The provisions of this standard are consistent with those of IEC 111, 21, 207, 209. This standard is applicable to the manufacture of round aluminum wires for wires, cables, motors and electrical appliances. GB/T 3955-1983 Electrical round aluminum wire GB/T3955-1983 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Round aluminium wire for electrical purposes
Round aluminium wire for electrical purposes The provisions of this standard are consistent with those of IEC111, 121, 207 and 209. Scope of application
This standard applies to the manufacture of aluminium wire for electric wires and cables and motors and electrical appliances. 2 Model
The models of round aluminium wire are shown in Table 1.
State code
The specifications of round aluminium wire are expressed by nominal true diameter, and its range shall comply with the provisions of Table 2. Table 2
4 Materials
UDC 621.315.53
GB 3955--83
Soft round aluminum wire
H4 state hard round staggered wire
HR state hard round aluminum wire
H& state hard round marked wire
H9 state hard reading aluminum wire
Diameter range m
0.30~10.00
0.30- 6.00
0.30~10.00
0.30~ 5.00
1.25～5.00
Round aluminum wire should be made of round lead rod that meets the requirements of GB3954-83 "Electrical Round Aluminum Rod". 5 Dimensional deviation
5.1 The deviation of the nominal diameter of round aluminum wire shall comply with the provisions of Table 3. 5.2 The difference (value) between the maximum and minimum diameters measured on the same cross section of the round aluminum wire perpendicular to the axis shall not exceed the absolute value of the nominal diameter deviation.
Promulgated by the National Bureau of Standards on November 26, 1983
Implemented on October 1, 1984
Mechanical properties
Nominal diameter d
0.300~0.900
0.910~2,490
2.50 and above
The mechanical properties of round aluminum wire shall comply with the provisions of Table 4. Model
0.30 ~1. 00
1.01 ~10.00
0.30~6.00
6.01~10.00
0.30~5.00
1.26 ~1.50
1.51-1.75
1.76-2.00
2.01 ~ 2.25
2. 26 ~ 2. 50
2.51 ~2.75
3.01~3.25
3.26~3.50
3.51~3.75
3.76~4.25
4.26~5.00
GB3955—83
Tensile strength
N/mm2**
±1%d*
Elongation at break
No small words
See Article 11
See Article 11
See Article 11
See Article 11
Retain two decimal places in the calculation and round off according to the provisions of Appendix C of GB1.1 "General Provisions for the Preparation of Standards in the Guidelines for Standardization Work". **1N/mm2=0.102kgf/mmzbZxz.net
Electrical properties
The electrical properties of round aluminum wire shall comply with the provisions of Table 5. Type
GB 8955-8
When calculating, the physical data at 20℃ shall take the following values: Density
Linear expansion coefficient
Resistance temperature coefficientLR type
Other types·
: Appearance
Resistivity
*-2.703kg/dm 3
--0.000 023 C-
0.00407℃-1
0.004 03 ℃ -
The surface of round aluminum wire shall be smooth and free from any defects inconsistent with good industrial products. 9 Delivery requirements
Round lead wires shall be delivered in coils or coils. Each coil or coil of round aluminum wire shall be a whole piece. Welding or twisting is not allowed. Except for welding of aluminum rods and finished wire molds during the manufacturing process.
9.2 The net weight of each coil or coil of round aluminum wire shall comply with the provisions of Table 6. According to the agreement between the two parties, any weight of round aluminum wire can be delivered. Table 6
Nominal diameter
0.30- 0.50
0.51 -1.00
1.01 ~2.00
2.01~4.00
4.01-6, 00
6.01 ~10.00
10 Acceptance rules
Weight of each wire
Not less than
Not less than 50% of the standard
weight of the reel
Delivery quantity
Not more than 15% of the total weight of the delivery
Products shall be inspected and qualified by the manufacturer before leaving the factory. Each batch of products shall be accompanied by the manufacturer's product quality inspection certificate. 10.2 Products shall be inspected in accordance with the provisions of Table 7. Serial number
Inspection item
Mechanical properties
Winding test
Resistivity
GBa955—83
Article number of this standard
Acceptance rules
Test method
JB1071—77
JB1071-77
JB 1071-77
Article 11 of this standard
GB 3048.2-83
10.3 Sample 1% of each batch, but not less than 3 reels (turns); when the batch is large, not more than 10 reels (turns). If the first test result is unqualified, double the number of samples should be taken for a second test on the unqualified items. If there are still unqualified results, they should be checked one by one. 11
Test method
Winding test (Article 6): The sample is tightly wound on a round rod equal to its own diameter for 8 turns. After unwinding 6 turns, it is tightly wound again. Under normal visual inspection, the aluminum wire should not be broken, but slight cracks on the surface of the aluminum wire are allowed. 12 Packaging and marking
Round aluminum wire is represented by model, diameter and number of this standard. For example: H4 state hard round aluminum wire with a nominal diameter of 2.00mm is represented as: LY4-2.00GB3955-8312.2 Round aluminum wire should be wound neatly and well packaged. When coiling, the outermost layer should keep a proper distance from the edge of the side plate of the wire coil. 12.8 Each coil or each circle of round aluminum wire should be attached with a label indicating: manufacturer name
model and specification
gross weight and net weight, kg
manufacturing date
standard number,
additional instructions:
GB3955—83
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. The person in charge of drafting this standard is Yuan Hesheng.
From the date of implementation of this standard, the original Ministry of Machinery Industry standard IB648—77 "Round Aluminum Wire" will be invalid.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.