This standard applies to the porcelain sleeves for arc extinguishing chambers and support porcelain sleeves (hereinafter referred to as porcelain sleeves) for outdoor oil-free circuit breakers with rated voltage of 110KV and 220KV AC. This standard does not apply to porcelain sleeves used in severely polluted areas. JB/T 1542-1999 Porcelain sleeves for 110 and 200 kV outdoor oil-free circuit breakers JB/T1542-1999 Standard download decompression password: www.bzxz.net

The standard of the People's Republic of China for high voltage mechanical industry JB/T15421999
110%200
1999-08-064
2000-01-01
JB/T1542±1999
This standard is based on GB/T1.1-1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presenting Standards Part 1: Basic Regulations for Standard Writing" and GB/T1.22-1993 "Guidelines for Standardization Work Unit 2: Methods for Determining Standard Contents Part 22 Regulations for Reference Standards", and is a revision of JB1542-75 "Porcelain Bushings for 110 and 220 kV Outdoor Less Oil Circuit Breakers". It is consistent with GB/T1.1-1993 in terms of technical content, writing format and rules. This standard replaces JB1542-75 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Insulators. This standard is drafted by Xi'an Electric Ceramics Research Institute. The main drafters of this standard are Liu Shuheng, Xu Libao and Xiao Li. This standard was first issued in 1975 and revised for the first time in 1999. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 1
110%200
JB/T15421999
JB1542E75
This standard applies to the arc chamber porcelain sleeves and support porcelain sleeves (referred to as porcelain sleeves) for outdoor oil-free circuit breakers with rated voltage of 110kV and 220kV AC at power frequency.
This standard does not apply to porcelain sleeves used in severely polluted areas. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard by 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. GB772—1987
Technical conditions for high-voltage insulator porcelain parts
GB/T775—1987 Test methods for insulators
3 Types and dimensions
The main dimensions, types and dimensional tolerances of porcelain sleeves shall conform to the requirements of Table 1 and Figures 1 to 3. Table 1 Main dimensions of porcelain sleeves
DWS-11010
DWS-11008
DWS-11011
DWS--11012
Pillar porcelain sleeve
Extermination chamber porcelain sleeve
Arc extinguishing chamber porcelain sleeve
Arc extinguishing chamber porcelain sleeve
1200±15
670±5
700±5
1100±10
185±5
185±5
220±6
240±7
270±5
320±10
263±2
235±。
Porcelain bushing model description: DWS--Porcelain bushing for outdoor oil-free circuit breaker. The first three digits after it are the rated voltage kV, and the last two digits are the sequence number. The dimensions at * are allowed not to be made into bosses according to the production process requirements, or the boss height is controlled below 60mm. 2
1999-08-06鼠
2000-01-01
3.2 Tolerance of porcelain sleeve and surface shape and position:
a) The parallelism of the two end faces of the porcelain sleeve after grinding JB/T15421999
The height of 670mm and 700mm should not be greater than 1mm, and the height of 1100mm and 1200mm should not be greater than 2mm; b) The flatness of the two end faces of the porcelain sleeve after grinding should not be greater than 0.5mmc) The radial direction of the support porcelain sleeve clamping surface is allowed to be ground into the main body 23mm in one direction; Figure 3
d) After the arc extinguishing chamber porcelain sleeve is ground, the verticality of the central axis of the inner hole to the bottom end face is 4.5×10-×H (H is the porcelain sleeve height, in mm)
e) The creepage distance of the porcelain sleeve is allowed to have a negative tolerance of 5% (positive tolerance is not specified). 4 Technical requirements
The mechanical strength of the porcelain bushing shall comply with the provisions of Table 2.
Table 2 Mechanical strength of porcelain bushing
DWS—11010
DWS-11008
DWS-11011
DWS-11012
Hydraulic test
Minute tolerance value
1 The bending failure value of the porcelain bushing shall be agreed upon by the supplier and the buyer before the provisions of this standard are made. 2 If the manufacturer supplies unground porcelain bushings, the dimensional deviation shall be agreed upon by the supplier and the buyer. 4.2 Except for the provisions of this standard, the rest shall comply with the relevant provisions of GB772. 5 Acceptance rules and test methods
Destruction value (not less than)
5.1 The tests of porcelain bushings are divided into individual tests, spot checks and type tests. The test method shall be in accordance with the provisions of GB/T775, 2
JB/T15421999
5.2 Porcelain bushings shall be subject to random inspection tests in batches. Porcelain bushings of the same type made by the same process shall be counted as one batch, and the quantity in each batch shall not exceed 100.
All porcelain bushings shall be subjected to the tests and inspections in Table 3 one by one. If any of the requirements specified in the table are found not to be met, the porcelain bushing does not meet the requirements. 5.3
3 Porcelain bushing test items one by one
Test name
Dimension inspection
Appearance inspection
Hydraulic pressure resistance test
Test basis
3.1 and 3.2 of this standard
4.2 of this standard
4.1 of this standard
Test method
GB/T775.1
GB/T775.3
Note: For wet-formed porcelain bushings, when the manufacturer can ensure that the hydraulic pressure resistance requirements are met, sampling is allowed to be spot-checked according to 5.4 of this standard after the hydraulic pressure resistance test.
The spot-check test shall be carried out according to Table 4 or Table 5 after each test, and the number of tests shall not be less than 2. 5.4
During the test, even if one does not meet any of the requirements in Table 4 or Table 5, double the number of porcelain bushings should be sampled from the same batch for repeated testing. If one still does not meet any of the requirements in Table 4 or Table 5 during the repeated test, the batch of porcelain bushings is unqualified. Table 4 Random inspection test items for pillar porcelain bushings
5.5 Type test
Test name
Hot and cold test
Bending failure test
Porosity test
Test name
Heat test
Hydraulic failure test
Porosity test
Test basis
According to the provisions of GB772
This standard 4.2
According to the provisions of GB772||t t||Table 5 Random inspection test items for arc extinguishing chamber porcelain sleeves
Test basis
According to GB772
This standard 4.1
According to GB772
Number of test pieces
4 porcelain blocks after 2 tests
Number of test pieces
4 porcelain blocks after 2 tests
When new products are trial-formed or when normal products are modified in structure, raw material formula and process methods, type tests must be carried out. The number of test pieces is 2. After passing the routine test, the test is carried out in the order shown in Table 6 (items 1, 2, 4, and 5 for arc extinguishing chamber porcelain sleeves and items 1, 2, 3, and 5 for pillar porcelain sleeves).
Table 6 Type test items for porcelain bushings
Test name
Leakage distance inspection
Hot and cold test
Bending failure test
Hydraulic failure test
Hole tightness test
Test basis
Article 3.1 of this standard
According to the provisions of GB772
4.2 of this standard
4.1 of this standard
According to the provisions of GB772
Number of test pieces
4 porcelain blocks after 2 or 3 tests
During the type test, if even one porcelain piece does not meet any of the requirements specified in Table 6, the type test is unqualified. Packaging and marking
The porcelain bushing should be packed in a box. The porcelain bushing must be packed well and padded tightly. The box must be firm to ensure that it will not be damaged during transportation (if the user agrees in 6.1
, it is allowed to deliver without packaging). The following should be marked on the packaging box:
a) Manufacturer's name;
b) Porcelain bushing model (or code)
c) Porcelain bushing quantity;
JB/T15421999
d) "Handle with care", "Porcelain parts" and other words or indication marks. The porcelain bushing should be clearly and firmly marked with the manufacturer's trademark and the year and month of manufacture according to the specified position of the drawing. 6.3
Each porcelain bushing delivered should have the qualified seal of the Technical Inspection Department. 6.4
110%200 bottles
JB/T15421999wwW.bzxz.Net
deg
880A1230
19XXA XX
100044
XXX,XXX
19XXA1
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.