
Ferrite cores--Guide on thelimits of surface irregularities--Part 2:RM-cores
GB/T 9634.1-2002
Ferrite cores--Guide on the limits of surface irregularities--Part 1:General specification
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.