GB/T 12970.4-2009

Active

Flexilbe copper stranded conductors for electrical purposes - Part 4: Copper wires for electric brush

电工软铜绞线第4部分：铜电刷线

Standard Type

GBT

ICS

29.060.10

CCS

K11

Status

Active

Issue Date

2009-03-19

Implementation

2009-12-01

Centralized Committee

中国电器工业协会

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

GB/T 12970.4-2009 specifies the technical requirements, test methods, and acceptance criteria for copper wires used in electric brushes. This standard applies to the manufacturing and quality control of flexible copper stranded conductors that serve as the electrical connection between stationary and moving parts in motors, generators, and other rotating electrical machinery. It ensures reliable current transfer and mechanical flexibility in brush-commutator or brush-slip ring assemblies.

Related Standards

GB/T 19666-2005 Flame retardant and fire resistant wires and cables General GB/T 6108.3-2003 Basic dimensions of winding wires--Part 3: Dimensions of conductors of insulated rectangular copper winding wires GB/T 19216.21-2003 Tests for electric cables under fire conditions--Circuit integrity--Part 21: Procedures and requirements--Cables of rated voltage up to and including 0.6/1.0kV GB/T 19216.11-2003 Tests for electric cables under fire conditions--Circuit integrity--Part 11: Apparatus--Fire alone at a flame temperature of at least 750℃ GB/T 6108.2-2003 Basic dimensions of winding wires--Part 2: Maximum overall diameters of enamelled round winding wires GB/T 18889-2002 Electric cables-test methods for accessories for power cables with rated voltages from 6kV(Um=7.2kV)up to 35kV(Um=40.5kV) GB/T 18487.3-2001 Electric vehicle conductive charging system--A.C./D.C.electric vehicle charging station GB/T 18487.2-2001 Electric vehicle conductive charging system--Electric vehicles requirements for conductiveconnection to an A.C./D.C.supply

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.