GB/T 4056-1994 Connection structure and dimensions of suspension insulators for high voltage lines

This standard specifies the connection structure and dimensions of high-voltage line suspension insulators, the dimensions of the ball-and-socket connection gauge and its connection characteristics, and recommends the ball-and-socket gauge materials and manufacturing requirements. This standard applies to disc-shaped and rod-shaped suspension insulators and the hardware connected to them. GB/T 4056-1994 Connection structure and dimensions of high-voltage line suspension insulators GB/T4056-1994 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Coupling dimensions of suspension insulators for high voltage lines This standard adopts the following standards of the International Electrotechnical Commission (IEC) equivalently: IEC Publication 120 (1984) "Ball and socket connection dimensions of insulator string elements" (third edition); IEC Publication 471 (1977) "Slot connection dimensions of insulator string elements" (second edition). 1 Subject content and scope of application
GB/T 4056—94
Replaces GB4056-83
This standard specifies the connection structure and dimensions of suspension insulators for high voltage lines, the dimensions of ball and socket connection gauges and their connection characteristics, and recommends ball and socket gauge materials and manufacturing requirements.
This standard is applicable to disc-shaped and rod-shaped suspension insulators and the hardware connected to them. 2 Reference standards
GB 2900. 8---83
3 Electrical terminology insulator
JB/T5896-911
Common insulator terms
3 Terms
The terms used in this standard shall comply with the provisions of GB2900.8 and JB/T5896. 4 Types and dimensions
4.1 The connection structure types in this standard are divided into ball-and-socket connection and slot-and-socket connection. The ball-and-socket connection uses the nominal foot rod diameter d1 as the connection mark, and there are five types: 1620, 24, 28 and 32. The slot-and-socket connection uses the diameter d of the cylindrical pin it connects as the connection mark, and there are 16C. 4.2 The dimensions listed in this standard are all dimensions after surface treatment, and the measurement unit is expressed in millimeters. Approved by the State Bureau of Technical Supervision on April 12, 1994 74
Implementation on December 1, 1994
4.3 Ball and socket connection
GB/T4056
4.3.1 The structure and dimensions of the ball are specified in Figure 1 and Table 1 Foot bar
Table 1 Ball dimensions
Connection mark
Note: (①rs dimension is for reference only;
② Within the height range, the dimension of d should not exceed the specified value. r
3.5±1. 0
GB/T 4056--94
2 The structure and size of the cap socket are specified in Figure 2 and Table 2. 4.3.2
Connection mark
42.5+042.580
Note: () When selecting 16A or 16B, 16B is recommended. Cap socket size
When using R-type pin When using W-type pin
36.5*#: 5
When selecting the locking pin structure, when the connection mark is 20 or less, it is recommended to use the W-type pin structure first; when the connection mark is 24 or more, it is recommended to use the R-type structure first.
③ When keeping the foot When the gap between the ball and the locking pin remains unchanged, the bottom plane of the socket can be made into an arc bottom surface, but its radius of curvature should not be less than the size of the foot ball r. In this case, R. should also be reduced accordingly. 76
GB/T4056--94
4.3.3 The locking pin mouth structure stipulates that there are two types of circular holes and rectangular holes. 4.3.3.1 The pin mouth structure and dimensions of the open camelback pin (hereinafter referred to as R-type locking pin) are stipulated in Figure 3 and Table 3. Xx
Figure 3 R-type locking pin mouth
Table 3 R-type locking pin mouth dimensions
Connection mark
9. 5 ±0. 5
GB/T4056-94
4.3.3.2 The structure and dimensions of the W-type locking pin are specified in Figure 4 and Table 4. H
W-type locking pin
W-type locking pin dimensions
Connection mark
Note: Within the length B2 dimension, the height H of the groove should remain unchanged. 4.4 Groove connection
4.4, 1U-type groove structure and dimensions are specified in Figure 5. 18 .51
Figure 5 U-shaped groove
10.5±0.8
11.5±0.8
13.0±0.8
4.4.2 The structure and dimensions of the flat foot are specified in Figure 6. 4.4.3 The structure and dimensions of the humpback pin are specified in Figure 7. R2.8
4.4.4 The structure and dimensions of the cylindrical pin are specified in Figure 8. 45 ± 1
CB/T 4056—94
Hunchback pin
Figure 8 Cylindrical pin
5 Criteria for checking the dimensions of the ball and socket gauge 5.1 Structure and dimensions of the ball and socket gauge
The structure and dimensions of the ball and socket gauge shall comply with the requirements of Figures 9 to 18 and Tables 5 to 14 respectively. 5.1.1 The “general” standard structure and dimensions of the ball height z1, the shaft diameter d and the length are specified in Figure 9 and Table 5. 79
Connection mark
Minimum contour
Nominal contour
Maximum contour
Minimum contour
Nominal contour
Maximum contour
Minimum contour
Nominal contour line
Maximum contour line
Minimum contour line
Nominal contour line
Maximum contour line
Minimum contour line
Nominal contour line
Maximum contour line
CB/T405694
Note: The new gauge contour line must be between the minimum and maximum contour lines. 80
13:304
GB/T4056--94
5.1.2 The structure and size of the "through" gauge for the sphere diameter d2 are specified in Figure 10 and Table 6 Figure 10
Connection mark
33.223±0.012
40.920±0.013
48.913±0.014
56.908±0.015
64.903±0.016
GB/T4056—94|| tt||5.1.3 The height of the sphere h, the "stop" gauge structure and dimensions are specified in Figure 11 and Table 7 Figure 11
Connection mark
Minimum contour line
Nominal contour linewww.bzxz.net
Maximum contour line
Minimum contour line
Nominal contour line
Maximum contour line
Minimum contour line
Nominal contour line
Maximum contour line
Minimum contour line
Nominal contour line
Maximum contour line
Note: The contour line of the gauge must be between the maximum and minimum contour lines. 82
GB/T4056-94
5.1.4 The structure and size of the "stop" gauge for the sphere diameter d2 are specified in Figure 12 and Table 8. 45+5
Connection mark
31.800±0.012
39.400±0.013
47.200±0. 014
55.100±0,015
62.900±0.016
12.0±0.5
18. 0-0. 5
20.0±0.5
22.0±0.5
25.0±0.5
5.1.5 The “stop” gauge structure and dimensions of the foot rod diameter d are specified in Figure 13 and Table 9. Figure 13
Connection mark
15.800±0.010
19. 700±0. 012
23.600±0.012
27.500±0.013
31.400±0.014
GB/T4056
20.0±0.5
25.0±0.5
30.0±0.5
35. 0±0.5
40.0±0.5
15.0±0.5
18.0±0.5
23.0±0.5
31.0±0.5
5.1.6 The structure and dimensions of the cap socket entrance height H1, entrance width D, and neck width D. are specified in Figure 14 and Table 10. a. Applicable to connection mark 16A.24
b. Applicable to connection marks 16B, 20, 28, 32 connection marks
Maximum contour
Nominal contour
Minimum contour
Maximum contour
Nominal contour
Minimum contour
Maximum contour
Nominal contour
Minimum contour||t t||Worn
Maximum contour
Nominal contour
Minimum contour
Maximum contour
Nominal contour
Minimum contour
Maximum contour
Nominal contour
Minimum contour
GB/T 4056-94
27.63051.150
27.61051.126
27.59051.102
31.11067.620
Note: The contour of the gauge must be between the minimum and maximum contours. Is
23, 054
40. 00070, 000
55.08580.085
70.05590.05510.060
90.00010.000
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.