GB/T 5585.1-2018Copper or aluminium and its alloy bus bars for electrical purposes—Part 1: Copper and copper alloy bus bars (English PDF)

3.1 Dimensions

Dimensions of bus bars, which are indicated by the nominal dimensions a × b of the cross-sectional thickness and width of bus bars.

3.2 Straightness

Any plane of the bus bar is statically placed on a reference plane, and it is the maximum vertical distance from any point on the plane to the reference plane.

4.1 Code

The code classification of copper and copper alloy bus bars includes material type code, cross-sectional shape code and state code, as shown in Table 1.

4.2 Product representation method

4.2.1 The composition and order of the product model are the material type code, cross-sectional shape code and state code in turn.

4.2.2 The product is represented by the model, specification and standard number.

5.1 Cross-sectional shape of copper and copper alloy bus bars

The cross-sectional shape of bus bars is shown in Figure 1. The arc of the cross-section of rounded-edge bus bars shall be completely symmetrical with respect to the product axis, and the corner of the arc shall be transitioned.

5.3 Chemical composition of copper and copper alloy bus bars

The chemical composition of copper and copper alloy bus bars shall comply with the requirements of Table 2.

5.4 Dimensions and deviations

5.4.1 The cross-sectional dimension range of copper and copper alloy bus bars are.

5.5 Rounded corner and rounded edge radius of copper and copper alloy bus bars

5.5.1 When a <= 6.30 mm, there may be rounded corners with a radius of not more than 1.5 mm. When a >= 6.70 mm, there may be rounded corners with a radius of not more than 2.0 mm.

5.6 Cross-sectional area of copper and copper alloy bus bars

5.6.1 The cross-sectional area S of rounded-corner copper and copper alloy bus bars is calculated according to formula (1), in square millimeters (mm²).

S = a × b - 0.858r² (1)

5.8 Mechanical properties

5.8.1 Tensile strength, elongation and hardness

The tensile strength, elongation and hardness of copper and copper alloy bus bars shall comply with the requirements of Table 9.

5.10 Joints

Finished copper and copper alloy bus bars are not permitted to have joints.

5.11 Surface quality

5.11.1 The surface of copper and copper alloy bus bars shall be smooth and flat and shall not have any defects that are not commensurate with good industrial products.

8.1 Test classification

8.1.1 The test types specified in this Part are divided into routine test (code R), sampling test (code S) and type test (code T).

8.1.2 Each batch of products shall be subjected to routine test (i.e. test of all delivered products) and sampling test. Each batch of products shall be subjected to routine test and sampling test by the quality department of the supply party, and they shall be qualified before exiting the factory.

8.1.4 The test items and test types shall comply with the requirements of Table 12.

8.2 Sampling rules

The sampling rules of products shall be determined by agreement upon the supply and demand parties. If the demand party does not request, it is implemented according to the provisions of the supply party.

9.1 Product certificate

Each package shall be accompanied by a product certificate issued by the supply party's quality inspection department. Each batch of products shall be accompanied by a factory-exit inspection report issued by the supply party's quality inspection department.

9.2 Packaging

When delivered by length, they shall be packed in bundles or in boxes. When delivered by weight, they shall be packed in coils, loops or bundles. Each package shall be of the same model, the same specification, in rolls or in trays, and the product shall be a whole.

9.3 Marking

Each package shall bear a label indicating. […]