GB/T 3953-1983 Electrical round copper wire

The provisions of this standard are consistent with those of the International Electrotechnical Commission (IEC) 28. This standard applies to the manufacture of round copper wires for wires and cables and motors and electrical appliances. GB/T 3953-1983 Electrical round copper wire GB/T3953-1983 Standard download decompression password: www.bzxz.net

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Electrical Round Copper Wire
Round copper wirefor electrical purposes The provisions of this standard are in accordance with the provisions of the International Electrotechnical Commission (IEC) 28. Scope of application
This standard applies to round copper wires used in the manufacture of wires and cables and motors and electrical appliances. 2 Model
The round copper wire models are shown in Table 1.
3 Specifications
The specifications of round copper wires are expressed in nominal diameters, and their specifications shall comply with the provisions of Table 2. Table 2
4 Materials
Soft round copper wire
Hard copper wire
Special color round steel wire
UDG: 621.315.31
GB 3953—83
Specification range nm
0.020~14.00
0.020~14.00
1.50~ 5.00
Round copper wire shall be made of hot-rolled black round copper rod in accordance with the provisions of GB3952-83 "Electrical round copper rod". 5 Dimensional deviation
The deviation of the nominal diameter of round copper wire shall comply with the provisions of Table 3. 5.1
5.2 The difference (value) between the maximum and minimum diameters measured on a section of the round copper 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
0.020~0.025
0.026-0.125
0.126 ~0.400
0.401 ~ 14.00
The mechanical properties of round copper wire shall comply with the provisions of Table 4. Electrical properties
The resistivity of round copper wire shall comply with the provisions of Table 5. TR type
Nominal diameter
GB3953—B3
Tensile strength
N·mm\
Not less than
t 0,002
±1%d*
Tensile weakness
TYT type
1.1—81 "Standardization
, when calculating the elasticity, the standard shift diameter is 0,4[-1,101m, and the one decimal place is retained, and the one greater than 11.000mm is retained. The provisions of the C section of the GH1 Guiding Principles are revised. Nominal vertical diameter
GB 3858--83
Continued Table 4
Tensile strength
, elongation
Tensile strength
The corresponding properties of the larger nominal diameter value are adopted. Note: When the nominal diameter value is between the two adjacent values ​​listed in Table 5, the physical parameters of copper wire at 20℃ should be taken as follows: density
linear expansion coefficient
temperature coefficient of resistance
8.89g/cm3
0.000 017 C -1
.·0.00383℃1
..-0.003 81 ℃--
TY, TYT type Nominal diameter 2.00mm and above......0.003 77 C1
Nominal diameter below 2.00mm
Appearance
Reading The surface of the copper wire should be smooth and clean, and there should be no defects that are not consistent with good products! 9 Delivery requirements
9.1 Round copper wires should be delivered in coils or coils. Each coil or coil of round copper wire should be a whole wire. No fraudulent welding or twisting is allowed, except for the welding of copper rods in the manufacturing process and before the finished product is molded.
.2 The net weight of each coil or coil of round copper wire with a nominal diameter of 6.00mm or below shall comply with the provisions of Table 6. For a nominal diameter of more than 6.00mm, the weight shall be agreed upon by both parties. According to the agreement between the two parties, round copper wires of any weight are allowed to be delivered. Table 6
Nominal diameter
0.020-0.025
0.030~0.040
0.050-0.060
0.070~0.100
0.110 ~ 0.150
0,160~0.250
0.260~0,400
0.410 -0.600
0.630 ~0.800
0.820~1.000
1.01 -2.00
2.01 4.00
10 Acceptance rules and test methods
The weight of each round copper wire
is not less than
not less than 150% of the standard
weight
the quantity of delivery
is not greater than 15% of the total weight of delivery
the products shall be shipped only after they have passed the inspection by the manufacturer. Each batch of products shipped shall be accompanied by the manufacturer's product quality inspection certificate. The products shall be inspected in accordance with the provisions of Table 7.
Inspection items
Mechanical properties
Resistivity
Article number of this standard
Acceptance rules
JB1071—77
JB1071-77
JB1071--77
GB 3048.2—83
GB3953-83
10.31% sampling for each batch, but not less than 3 plates (circles): when the batch is large, no more than 10 plates (circles). If the first test result is unqualified, double the number of samples should be taken for the second test of the unqualified items. If there are still unqualified results, each plate (circle) should be checked. 11 Packaging and marking
11.1 Round copper wires are indicated by model, diameter and this standard number. For example, the nominal diameter of hard round copper wire is 2.00mm, which is indicated as: TY-2.00GB3953-8311.2 Round copper wires should be neatly wound and properly packaged. When coiled, the last layer should keep a proper distance from the edge of the coil side plate. 11.3 Each coil or coil of round copper wire should be attached with a label indicating: Manufacturer name
Model and specification
Gross weight and net weight kg
Date of manufacture year and month
This standard number GB3953-83
Additional instructions:
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, and was drafted by the Shanghai Cable Research Institute of the Ministry of Machinery Industry and others. Deng Benxiang is the person in charge of drafting this standard.
From the date of implementation of this standard, the former Ministry of Machinery Industry Standard JB647--77 "Round Copper Wire" will be invalid.
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