This standard specifies the technical requirements, test methods, acceptance rules and delivery requirements for trapezoidal bars. JB/T 9612.2-1999 Electrical special-shaped copper bars and copper alloy bars Part 2: Trapezoidal bars JB/T9612.2-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Electrical Shaped Copper Bus Bar and Copper Alloy Bus Bar
Part 2: Trapezoidal Bus Bar
Shaped copper and copper alloy bus bar for electrical purposesPart 2: Trapezoidal bus bar
1 Scope
This standard applies to the manufacture of cold drawn or cold rolled trapezoidal bus bars for DC motor commutator segments. This standard specifies the technical requirements, test methods, inspection rules and delivery requirements for trapezoidal bus bars. This standard must be used together with JB/T9612.1. 2 Referenced Standards
JB/T9612.2-1999
Replaces ZBK13003.2---1987
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T466-1982
GB/T 468-1982
Copper classification
Copper wire ingot for electrical use
GB/T 3048.2-1994
GB/T4909.2--1985
GB/T4909.8-—1985
JB/T9612.1—1999
3 Model
The models of trapezoidal rows are shown in Table 1. bzxZ.net
THIIPT
TH12PT
Shape and specification
Electrical performance test methods for wires and cables
Resistivity test for metallic conductor materials
Test methods for bare wires-Dimension measurement
Test methods for bare wires-Hardness test
Electrical special-shaped copper busbars and copper alloy busbars
Part 1: General provisions
Trapezoidal copper busbars
Class I trapezoidal silver-copper alloy busbars
Class II trapezoidal silver-copper alloy busbars
The cross-sectional shape of the trapezoidal busbar is shown in Figure 1.
National Machinery Industry Bureau approved the chemical composition of the material on August 6, 1999.%
not less than
pot+silver
including silver
0.08~0.15
0.16~0.25
implemented on January 1, 2000
4.2 Trapezoidal row specifications are expressed by T/H/α.
4.3 The recommended nominal values ​​of trapezoidal row height H are as follows: JB/T9612.2--1999
10,11.2,12.5,14,16,18,20.22.4.25,28,31.5,35.5,40,45,50.56,63,71,80,90,100,112,125,132.140,150mm
4.4 Trapezoidal row cross-sectional size range
T≤24,H≤150.H/t≤50.
5 Technical requirements
5.1 Dimension deviation
5.1.1 Positive deviation is not allowed for the height and large bottom edge of the trapezoidal row. The height dimension deviation shall comply with the provisions of Table 2.
The large bottom dimension deviation shall comply with the provisions of Table 3. Table 2
10.0
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