This standard specifies the type and size, technical requirements, test methods, inspection rules, packaging and marking of rod-shaped support porcelain insulators for electrostatic precipitators (hereinafter referred to as rod-shaped support porcelain insulators). This standard is applicable to rod-shaped support porcelain insulators for electrostatic precipitators with rated DC voltage of 60, 72, 80, 100KV and working temperature not higher than 200℃, and the installation site altitude does not exceed 1000m. JB/T 5909.3-1991 Porcelain insulator rod-shaped support for electrostatic precipitators JB/T5909.3-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
Porcelain Insulators for Electrostatic Precipitators
Rod-Shaped Pillars
1 Subject Content and Scope of Application
JB/T5909.3-91
This standard specifies the types and dimensions, technical requirements, test methods, inspection rules, packaging and marking of rod-shaped pillar porcelain insulators for electrostatic precipitators (hereinafter referred to as rod-shaped pillars). This standard applies to rod-shaped pillar porcelain insulators for electrostatic precipitators with rated DC voltages of 60, 72, 80, and 100 kV and operating temperatures not exceeding 200°C, and the installation site is not more than 1000 m above sea level. 2 Reference standards
GB775.1~775.3
JB/Z94
JB/Z262
JB3384
JB4307
3 Types and dimensions
Technical conditions for high-voltage insulator porcelain
Test methods for insulators
Packaging of insulator products
Ultrasonic detection of internal defects in porcelain
Sampling methods for high-voltage insulators
Technical conditions for cement adhesives for insulator glueing Electrical terminology Insulators
3.1 Rod-shaped pillars shall be manufactured according to the drawings approved by the prescribed procedures. Their types and main dimensions shall comply with the provisions of Figure 1, Figure 2 and Table 1 respectively.
JZ-06001B
JZ-07201B
JZ-08001B
JZ-10001B
Approved by the Ministry of Machinery and Electronics Industry on December 25, 1991 10
Main dimensions of insulators
4—416
Implemented on October 1, 1992
Inspection item number
6.4.3 Type test
Inspection item name
Temperature cycle test
Torsion failure load test
Porosity test
JB/T5909.2—91
Contents of sampling inspection of porcelain shaft|| tt||Inspection requirements
Article 4.8 of this standard
Article 4.7 of this standard
Article 4.2 of this standard
Number of test specimens
All test specimens after the first test
Porcelain after the second test
Take one piece for each test specimen
Inspection methods
Article 5.2 of this standard
Article 5.1 of this standard
Article 5.3 of this standard
When new products are trial-formed or the structure of normal products is modified, the raw material formula and process methods are changed, type testing must be carried out. The number of test specimens shall not be less than 4, and shall be carried out according to Table 5 after each test is passed. Table 5 Contents of type test for porcelain shaft
Test item serial number
Test item name
Temperature cycle testWww.bzxZ.net
1h high temperature electromechanical load test
Porosity test
Test requirements
Article 4.8 of this standard
Article 4.9 of this standard
Article 4.2 of this standard
Number of specimens
Ceramic after the second test
One piece for each specimen
Test method
Article 5.2 of this standard
Article 5.4 of this standard
Article 5.3 of this standard
During the type test, if one specimen does not meet any of the requirements specified in Table 5, the type test shall fail. 7 Packaging and marking
7.1 The porcelain shafts shall be packed in wooden boxes and ensure that they will not be damaged during transportation due to poor packaging. The packaging shall comply with the provisions of JB/Z94, and the packaging boxes shall be marked with:
Manufacturer name;
Porcelain shaft model;
Total weight of the packaging box;
"Handle with care", "Porcelain parts" and other words or other marks. 7.2 The porcelain shaft parts shall have clear and firm manufacturer's trademark and manufacturing year. 7.3 Each batch of porcelain shafts delivered shall be accompanied by a product certificate, which shall have the seal of the manufacturer's quality inspection department. Additional remarks:
This standard was proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by Tongchuan Electric Porcelain Factory, Shaanxi Province. The main drafters of this standard are Li Musen and Zhao Jincai. 9
3.2 The rod-shaped pillar model is indicated as follows: JZ
4 Technical requirements
JB/T5909.391
Code indicating a working temperature of 200°C
Product design serial number: Two-digit Arabic numerals indicate the rated DC voltage, kV
Rod-shaped pillars for electrostatic precipitators
4.1 The appearance quality of the rod-shaped pillar porcelain parts shall comply with the corresponding provisions of GB.772. 4.2 The cross-section of the rod-shaped pillar porcelain parts shall be homogeneous and dense, and there shall be no penetration after the porosity test. During the porosity test, the pressure shall not be less than 20MPa, and the product of pressure and time shall not be less than 180MPa·h. 4.3 The rod-shaped pillar shall be glued with No. 425 cement adhesive according to JB4307, and a high-temperature resistant buffer layer shall be applied to the surface where the metal accessories touch the adhesive.
4.4 The exposed surface of metal accessories should be treated with anti-rust treatment, and the screw holes should be coated with anti-rust oil to prevent rust. 4.5 The parallelism of the two end surfaces of metal accessories and the coaxiality of the central axis of the mounting hole should not exceed 2mm. 11
JB/T 5909.391
4.6 The rod-shaped pillar porcelain parts should be subjected to ultrasonic flaw detection before glue assembly, and there should be no defects (such as cracks, pores and interlayers) that can be found by ultrasound inside the porcelain parts.
4.7 The compression failure load of the rod-shaped pillar should not be less than 300kN. 4.8 The rod-shaped pillar should be able to withstand three temperature cycle tests with a temperature difference of 60K without damage. 4.9 The rod-shaped pillar should be able to withstand a 1min temperature voltage test without flashover or abnormal heating. The test temperature and test voltage should comply with the provisions of Table 2. When the power frequency AC voltage is used instead of the DC voltage for testing, the voltage value is equivalent. Table 21min Temperature voltage test value
Rated DC voltage
DC test voltage at room temperature
DC test voltage at 200℃
5 Test method
5.1 Temperature cycle test
The temperature cycle test of the cassia pillar shall be carried out in accordance with the provisions of GB775.15.2 Compression failure load test
The sample shall be installed on the test machine and the sample shall be in a vertical state. During the test, the load shall be increased evenly and without impact until the sample is destroyed. The load value at this time is the compression failure load value. 5.3 Porosity test
The porosity test of the rod pillar shall be carried out in accordance with the provisions of GB775.1. 5.4 Temperature voltage test
The clean and dry sample shall be installed on the test machine and the sample shall be in a vertical state. The voltage shall be applied between the two electrodes of the test piece. The distance between the sample and the high-voltage electrode and the inner wall of the test machine shall not be less than one time of the dry flashover distance of the sample. During the test, the test temperature should reach the temperature value specified in this standard (the sample must be placed at this temperature for more than 40 minutes), and then apply a DC (or AC) voltage to the standard value, and keep it for 1 minute without flashover. 6 Inspection rules
6.1 The rod-shaped support should be inspected and accepted by the quality inspection department of the manufacturer. The manufacturer should ensure that all delivered rod-shaped supports meet the requirements of this standard. 6.2. According to the inspection rules specified in this standard, the user has the right to inspect whether the technical indicators of the rod-shaped support meet the requirements of this standard. 6.3 The rod-shaped support should be inspected and accepted in batches. The rod-shaped support of the same model made by the same process method is a batch, and the number of each batch should not exceed 300.
6.4 The inspection of the rod-shaped support is divided into one-by-one inspection, sampling inspection and type test. 6.4.1 One-by-one inspection
One-by-one inspection should be carried out in the order specified in Table 3. If any of the requirements specified in Table 3 are not met, the rod-shaped support is unqualified.
Table 3 Inspection contents of rod-shaped pillars one by one
Inspection item number
Inspection item name
Appearance inspection
Dimension inspection
Ultrasonic flaw detection inspection
Inspection requirements
Article 4.1 of this standard
Article 3.1 of this standard
Article 4.6 of this standard
Inspection method
JB/Z262
6.4.2 Sampling inspection
JB/T5909.3—91
Sampling inspection shall be carried out by randomly selecting 4 samples after each sample has passed the inspection according to the provisions of Table 4, using a piece-rate secondary sampling plan, and its sampling rules and judgment procedures shall comply with the provisions of JB3384. Table 4
Contents of sampling inspection for rod-shaped pillars
Inspection item serial number
Inspection item name
Temperature cycling test
Compression failure load test
Porosity test
Inspection requirements
Article 4.8 of this standard
Article 4.7 of this standard
Article 4.2 of this standard
Number of specimens
All specimens after the first inspection
Porcelain after the second inspection, one piece for each specimen
Inspection method
Article 5.1 of this standard
Article 5.2 of this standard
Article 5.3 of this standard
If one specimen does not meet any of the requirements specified in Table 4 during inspection, twice the number of specimens should be taken from the same batch of products for re-inspection. If there is still one sample that does not meet any of the requirements in Table 4, the batch of rod-shaped pillars is unqualified. 6.4.3 Type test
When a new product is trial-formed or the structure of a normal product is modified, the raw material formula and process method are changed, a type test must be carried out. The number of samples for the type test shall not be less than 4, and after each test is qualified, it shall be carried out according to Table 5. During the type test, if one sample does not meet any of the requirements specified in Table 5, the type test is unqualified. Table 5
Contents of rod-type pillar type test
Test item serial number
Packaging and marking
Test item name
Temperature cycle test
Temperature voltage test
Porosity test
Test requirements
Article 4.8 of this standard
Article 4.9 of this standard
Article 4.2 of this standard
Number of specimens
Porcelain after the second test
One piece for each specimen||t t||Test method
Article 5.1 of this standard
Article 5.4 of this standard
Article 5.3 of this standard
Rod-shaped pillars should be packed in wooden boxes and ensure that they will not be damaged due to poor packaging during transportation. The packaging should comply with the provisions of 7.1
of JB/Z94. The packaging box should indicate:
Manufacturer name,
Rod-shaped pillar model;
Total weight of the packaging box;
"Handle with care", "Porcelain" and other words or other signs. 7.2 The porcelain parts of rod-shaped pillars should have clear and firm manufacturer's trademarks and manufacturing years. 7.3
Each batch of rod-shaped pillars delivered should be accompanied by a product certificate, which should have the seal of the manufacturer's quality inspection department. Additional notes:
This standard is proposed and managed by Zhuji Electrostatic Precipitator Research Institute. This standard was drafted by the Tongchuan Electric Porcelain Factory of Shaanxi Province. The drafters of this standard are Li Musen and Zhao Jincai.
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