This standard mainly applies to electrical copper busbars. This standard must be used together with GB 5585-1985 Part 1. GB 5585.2-1985 Copper, aluminum and their alloy busbars for electrical purposes Part 2: Copper busbars GB5585.2-1985 Standard download and decompression password: www.bzxz.net

1 Scope of application
National Standard of the People's Republic of China
Copper or aluminium and its alloy bus bars for electrical purposes
Part 2: Copper bus bars
1.1 This standard is mainly applicable to electrical copper bus bars. 1.2 This standard must be used together with Part 1 of GB5585-85. 2 Guidelines for use
2.1 The copper bus bars in this standard can also be used for winding wire conductors. UDC621.315.51
GB5585.2-85
2.2 If the specifications in this standard are not large enough, it is allowed to extend to the required specifications according to the priority number system rules and manufacture in consultation with the manufacturer. 3 Models
The models of copper bus bars are shown in Table 1.
The specifications of copper bus bars shall comply with the provisions of Part 1 of GB5585-85. Technical requirements
The technical requirements for copper busbars shall comply with the provisions of Table 2. Table 2
Project namebzxz.net
Published by the National Bureau of Standards on November 20, 1985
Technical requirements
Comply with the provisions of Table 2, Article 6.1 of GB5585.1
Comply with the provisions of Table 3, Article 6.2 of GB5585.1
Comply with the provisions of Article 6.3 and Table 5 of GB5585.1Test type
Soft copper busbar
Hard copper busbar
Test method
GB4909.2-85
Implemented on October 1, 1986
Project name
Tensile strength
Elongation
Resistivity
5.2 Tensile strength and elongation
GB5585.2—85
Technical requirements
Conform to the provisions of Table 3 of Article 5.2 of this standard
Conform to the provisions of Table 3 of Article 5.2 of this standard
Conform to the provisions of Table 3 of Article 5.2 of this standard
Conform to the provisions of Table 4 of Article 5.3 of this standard
Conform to the provisions of Table 5 of Article 5.4 of this standard
Conform to the provisions of Chapter 11 of GB5585.1
The tensile strength and elongation of copper busbar shall conform to the provisions of Table 3. Table 3
5.3 Bending
Tensile strength (minimum)
Test type
Elongation (minimum)
Test method
GB4909.3—85
GB4909.385
GB4909.6—85
GB3048.2-83
GB3048.2—83
GB4909.285
Brinell hardness (minimum)
The copper busbar is bent 90 degrees with its edge. There should be no cracks on the surface. The diameter of the bent cylinder is selected according to the size of side a and should comply with the requirements of Table 4.
5.4 Resistivity
2.24~2.50
2.65~4.00
4.25~8.00
9.00~16.00
17.00~31.50
The resistivity of the copper busbar shall comply with the requirements of Table 5. Table 5
Resistivity P20 (not more than)
Qmm2/m
GB 5585.2-85
When calculating, the physical parameters of the copper busbar at 20℃ should take the following values:Density: 8.89g/cm3
Linear expansion coefficient: 0.000017.1/℃
Resistance temperature coefficient: TMR type 0.003931/℃TMY type 0.00381 1/℃
6Test
The product should be tested according to the provisions of Table 2.
Additional instructions:
This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the Shanghai Cable Research Institute of the Ministry of Machinery Industry. This standard was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery Industry and others. The person responsible for drafting this standard is Yuan Hesheng.
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