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GB/T 5585 Copper or aluminium and its alloy bus bars for electrical purposes consists of two parts:
— Part 1: Copper and copper alloy bus bars;
— Part 2: Aluminium and aluminium alloy bus bars.
This part is Part 1 of GB/T 5585.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part replaces GB/T 5585.1-2005 Copper or aluminium and its alloy bus bars for electrical purposes — Part 1: Aluminium and aluminium alloy bus bars, and the following main technical changes have been made with respect to GB/T 5585.1-2005:
— modified the name of the copper alloy bus bars, changing all the terms “silver-copper alloy” to “copper-silver alloy” (see 4.1; 3.2 and 4.3 of Edition 2005);
— standardized codes and product representation methods (see 4.1, 4.2; 3.2 and 3.3 of Edition 2005).
— modified the chemical composition of copper alloy bus bars (see Table 2 in 5.3; Table 1 in 4.3 of Edition 2005).
— added the table note in “Table 3 copper and copper alloy bus bar dimensions” (see Table 3; Table 2 of Edition 2005);
— standardized the expression of the test classification (see 8.1; 7.1 of Edition 2005);
— modified the expressions for marking (see 9.3; 8.3 of Edition 2005);
This standard was proposed by the China Electrical Equipment Industrial Association.
This part is under the jurisdiction of National Technical Committee on Bare Wires of Standardization Administration of China (SAC/TC 422).
The previous edition of this standard is as follows:
— GB 5585.1-1985;
— GB 5585.2-1985;
— GB/T 5585.1-2005.
Copper or aluminium and its alloy bus bars for electrical purposes — Part 1: Copper and copper alloy bus bars
1 Scope
This part of GB/T 5585 specifies the code, product representation method, technical requirements, test, delivery length and mass, acceptance rules, product certificate, packaging, marking, transportation and storage of the copper and its alloy bus bars for electrical purposes.
This part is applicable to the copper and its alloy bus bars for electrical purposes (also called copper and copper alloy row).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 321 Preferred numbers — Series of preferred numbers
GB/T 2900.10 Electrotechnical terminology — Electric cables
GB/T 3048.2 Test methods for electrical properties of electric cables and wires — Part 2: Test of electrical resistivity of metallic materials
GB/T 4909.2 Test methods for bare wires — Part 2: Measurement of dimensions
GB/T 4909.3 Test methods for bare wires — Part 3: Tensile test
GB/T 4909.6 Test methods for bare wires — Part 6: Bend test — Single bend test
GB/T 4909.8 Test methods for bare wires — Part 8: Hardness test — Brinell hardness test
GB/T 5121.1 Methods for chemical analysis of copper and copper alloys — Part 1: Determination of copper content
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2900.10 and the following apply.
3.1
dimensions
dimension of the bus bar, which is represented by the nominal size a × b of the thickness and width of the bus bar section
3.2
straightness
maximum vertical distance of any point on a datum plane for which any plane of the bus bar is stationary on the datum plane
4 Code and product representation method
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.
Table 1 Code of copper and copper alloy bus bars
Code classification Code Name
Material type code a TM Copper bus bar
TH11M Class I copper-silver alloy bus bar
TH12M Class II copper-silver alloy bus bar
Cross-sectional shape code b B Round edge
Q Full round edge
State code R Soft
Y Hard
a Different types of alloys are represented by the first digit after “H”, and “1” represents copper-silver alloy; alloys with the same type but different contents are represented by the second digit after “H”.
b When the cross-sectional shape of bus bar is rounded, its cross-sectional shape code is omitted.
4.2 Product representation method
4.2.1 The composition and arrangement order of product models are material type code, cross-section shape code and state code in turn.
4.2.2 The products shall be expressed by model, dimensions and standard number.
4.2.3 Product representation examples
Example 1: TH11MY 10 × 100 GB/T 5585.1-2018 represents that:
Class I copper-silver alloy bus bar with fillets, thickness of 10.00 mm, width of 100.00 mm, and in hard state.
Example 2: TMBR 10×100 GB/T 5585.1-2018 represents that:
Copper bus bar with rounded edges, with 10.00 mm in thickness and 100.00 mm in width, and in soft state.
5 Technical Requirements
5.1 Cross-section shape of copper and copper alloy bus bars
The cross-section shapes of bus bar are as shown in Figure 1. The circular arc of the round edge cross-section of bus bar shall be completely symmetrical with respect to the product axis, and the transition treatment shall be carried out at the corner of the circular arc. The radius "r" of the rounded edge of the full rounded edge bus bar shall be half of the thickness "a". The radius "r" and its deviation of fillet, round edge and full round edge shall meet the requirements of 5.5.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Code and product representation method
5 Technical Requirements
6 Tests
7 Delivery length and mass
8 Acceptance rules
9 Product certificate, packaging, marking, transportation and storage
