Some standard content:
Machinery Industry Standard of the People's Republic of China
JB/T2440
1991-10-24
1992-10-01
JB/T24401991
JB2440
This standard specifies the scope of application, technical requirements, test methods, inspection rules, etc. of electrical equipment used in series with insulators.
This standard applies to the discharge counters for arresters (hereinafter referred to as counters) used in series with silicon carbide arresters or metal oxide arresters in AC power systems. The counters display the number of arrester actions. 2 Reference standards
GB 191
GB 311. 2
GB 311. 3
GB 311. 4
GB 2900. 12
GB 2900, 19
GB7327
GB11032
3 Terminology
Packaging, storage and transportation pictorial signs
High voltage test technology Part 1 General test conditions and requirements High voltage test technology Part 2 Test procedures High voltage test technology Part 3 Measuring devices Electrical terminology Arrester
Electrical terminology High voltage test technology and insulation coordination Silicon carbide valve type lightning arrester for AC system
Safety-current metal oxide lightning arrester
The terms used in this standard, except as specified in this standard, shall comply with the provisions of GB 2900.12 and GB 2900.19. 3.1 Action current of counter
The current that the counter can accurately take action and make an indication under the impact of a given waveform. The action current of the counter has two values, the upper limit current value and the lower limit current value. The upper limit current value is the nominal discharge current of the counter, and the lower limit current value is the action degree that the specified counter must have. 3.2 Residual voltage of the counter
The maximum voltage value between the terminals when the nominal discharge current passes through the counter, which is an additional voltage on the residual voltage of the arrester. 4 Conditions for use of the counter
The conditions for use of the counter are the same as the normal conditions for use specified in GB 11032 and GB 7327. 3 Technical requirements
5.1 The counter shall comply with the requirements of this standard and shall be manufactured in accordance with the drawings and process documents approved by the prescribed procedures. 5.2 The indication of the counter shall be clear and easy to observe. 5.3 When the nominal discharge current passes through the counter, the residual voltage at both ends of the counter shall not be greater than 3kV (peak value). Note: If the user has a lower pressure requirement, it can be determined through negotiation with the manufacturer. 5.4 The counter should be able to operate reliably under the impact of a shock wave with a wave head of not less than 8us and a wavelength of not less than 20μs within the upper and lower limit current amplitude range specified in Table 1, and when the interval between two consecutive shocks is 1. Table 1 Counter characteristic parameters Grade Counter category For use with silicon carbide valve type surge arrester For use with metal oxide surge arrester Upper limit action current (peak value) Lower limit action current (peak value) 20-0us Liquid current (peak value) A Shock current (peak value) 5. 5 The ability of the counter's nonlinear resistor to withstand the current amplitude of square current, impact current and large impact current shall comply with the provisions of Table 1. 5.6 The dry and wet industrial withstand voltage of the counter shall not be less than 4kV (effective value). 5.7 The counter shall have a reliable sealing performance. 5.8 The exposed metal parts and internal metal parts of the counter shall have anti-corrosion measures. 6 Test method
Unless otherwise specified, the test shall be carried out on the counter, and the test sample shall be new, clean, dry and fully assembled. And install it as much as possible according to the actual operating conditions.
Except as specified in this standard, the measuring device and its accuracy shall comply with the requirements of GB311.4. 6.1 Provisions on current waveform
The error between the 4/10, 8/20, 18/40 impact current and the 2000us square wave current waveform and amplitude used in the test shall comply with GB7327 or GB 11032 regulations,
see.2 Nominal discharge current under-voltage test
During the type test, it is carried out on the complete counter, and the factory test is allowed only for the non-linear resistor, and its current amplitude is the nominal discharge current of the counter, residual voltage test method.
For silicon carbide non-linear resistors, it should comply with the provisions of B7327, and for gold oxide non-linear resistors, it should comply with the provisions of GB11032. 6.3 Counter action performance test
The test adopts an impulse current with waveform 8/20, and the current phase value specified in Table 1 passes through the counter. (.3.I "Operation performance test under lower limit action current" During the factory test, the counter should pass the action current lower limit value positive and negative polarity 5 times each, type During the type test, the counter shall pass the lower limit of the action current for 10 times in both positive and negative polarities; the time interval between each adjacent test of the same polarity is 15, and the counter shall be able to accurately indicate each time.
6.3.2 Action performance test under upper limit action current During the sampling test, the number of test pieces shall be sampled at 3% of each batch of products, but the minimum shall not be less than 3 pieces. Each product shall pass the upper limit of the action current for 1 time in both positive and negative polarities. During the type test, the counter shall pass the upper limit of the action current for 10 times in both positive and negative polarities; the time interval between each adjacent test of the same polarity is 50~605, and the counter shall be able to accurately indicate each time after cooling to room temperature after every 3 tests. In the sampling test, if one of the samples is unqualified, the batch of products will be transferred to the individual test. If one product is still found to be unqualified in the individual test, the time for this product to be transferred to the individual test will last for 1 month. During this period, if no unqualified products appear, it can be transferred to the sampling test, otherwise it should be extended for another month. The rest is analogous. 6.4 Current impulse withstand test of non-linear resistors The ambient temperature during the test is 25 ± 10℃. Non-linear resistors that have undergone the withstand tests of the impulse current, square wave current and large impulse current are not allowed to be installed in products for use. 6.4.1 Square wave and impulse current withstand test
6.4.1.1 Type test
During the test, 10 pieces with the highest residual voltage or DC reference voltage should be extracted from the non-linear resistors of the tested product and divided into 2 groups, 5 pieces in each group: square wave and impulse current withstand tests should be carried out according to the requirements of Article 5.5 of this standard. During the impulse current withstand test, each nonlinear resistor should withstand 20 times, and there should be no breakdown, flashover and other damage. The test is divided into 4 rounds, each round is carried out 5 times, the time interval between each adjacent test is 50~60s, and the time interval between each adjacent rounds should be sufficient for the nonlinear resistor to cool to the ambient temperature.
During the liquid current withstand test, each silicon nonlinear resistor should withstand 20 times and there should be no breakdown, flashover and other damage. The test is divided into 1 round, each round is carried out 5 times. Each gold oxide nonlinear resistor should withstand 18 times: there should be no breakdown, flashover and other damage. The test is divided into 6 rounds, each round is carried out 3 times. The time interval between the two tests of each phase needs to be 50~60%, and the time interval between each adjacent rounds should be sufficient for the nonlinear resistor to cool to the ambient temperature test. During the impulse current withstand test, only If one nonlinear resistor has less than 20 withstand times: When the standard withstand test is conducted, if only one semi-linear resistor has less than 20 withstand times (silicon carbide or 18-inch gold oxide), then the nonlinear resistor with the highest residual voltage or DC reference voltage shall be tested again. If all the doubled tests are qualified, the test product is considered qualified. If there are still some that have less than 20 withstand times in the impulse current withstand test or less than 20 times (silicon carbide) or 18 times (gold oxide) square wave current withstand test, the test intensity is considered unsuitable.
6.4.1.2 Sampling test
The test method is the same as the type test. The test product is selected from the same batch of nonlinear resistors. However, if the test fails, the residual voltage or DC reference voltage may be reduced and the test may be repeated (the reduction value is determined by the manufacturer). After the test is qualified, nonlinear resistors with a voltage higher than the residual voltage or DC reference voltage shall be considered unqualified.
6, 4. 2 Impact high current withstand test
During the test, 5 pieces with the highest residual voltage or DC reference voltage should be randomly selected from the non-linear resistors of the tested product. The test should be carried out in accordance with the requirements of Article 5.5 of this standard. The tested product should be able to withstand 2 times of current impact without any damage such as shock, internal network, etc. The time between the two times should be sufficient for the tested product to cool to the ambient temperature.
6.5 External insulation power frequency withstand voltage test of counter This test should be carried out in dry and wet state. During the test, the internal parts of the counter should be removed and the positive voltage amplitude specified in Article 5.6 of this standard should be applied. The test method should comply with the provisions of GB311.2~311.4. b.6 Sealing test of counter
Immerse the counter in hot water 30~40 degrees higher than the ambient humidity for 5 minutes for factory test and 10 minutes for type test: If there is no continuous new bubble escaping from the inside or no obvious degassing phenomenon, the sealing is considered qualified. Other effective methods can also be used to carry out this test. Inspection rules
7.1 General
The counter shall be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the requirements of this standard. The user shall inspect the counter in accordance with the provisions of this standard. The inspection of the counter is divided into four types: factory test, sampling test, type test and acceptance test. The test methods shall comply with the provisions of this standard. 3
Factory test
JB/T2440
The counter and its non-linear resistor leaving the factory shall be inspected in accordance with the provisions of Article 2. If the counter or its non-linear resistor does not meet any of the requirements specified in the table, the counter or non-linear resistor is considered unqualified. Table 2 Factory test items for counters
Test name
Appearance inspection
Residual voltage test at nominal discharge current
Operation performance test at lower limit operation current Close test of counters
Test basis
Article 5.1
Article 5.2
Article 5.8
Article 5.3 Plan
Article 5.4 Policy
Article 5.5
Test method
Article 6.2
Article 6.3.1
Article 5.6 Article
Test name
Counter
Non-electric patch
Counter
Counter
Sampling test
In order to control product quality, the inspection department of the manufacturer must conduct sampling tests regularly or by batch. The items and methods are specified in Table 3. Table 3 Counter sampling test items
Test name
Action performance test under upper limit action current Square and impulse current withstand test of non-linear resistor, Test basis
1 Article 5.4
Article R.5
Test method
Article 6.3.2
Article B.4.1
Test product name
Non-linear resistor
Test product quantity
3% (not less than 3 pieces)
10 pieces (5 pieces each)
Type test
Before new products are put into production, all items of type test must be carried out. After passing the type test, there is no need to repeat it. However, when the entire series of products is discontinued for more than one year or when the changes in the product structure, material, and manufacturing process affect the product performance, the relevant part or all type test items must be tested. The type test items and methods of
counters are specified in Table 4. Table 4 Type test items for counters
Test name
Appearance and dimension inspection
Residual voltage test at nominal discharge current
Operation performance test for counters
Current impulse withstand test for nonlinear resistors
External insulation withstand voltage test for counters
Test basis
Article 5.1
Article 5.2
Article 5.8
Article 5.3
Article 5.4
Article 5.5
Article 5.6
Article 5.7
Test method
Vernier caliper
Article 6.2
Article 6.3
Article 6.5 Article
Article 6.6
Test name
Counter
Non-linear resistor
Actuator (excluding
Internal parts
Counter quantity
Number of test pieces
15 pieces (5 pieces each
7.5 Acceptance test
When acceptance test is required, the following test shall be performed by extracting the smallest integer greater than the cube root according to the number of counters supplied. 1.5.1 Appearance and shape inspection
Inspect the appearance, shape, brand and accessories for any missing or damaged. 7.5.2 Counter action performance test The action performance test of the upper and lower limits of the action current shall be carried out in accordance with the factory test requirements specified in Articles 6.3.1 and 6.3.2 of this standard. 8 Marking, packaging, transportation, storage and warranty period 8.1 Marking
JB/T2440
Each meter should have an obvious fixed label, and the label should be clearly marked as follows: 1. Name and trademark of the meter,
Name and model of the meter:
Date and number of manufacture;
Nominal current and square wave current value (if the model cannot reflect it, indicate it), 8. 2 Packaging
Counting packaging must ensure that it will not be damaged during transportation due to poor packaging. The packaging should indicate the product name, model and manufacturer name:
Shipping unit and detailed address:
Net weight, gross weight, volume, etc.
Words and marks such as "Handle with care", "Upward", "Fragile", etc. The words and marks should comply with the requirements of G喪191. d.
8.3 Technical documents provided with the product
Packing list:
Product certificate,
Instructions for use (one copy for each set of counters). 8.4 Transportation and storage
Product transportation, loading and unloading and storage should comply with the requirements of Article 8.2 Item d. If the product has other special requirements for transportation, loading and unloading and storage, the manufacturer should clearly mark it on the packaging box.
8. 5 Warranty period
If the user complies with the transportation, storage and use rules stipulated by the manufacturer, the manufacturer shall repair or replace the product for free within two years from the date of shipment from the manufacturer if the product is damaged due to poor quality or cannot operate normally. Additional remarks:
This standard is issued by the National Technical Committee for Standardization of Lightning Arrester: This standard is under the jurisdiction of Xi'an Electric Ceramics Research Institute. This standard was drafted by Shanghai Electric Ceramics Factory. The main drafters of this standard are Zhe Taiyi, Yuan Tianning and Ping Yuan. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 5
JB/T2440
Yan880b1230
19XXXX Ridge
100044
Dai DuanX/X
Zhang JuXXX,XXX
19XX JiXX Cabin
X Wei Flounder
De pxXX.XX Wing
Xian Ji Lotus Snapper6 items
Test name
Counter
Non-electric patch
Counter
Counter
Sampling test
In order to control product quality, the inspection department of the manufacturer must conduct sampling tests regularly or by batch. The items and methods are specified in Table 3. Table 3 Counter sampling test items
Test name
Action performance test under upper limit action current Square and impulse current withstand test of non-linear resistor, Test basis
1 Article 5.4
Article R.5
Test method
Article 6.3.2
Article B.4.1
Test product name
Non-linear resistor
Test product quantity
3% (not less than 3 pieces)
10 pieces (5 pieces each)
Type test
Before new products are put into production, all items of type test must be carried out. After passing the type test, there is no need to repeat it. However, when the entire series of products is discontinued for more than one year or when the changes in the product structure, material, and manufacturing process affect the product performance, the relevant part or all type test items must be tested. The type test items and methods of
counters are specified in Table 4. Table 4 Type test items for counters
Test name
Appearance and dimension inspection
Residual voltage test at nominal discharge current
Operation performance test for counters
Current impulse withstand test for nonlinear resistors
External insulation withstand voltage test for counters
Test basis
Article 5.1
Article 5.2
Article 5.8
Article 5.3
Article 5.4
Article 5.5
Article 5.6Www.bzxZ.net
Article 5.7
Test method
Vernier caliper
Article 6.2
Article 6.3
Article 6.5 Article
Article 6.6
Test name
Counter
Non-linear resistor
Actuator (excluding
Internal parts
Counter quantity
Number of test pieces
15 pieces (5 pieces each
7.5 Acceptance test
When acceptance test is required, the following test shall be performed by extracting the smallest integer greater than the cube root according to the number of counters supplied. 1.5.1 Appearance and shape inspection
Inspect the appearance, shape, brand and accessories for any missing or damaged. 7.5.2 Counter action performance test The action performance test of the upper and lower limits of the action current shall be carried out in accordance with the factory test requirements specified in Articles 6.3.1 and 6.3.2 of this standard. 8 Marking, packaging, transportation, storage and warranty period 8.1 Marking
JB/T2440
Each meter should have an obvious fixed label, and the label should be clearly marked as follows: 1. Name and trademark of the meter,
Name and model of the meter:
Date and number of manufacture;
Nominal current and square wave current value (if the model cannot reflect it, indicate it), 8. 2 Packaging
Counting packaging must ensure that it will not be damaged during transportation due to poor packaging. The packaging should indicate the product name, model and manufacturer name:
Shipping unit and detailed address:
Net weight, gross weight, volume, etc.
Words and marks such as "Handle with care", "Upward", "Fragile", etc. The words and marks should comply with the requirements of G喪191. d.
8.3 Technical documents provided with the product
Packing list:
Product certificate,
Instructions for use (one copy for each set of counters). 8.4 Transportation and storage
Product transportation, loading and unloading and storage should comply with the requirements of Article 8.2 Item d. If the product has other special requirements for transportation, loading and unloading and storage, the manufacturer should clearly mark it on the packaging box.
8. 5 Warranty period
If the user complies with the transportation, storage and use rules stipulated by the manufacturer, the manufacturer shall repair or replace the product for free within two years from the date of shipment from the manufacturer if the product is damaged due to poor quality or cannot operate normally. Additional remarks:
This standard is issued by the National Technical Committee for Standardization of Lightning Arrester: This standard is under the jurisdiction of Xi'an Electric Ceramics Research Institute. This standard was drafted by Shanghai Electric Ceramics Factory. The main drafters of this standard are Zhe Taiyi, Yuan Tianning and Ping Yuan. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 5
JB/T2440
Yan880b1230
19XXXX Ridge
100044
Dai DuanX/X
Zhang JuXXX,XXX
19XX JiXX Cabin
X Wei Flounder
De pxXX.XX Wing
Xian Ji Lotus Snapper6 items
Test name
Counter
Non-electric patch
Counter
Counter
Sampling test
In order to control product quality, the inspection department of the manufacturer must conduct sampling tests regularly or by batch. The items and methods are specified in Table 3. Table 3 Counter sampling test items
Test name
Action performance test under upper limit action current Square and impulse current withstand test of non-linear resistor, Test basis
1 Article 5.4
Article R.5
Test method
Article 6.3.2
Article B.4.1
Test product name
Non-linear resistor
Test product quantity
3% (not less than 3 pieces)
10 pieces (5 pieces each)
Type test
Before new products are put into production, all items of type test must be carried out. After passing the type test, there is no need to repeat it. However, when the entire series of products is discontinued for more than one year or when the changes in the product structure, material, and manufacturing process affect the product performance, the relevant part or all type test items must be tested. The type test items and methods of
counters are specified in Table 4. Table 4 Type test items for counters
Test name
Appearance and dimension inspection
Residual voltage test at nominal discharge current
Operation performance test for counters
Current impulse withstand test for nonlinear resistors
External insulation withstand voltage test for counters
Test basis
Article 5.1
Article 5.2
Article 5.8
Article 5.3
Article 5.4
Article 5.5
Article 5.6
Article 5.7
Test method
Vernier caliper
Article 6.2
Article 6.3
Article 6.5 Article
Article 6.6
Test name
Counter
Non-linear resistor
Actuator (excluding
Internal parts
Counter quantity
Number of test pieces
15 pieces (5 pieces each
7.5 Acceptance test
When acceptance test is required, the following test shall be performed by extracting the smallest integer greater than the cube root according to the number of counters supplied. 1.5.1 Appearance and shape inspection
Inspect the appearance, shape, brand and accessories for any missing or damaged. 7.5.2 Counter action performance test The action performance test of the upper and lower limits of the action current shall be carried out in accordance with the factory test requirements specified in Articles 6.3.1 and 6.3.2 of this standard. 8 Marking, packaging, transportation, storage and warranty period 8.1 Marking
JB/T2440
Each meter should have an obvious fixed label, and the label should be clearly marked as follows: 1. Name and trademark of the meter,
Name and model of the meter:
Date and number of manufacture;
Nominal current and square wave current value (if the model cannot reflect it, indicate it), 8. 2 Packaging
Counting packaging must ensure that it will not be damaged during transportation due to poor packaging. The packaging should indicate the product name, model and manufacturer name:
Shipping unit and detailed address:
Net weight, gross weight, volume, etc.
Words and marks such as "Handle with care", "Upward", "Fragile", etc. The words and marks should comply with the requirements of G喪191. d.
8.3 Technical documents provided with the product
Packing list:
Product certificate,
Instructions for use (one copy for each set of counters). 8.4 Transportation and storage
Product transportation, loading and unloading and storage should comply with the requirements of Article 8.2 Item d. If the product has other special requirements for transportation, loading and unloading and storage, the manufacturer should clearly mark it on the packaging box.
8. 5 Warranty period
If the user complies with the transportation, storage and use rules stipulated by the manufacturer, the manufacturer shall repair or replace the product for free within two years from the date of shipment from the manufacturer if the product is damaged due to poor quality or cannot operate normally. Additional remarks:
This standard is issued by the National Technical Committee for Standardization of Lightning Arrester: This standard is under the jurisdiction of Xi'an Electric Ceramics Research Institute. This standard was drafted by Shanghai Electric Ceramics Factory. The main drafters of this standard are Zhe Taiyi, Yuan Tianning and Ping Yuan. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 5
JB/T2440
Yan880b1230
19XXXX Ridge
100044
Dai DuanX/X
Zhang JuXXX,XXX
19XX JiXX Cabin
X Wei Flounder
De pxXX.XX Wing
Xian Ji Lotus Snapper
8.3 Technical documents provided with the product
Packing list:
Product certificate,
Instruction manual (1 copy for each set of counters). 8.4 Transportation and storage
Product transportation, loading and unloading and storage shall comply with the requirements of 8.2 Item d. If the product has other special requirements for transportation, loading and unloading and storage, the manufacturer shall clearly mark it on the packaging box.
8. 5 Warranty period
If the user complies with the transportation, storage and use rules specified by the manufacturer, the manufacturer shall repair or replace the product for the user free of charge within two years from the date of shipment from the manufacturer if the product is damaged due to poor quality or cannot operate normally. Additional remarks:
This standard is issued by the National Technical Committee for Standardization of Lightning Arrester: This standard is under the jurisdiction of Xi'an Electric Ceramics Research Institute. This standard was drafted by Shanghai Electric Ceramics Factory. The main drafters of this standard are Zhe Taiyi, Yuan Tianning and Ping Yuan. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 5
JB/T2440
Yan 880b1230
19XXXX Ridge
100044
Dai Duan X/X
Zhang Ju XXX,XXX
19XX Collection XX Cabin
X Wei Flounder
De pxXX.XX Wing
Xian Ji Lotus Snapper
8.3 Technical documents provided with the product
Packing list:
Product certificate,
Instruction manual (1 copy for each set of counters). 8.4 Transportation and storage
Product transportation, loading and unloading and storage shall comply with the requirements of 8.2 Item d. If the product has other special requirements for transportation, loading and unloading and storage, the manufacturer shall clearly mark it on the packaging box.
8. 5 Warranty period
If the user complies with the transportation, storage and use rules specified by the manufacturer, the manufacturer shall repair or replace the product for the user free of charge within two years from the date of shipment from the manufacturer if the product is damaged due to poor quality or cannot operate normally. Additional remarks:
This standard is issued by the National Technical Committee for Standardization of Lightning Arrester: This standard is under the jurisdiction of Xi'an Electric Ceramics Research Institute. This standard was drafted by Shanghai Electric Ceramics Factory. The main drafters of this standard are Zhe Taiyi, Yuan Tianning and Ping Yuan. This standard is interpreted by Xi'an Electric Ceramics Research Institute. 5
JB/T2440
Yan 880b1230
19XXXX Ridge
100044
Dai Duan X/X
Zhang Ju XXX,XXX
19XX Collection XX Cabin
X Wei Flounder
De pxXX.XX Wing
Xian Ji Lotus Snapper
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