This standard is mainly applicable to electrical aluminum busbars. This standard must be used together with GB 5585-85 Part 1. GB 5585.3-1985 Copper, aluminum and their alloy busbars for electrical purposes Part 3: Aluminum busbars GB5585.3-1985 Standard download and decompression password: www.bzxz.net

1 Scope of application
National Standard of the People's Republic of China
Copper or aluminum and its alloy bus for electrical purposes
Part 3: Aluminum busbar
Copper or aluminum and its alloy bus barsfor electrical purposes
part 3: Aluminum bus bar
1.1 This standard is mainly applicable to electrical aluminum bus bars. 1.2 This standard must be used together with GB5585-85 Part 1. 2 Guidelines for use
2.1 The aluminum busbars in this standard can also be used as winding wire conductors. UDC621.315.53
GB5585.3-85
2.2 If the specifications of this standard are not large enough, it is allowed to be extended to the required specifications according to the priority number system rules and negotiated with the manufacturer. 3 Model
The model of aluminum busbar is shown in Table 1.
Table 1
Type
LMR
LMY
Specifications
No.
Status
o| |tt||H
State
The specifications of the aluminum busbar should comply with the provisions of GB5585-85 Part 1. 5 Technical requirements
5.1 The technical requirements of aluminum busbars shall comply with the provisions of Table 2. Table 2
Serial number
1
1.1
1.2
1.3
Project name
Size
axb
deviation
rounded corners
issued by the National Bureau of Standards on November 20, 1985
technical requirements
comply with the provisions of Table 2 of Article 6.1 of GB5585.1
Conforms to the provisions of Table 4 of Article 6.2 of GB5585.1
Conforms to the provisions of Article 6.3 and Table 6 of GB5585.1 Test type
T,S
Name||tt ||Weighing
Soft aluminum busbar
Hard aluminum busbar
Test method
GB4909.2—85
Implemented on 1986-10-01||tt ||Serial number
2
3
4
5
6
7
Project name||tt| |Tensile strengthbZxz.net
Elongation
Hard
Degree
Bending
Curved
Resistivity
Straight| |tt||Degree
5.2 Tensile strength and elongation
GB5585.3—85
Continued Table 2
Technical requirements
Conform to this Table 3 of Article 5.2 of the standard
Conforms to the provisions of Table 3 of Article 5.2 of this standard
Not applicable
Conforms to the provisions of Table 4 of Article 5.3 of this standard
Conforms to this standard Article 5.4 stipulates
Comply with the provisions of Chapter 11 of GB5585.1
The tensile strength and elongation of the aluminum busbar shall comply with the provisions of Table 3. Table 3
Full
Type
No.
LMR
LMY
5.3 Flexural
Tensile strength (minimum)
N/mm2
68.6
118
Part
Test type
T,s
T,s| |tt||T,s
T,s
T,s
Specification
Grid
Test method
GB4909.3 —85
GB4909.3—85
GB3048.2—83
GB3048.2—83
GB4909.2—85
Elongation (Minimum)
%
20
3
The aluminum busbar is bent at 90° with 6 sides. There should be no cracks on the surface. The diameter of the bent cylinder is selected according to the size of side a. must comply with the requirements of Table 45.3.1
.
Table 4
standard
5.4 resistivity
scale
foot
2.24~2.50
2.65~4.00| |tt||4.25~8.00
9.00~16.00
17.00~31.50
inch
The resistivity of the aluminum busbar should comply with the requirements in Table 5. Table 5
type
LMR
LMY
No.
bent
curved
10
16
32
64
126
Straight
Diameter
Resistivity P20 (not greater than)
2.mm2 /m
0.028264
0.0290
mm
GB5585.3-85
When calculating, the physical parameters of the aluminum busbar at 20℃ should be as follows Value: Density: 2.703g/cm3
Linear expansion coefficient: 0.000231/℃
Temperature coefficient of resistance: LMR type 0.004071/CLMY type 0.004031/C
6 Test
Products should be tested as specified in Table 2.
Xie Jia’s explanation:
This standard was 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. Yuan Hesheng is the person in charge of drafting this standard.
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