JB/T 6479-1992 Metal oxide arresters with series gap for use as line surge arresters in AC power systems
Some standard content:
K49 | | tt | | JB |
14
GR20P uxDEe/
1 Subject content and applicable scope
JB/T64791992
This standard specifies the use of wave arresters for AC power system lines It contains the technical requirements, test methods, inspection rules, marking, packaging and transportation of series gap metal oxide arresters (hereinafter referred to as arresters). This standard only applies to lightning arresters for overvoltage protection of line arresters in AC power systems.
2 reference standards
GB311.2
GB311.3
GB311.4
GB191bzxZ.net
GB775.3||tt| |GB2900.12
GB2900.19
GB7330
GB7327
3 Terms
High Voltage Test Technology Part 1 General Test Conditions and Requirements Part 2 Test procedures
High voltage test technology
Measuring device
High voltage test technology Part 3
Packaging, storage and transportation reading mark
Insulator test method Part 3 Mechanical test methods Electrical terminology Lightning arrester
Electrical terminology Insulation coordination and high voltage test technology AC power system line arrester
Silicon carbide valve type arrester for AC system
This standard institute The terminology involved complies with the regulations of GB2900.12, CB2900.19 and GB7330. 4 Conditions for use of lightning arresters
Under the following normal use conditions, lightning arresters that comply with this standard are suitable for indoor and outdoor operation. The ambient temperature is not higher than 10-40℃ and not lower than 10-40℃; the altitude is not more than 1000m;
b.
c
The rated frequency of the power system is 50Hz and 60Hzd. Under abnormal conditions, the arrester needs to be negotiated by both parties. Note: The working environment temperature of the arrester shall not be higher than +80°C and not lower than -40°C. STechnical requirements
Arrester shall comply with the requirements of this standard. And should be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.1 Standard rating of arrester
5.1.1 Rated voltage of arrester
The rated voltage value of the arrester is in kV (effective value). The rated voltage of the arrester is divided into the following levels: 1992-08-06rat
1
1993-01-01
JB/T64791992
0.6, 1.0, 1.5 , 1.9, 2.4, 3.0, 3.8, 4.8, 6.1, 7.6, 9.5, 12, 15, 19, 24, 30, 38, 48, 61kV The rated voltage U of the arrester is selected according to the calculation result of the following formula: U.≥1.2U
In the formula: U-rated short-time current voltage drop between both ends of the wave arrester, measured in kV (effective value); U=2 yuan fLlnX10-3
1.2-comprehensive correction coefficient, It takes into account the manufacturing error and measurement error of the rated inductance value, the power frequency inductance is greater than the rated inductance and the non-periodic component in the short-time current, etc., fp - rated industrial frequency, Hz
Le - main coil of the wave arrester Rated inductance, mH
In—rated short-time current of the main coil of the wave arrester, kA. 5.1.2 Rated frequency of arrester
The rated frequency of arrester is 50Hz and 60Hz. 5.1.3 Nominal discharge current of the arrester
The nominal discharge current of the arrester is divided into three levels: 5kA, 10kA and 20kA. Electrical characteristics of the arrester
5. 2
The electrical characteristics of the arrester should comply with the table 1 regulations. Table 1
smell avoider rating
constant voltage
(effective value)
Ue
0.6
1.0
1.5
1. 9
2.4
3.0
3.8
4.8
6.1
7.6
9.5
12
15
19
24
30
38
48
power frequency Discharge voltage
(effective value)
is not less than
0.7
1.2
1.8
2.3
2.9|| tt||3.6
4. 6
5.8
7.3
9.1
11.4
14.4
18. 0
22.8
28.8
36.0
45.6
57.6
is not greater than
1.0
1.7| |tt||2.5
3.2
4.0
5.0
6. 4
8.1
10.3
12.8| |tt||15.0
17.3
21.6
27.4
34. 6
43.2
54.7
69.1| |tt||Arrester electrical characteristics
1.2/50ug
Impact discharge voltage
peak value)
not greater than
1. 6
2.8
4.1
5.1
6.5
8.1
10.2
12.4
15.7
19.6| |tt||24.5
26.5
33. 0
42.0
53.0
66.1
83.7
105.7| |tt||Wavefront impact
Discharge voltage
(bee value)
not greater than
2.0
3.4
5.0|| tt||6.3
8.0
10.0
12.5
15.2
19.3
24.1
30.1||tt| |32.6
40. 6
51.7
65.2
81.3
103.0
130.0
5kA||tt| |1.8
3.0
4.5
5.7
7.2
9. 0
11.4
14. 4|| tt||18.3
22.9
28. 6
36.1
45.2
57.2
72.2
90.3|| tt||114.4
144.5
Residual voltage at nominal current
(8/20μs)
(peak value)
10kA
-
5.7
7.2
9.0
11.4
14. 4
18.3
22.9
28.6
36.1
45.2
57. 2
72.2
90.3
114. 4
144.5||tt ||ky.
20kA
6. 3
7.9
9. 9
12.5
15.8
20.1
25.2
31.5
39.7
49. 7
62.9
79.4
99.3
125.8
159.0
2
Arrester rating
Constant voltage
(effective value)
Ux
61
Working discharge Voltage
(effective value)
is not less than
73.2
5.3 Arrester surge current withstand performance
is not greater than
87.8|| tt||JB/T64791992
Continued Table 1
1.2/50s
Impact discharge voltage
(peak value)
not greater than
134.3
Wavefront impact
Discharge voltage
(peak value)
not greater than
165.2
5kA
183.6| |tt||Nominal voltage with lower voltage
(8/20μs)
(peak value)
10 kA
183.6
Arrester surge current The tolerance is divided into square wave impulse current tolerance, lightning impulse current tolerance and large current impulse tolerance. Test samples with square wave impulse current tolerance should be able to withstand 2000μs square wave current 18 times respectively. Test samples with lightning impulse current tolerance should be able to withstand 8/20us impulse current 20 times respectively. Test samples with high current impulse tolerance should be able to withstand 4/10μs impulse current twice respectively. The current value used for the surge current withstand test of the arrester should be specified in Table 2. Table 2 Current values ??for arrester impulse current withstand test Nominal arrester
Discharge current
(bee value)
5
10
20|| tt||5.4 arrester capacitance
8/20μs impulse current
withstand test
(peak value)
5
10||tt ||20
The capacitance of the entire arrester is not greater than 35PF. 5.5 DC 1mA voltage of arrester
The valve pieces of the arrester should measure the DC 1mA voltage value respectively. 4/10us high current
Impact test
(peak value)
40
65
100
kv||tt| |20kA
202.0
kA
2000s square wave impact
Current withstand test
A
(bee value)||tt ||300
400
600
The DC 1mA voltage value of the arrester for each voltage level is determined by the manufacturer. But its value is not less than √2Ue. 5.6 Leakage (conductance) current
The DC voltage value and current value of each voltage level arrester when measuring leakage (conductance) current are determined by the manufacturer. 5.7 Arrester operating load performance
The arrester should withstand 20 operating load tests at the rated voltage of the arrester. The waveform of the impulse ignition current is 8/20μs, and its amplitude is the nominal discharge current value of the arrester. The change in the average power frequency discharge voltage before and after the test and the change in residual voltage under the nominal discharge current of the same polarity should not be greater than 10%.
5.8 Lightning arrester sealing performance
The arrester should have reliable sealing.
5.9 Arrester external insulation performance
The power frequency withstand voltage of the arrester's external insulation in dry and wet states and the lightning impulse withstand voltage in dry state should not be lower than the power frequency discharge in Table 1 respectively The upper voltage limit is 1.5 times the wavefront impulse discharge voltage. 5.10 Mechanical strength of the arrester
The arrester should be able to withstand the maximum allowable pulling force of 150N (when Ur≤10kV) and 300N (when Ur>10kV) perpendicular to the top of the arrester axis.
3
5.11 Requirements for arrester structure and metal accessories JB/T64791992
The materials used in the structure of each part of the arrester and the metal accessories should prevent the alternating electromagnetic field in the main line of the matching arrester The generated eddy current heating and electrodynamic force can cause overheating or damage to the arrester, such as using non-magnetic materials or other measures. 6 Test methods
6.1 Test specimens and measuring equipment
All test specimens should be new, clean, dry, and fully assembled. The test conditions should comply with the requirements of GB311.2. The test procedures should comply with the requirements of GB311.3. The measuring equipment should comply with the requirements of GB311.4. The impulse voltage waveform and impulse current waveform shall comply with the provisions of Articles 4.2.1, 4.3.1 and 4.3.2 of GB7327. The AC voltage frequency range of the power frequency voltage test is between 48 and 52 Hz or 58 and 62 Hz. The waveform is approximately a sine wave, and the ratio of its bee value to the effective value should be within the range of √ 2 ± 0.07. 6.2 Power frequency discharge voltage test of arrester
The power frequency discharge voltage test should be carried out on the entire arrester at an ambient temperature of 20±15℃. The voltage applied to the test sample should start from zero. When the voltage can be accurately measured, Under certain conditions, the temperature rises evenly until the gap between the test specimens is discharged. After each discharge, the industrial frequency power supply should be cut off within 0.5s. The power frequency current passing through the test product should be limited to less than 0.1A (effective value). The time interval between each two tests should be no less than 103. During the factory test, the number of measurements should be 3. During type testing, the number of measurements should be 6. The measured dry power frequency discharge electric value should comply with the requirements in Table 1.
The type test should also conduct a power frequency discharge test. The number of measurements is 6, and the arithmetic mean value should comply with the values ??specified in Table 1. Except for intermittent discharge, no flashover shall occur in any insulating part. 6.3 Arrester impulse discharge voltage test
6.3.11.2/50μs impulse discharge test: Use the impulse voltage of 1.2/50μs waveform and the expected value specified in Table 1 to apply positive and negative polarities to the entire arrester. The arrester should be discharged 5 times. If there is no discharge once, the impulse voltage of the same polarity should be applied 10 times again. The arrester should be discharged, and the sample is deemed to have passed this test.
6.3.2 Arrester wave front impact discharge test This test should be carried out on the entire arrester. The test method is carried out in accordance with Article 4.2.3 of GB7327. The wave front discharge voltage value shall not be greater than that specified in Table 1. value. The wavefront steepness is specified as follows: a. When the rated voltage of the arrester is Us6.1kV, the wavefront steepness should be such that the pre-discharge time is <0.1μs; when b.7.6kV≤U≤30kV, the wavefront steepness should be no less than 200kV/us; when Ur>30kV, the wavefront steepness should be Make the pre-discharge time no more than 0.5μs. c.
This test should be carried out on the entire arrester. The positive and negative polarities are applied to the arrester 5 times each. The discharge voltage value should not be greater than the value specified in Table 1.
Residual voltage test under nominal discharge current
6.4
Type test is carried out on the arrester or arrester proportional unit, and factory test, sampling test and acceptance test are carried out on the valve plate. . The arrester residual pressure is the arithmetic sum of the residual pressure of each valve plate. During type testing, the rated voltage of the proportional unit of the sample is 36kV. There are 3 test samples. During the test, the corresponding residual voltage of each test sample is measured using the nominal discharge current of the arrester with a bee value of approximately 0.5, 1 and 2 times, and the maximum envelope of the 9 test points is drawn. Volt-ampere characteristic curve, and then read the residual voltage value of the nominal discharge current on the curve. This residual voltage value multiplied by the proportional coefficient of the arrester and the proportional unit is the residual voltage of the arrester.
The ambient temperature during the test is 25±10°C. The time interval between two adjacent tests should be sufficient to allow the sample to cool to the ambient temperature. 6.5 Arrester impulse current withstand test
The ambient temperature during the test is 25±10°C, and the test current polarity should be the same as the current polarity when measuring the residual voltage. During the pumping test, the sample for the surge current withstand test of the arrester is the valve plate. 4
JB/T64791992
Extract 13 pieces with the highest DC 1mA voltage from the test pieces and divide them into 3 groups.Two groups of test samples each contain 5 pieces, and one group of samples contains 3 pieces with the highest 1mA voltage. The first two groups of samples were subjected to square wave impulse current withstand tests and lightning impulse current withstand tests respectively. The latter group of samples are subjected to a large current impulse withstand test, and the test current value is specified in Table 2. During the square wave impulse current withstand test, the valve plate should withstand 18 tests. The test is divided into 6 rounds, 3 times in each round. The time interval between each two adjacent current impulses is 50 to 60 seconds. The time interval should be sufficient to allow the valve plate to cool to ambient temperature. After the test, when the sample is cooled to ambient temperature, the residual voltage is measured repeatedly: under the nominal discharge current of the same polarity before and after the test (the deviation of the current value before and after the test should be less than 3%), the change in the residual voltage of each sample shall not be greater than 10%. During the lightning impulse current withstand test, each valve piece should withstand 20 times. The test is divided into 4 rounds of 5 times each. The time interval between two adjacent rounds is 50 to 60 seconds. The time interval between each adjacent round is 50 to 60 seconds. The time interval should be sufficient to allow the valve plate to cool to the ambient temperature. When the valve plate is cooled to the ambient temperature before and after the test, the residual voltage of each sample under the nominal discharge current of the same polarity shall not change by more than 10%. During the high current impulse withstand test, each valve piece should be able to withstand 4/10us impulse current twice. The valve plate must not have breakdown or flashover phenomena. During the type test, the square wave impulse current withstand test and the lightning impulse current withstand test are the same as the sampling test. The high current impulse withstand test sample should be a lightning arrester or proportional unit. The rated voltage of the proportional unit is 3~6kV, and the valve plate must not have breakdown or flashover after the test. The change in the average power frequency discharge voltage of the test sample gap should not be greater than 20%. If one valve piece of the test sample fails to withstand the specified number of times during the impact withstand test, double the number and extract the piece with the highest DC 1mA voltage and do the test again. If the second test is all qualified, the test is deemed to be qualified; otherwise, the test is deemed to be unqualified. Valve discs that have passed the current impulse withstand test are not allowed to be put into products for use. 6.6 Action negative cutting test
The test should be carried out on the arrester or proportional unit. When the test sample is a proportional unit, the rated voltage of the proportional unit should be 3~12V. Before the test, the sample should be preheated in a careful temperature chamber at 85 ± 3°C for 2 hours, and the test should be carried out within 5 minutes. Before the test, the power frequency discharge voltage and the residual voltage under the nominal discharge current of the test sample should be measured at an ambient temperature of 25±10°C. During the operating load test, during the freewheeling period, the peak value of the power frequency voltage applied to both ends of the test product shall not be lower than the peak value of the rated voltage of the test product. After the freewheeling current is cut off, the peak value of the power supply voltage shall not be greater than 103% of the rated voltage value of the test product. This voltage increment is only for reasonable selection of the test power supply and cannot be used as a reason to exceed the rated voltage of the arrester in actual operation.
The ignition uses an 8/20us impulse current, its peak value is the nominal discharge current of the arrester, and the ignition angle is approximately 4560 electrical angles before the voltage peak.
Each sample is tested 20 times, and the test is divided into 4 rounds. After each round of testing 5 times, the sample must be placed in the incubator as soon as possible. The power frequency voltage is not continuously applied between each two rounds, but the power frequency voltage should be continuously applied within each round. After the last test of the last round, the power frequency voltage shall be continuously applied for at least 105°C.
In the 20 tests, the number of heteropolar ignitions should be 2. During each test, the freewheeling flow of the test sample should be cut off. Power frequency voltage and freewheeling oscillograms should be recorded for each test. In the oscillogram, there is at least one complete power frequency voltage wave before and after the operating load test. After the operating load test, wait for the test sample to cool to the ambient temperature. Repeat the measurement of the power frequency discharge voltage and the residual voltage under the nominal current (the deviation of the nominal discharge current before and after the test should be less than 3%). The change in the average frequency discharge voltage and the change in residual voltage under nominal current should not be greater than 10%.
The valve disc and spacer that have passed the action load test must not be installed into the product for use. 6.7 Arrester sealing test
It is recommended to use a hydrogen mass spectrometer leak detector to test the seal, which is required to be less than 6.65×10°P.·L/s. When conditions are not met, other effective methods are allowed to be used to conduct this test.
6.8 Arrester mechanical strength test
The test method shall comply with the provisions of GB775.3, and the test tensile force shall not be less than 2.5 times the maximum allowable tensile force in Article 5.9. 6.9 DC 1mA voltage test
The ambient temperature during the test is 25±10℃.
5
JB/T64791992
Apply a certain DC voltage to the valve plate and measure the voltage (residual voltage) value when the current flowing through the valve plate is 1mA. The pulsating part of the DC power supply used for testing should not exceed ±1.5%. 6.10 Leakage (conductance) current test
The ambient temperature during the test is 25°C and 10°C.
Apply the specified DC voltage to the arrester and measure the leakage (conductance) current value of the arrester. The pulsating part of the DC power supply voltage for testing should not exceed ±1.5%. 6.11 Arrester external insulation test
The test sample should be clean.
There are 3 samples, which are the entire arrester porcelain sleeve except for the internal gap, valve plate and other components of the arrester. External metal accessories shall be retained and the specific test requirements shall comply with Article 5.9.
The test method should comply with the regulations of GB311.2 and GB311.3. 6.12 Arrester capacitance test
Use a capacitor bridge for measurement, and the frequency is 1kHz. Inspection rules
7
General rules
7.1
The arrester should be inspected by the technical inspection department of the manufacturer. The manufacturer should ensure that all shipped products meet the requirements of this standard. Users have the right to inspect and accept surge arresters in accordance with the provisions of this standard. The inspection of arresters is divided into four types: factory test, sampling test, type test and acceptance test. The test methods should comply with the provisions of this standard.
Outgoing test
7.2
Every arrester leaving the factory should be inspected according to the provisions of Table 3. If one test fails, the arrester fails. Table 3 Arrester factory test items
serial number
7
2
3
5
6
7.3|| tt||Test name
DC ImA voltage test
Residual voltage test under nominal discharge current
Power frequency discharge voltage test
: 1.2/50 impulse discharge voltage test
Arrester capacitance test
Sealing test
Leakage (conductance) current test
Sampling test
Test according to
Article 5.5
Article 5.2
Article 5.2
Article 5.2
Article 5.4
Article 5.8
Article 5.6|| tt||Test method
Article 6.9
Article 6.4
Article 6.2
Article 6.3.1
Article 6.12||tt ||Article 6.7
Article 6.10
Trial
Product
Valve plate
Valve plate
Arrester
Lightning arrester
Lightning arrester
Lightning arrester
Lightning arrester
In order to control product quality, the manufacturer's inspection department must conduct sampling tests regularly or by batch. The division of batches is determined by the manufacturer. The test shall be checked as specified in Table 4.
Table 4 Arrester Sampling Test
Sequence
1
2
3
No.
Test name||tt ||Square wave impulse current withstand test
Lightning impulse current withstand test
High current impulse withstand test
Test basis
Article 5.3||tt| |Article 5.3
Article 5.3
Test method
Article 6.5
Article 6.5
Article 6.5
(5 pieces)
Valve plate (5 pieces)
Valve plate (3 pieces)
Note: For item 3, the manufacturer should conduct a major inspection of the valve plate every six months to one year. Current surge current withstand test. Test
product
6
JB/T64791992
If any of the test items in Table 4 fails, double the quantity test will be carried out as usual. If it still fails, the batch of valves will be scrapped. 7.4
Type test
Before new products are put into production, type tests should be carried out on all items. Type tests are only carried out once. When changes in design, materials, and processes affect product performance, only relevant items need to be tested. For example, when resuming production after a one-year suspension, type tests on all items are required. The tests should be carried out in accordance with the provisions of Table 5.
Table 5 Type test items for lightning arresters
Serial number
3
5
6
9
10
11
12
13
14
7. 5
Sealing test
Test name
Power frequency discharge voltage test
DC 1mA voltage test
1.2/50 impulse discharge voltage test
Front wave impulse discharge voltage test
Nominal discharge current residual voltage test
Lightning impulse current withstand test
Square wave current withstand test
Large current impulse withstand test
Action load test
Capacitance test
Leakage current test
Machine Alkali strength test
External insulation test
Acceptance test
Test basis
Article 5.8
Article 5.2
Article 5.5
Article 5.2
Article 5.2
Article 5.2
Article 5.3
Article 5.3
Article 5.3
Article 5.1
Article 5.4
Article 5.6
Article 5.10
Article 5. 9 Articles
Test methods
Article 6.7
Article 6.2
Article 6.9
3 lightning arresters
3 lightning arresters
Test
Product
Arithmetic sum of voltage U per piece of 3 lightning arresters
Article 6.3.1
3 lightning arresters
Article 6.3.2
Article 6.4
Article 6.5
Article 6.5
Article 6.5
Article 6.6
Article 6.12||t t||Article 6.10
Article 6.8
Article 6.11
3 lightning arresters
3 lightning arresters or 3 proportional units
5 valve plates
5 valve plates
3 lightning arrester proportional units
3 lightning arresters or 3 proportional units
3 chisel arresters
3 retention arresters
1 lightning arrester
1 surface arrester porcelain sleeve with metal accessories
When the purchaser stipulates acceptance tests in the order agreement, three lightning arresters supplied should be taken for the following tests, as shown in Table 6. Table 6 Acceptance test items
Serial number
+
2
3
5
External inspection
Test item name
Power frequency discharge voltage test
1.2/50 impulse discharge voltage test
Residual voltage test under nominal discharge current
Sealing test
Leakage (conductivity) current test
Marking, packaging, transportation
8
Test basisTest method
Article 5.2
Article 5.2
Article 5.8
Article 5.6
Article 6.2
Article 6.3.1 Article
Article 6.4
Article 6.7
Article 6.10
3 lightning arresters
3 lightning arresters
3 lightning arresters
Test
3 lightning arresters, the residual pressure of each lightning arrester valve piece is calculated and 3 lightning arresters
3 lightning arresters
The marking, packaging and transportation of lightning arresters shall comply with the requirements of GB191 packaging, storage and transportation graphic marking. 8.1 Marking
Each lightning arrester shall have a nameplate fixed in a conspicuous position. The following contents shall be clearly marked on the nameplate: a.
b.
c.
7
Manufacturer name and trademark;
Arrester model and name;
Rated voltage and nominal discharge current value of arrester: d.Leakage (conductivity) current value and test voltage: Date of manufacture and serial number.
e.
8.2 Packaging
JB/T 64791992
Arrester packaging must ensure that it is not damaged due to poor packaging during transportation. The packaging box shall be marked with: B.
b.
d.
Product name, model, manufacturer name:
Shipping unit, receiving unit and detailed address; Product net weight, gross weight, volume, etc.:
Words and marks such as "handle with care", "upward", and "fragile". 8.3 Provide technical documents with the arrester
B.
Packing list;
Factory certificate:
b.
Installation and operation instructions.
c.
8.4 Transportation
The packaging of the whole arrester or the parts to be transported separately must meet the requirements of transportation and loading and unloading. If the transportation is carried out in the urban area where the manufacturer is located, the manufacturer can decide the packaging method according to the situation while ensuring the quality and safety of the product. 8.5 Warranty period
Under the condition that the user complies with the transportation, storage and use rules stipulated by the manufacturer, if the product is damaged or cannot operate normally due to poor quality within three years from the date of shipment from the manufacturer, the manufacturer shall repair or replace it for the user free of charge. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Arrester. This standard is under the jurisdiction of the Xi'an Electric Ceramics Research Institute of the Ministry of Electronic Industry of Shanxi Machinery. This standard was drafted by the Xi'an Electric Ceramics Research Institute. The main drafters of this standard are Zhang Wenhua, Guo Xiangfu, Shen Qigong, and Zhang Yushi. 8
11 items
3 lightning arresters
3 lightning arresters or 3 proportional units
5 valve plates
5 valve plates
3 lightning arresters proportional units
3 lightning arresters or 3 proportional units
3 chisel arresters
3 retention arresters
1 lightning arrester
1 surface arrester porcelain sleeve with metal accessories
When the purchaser stipulates acceptance tests in the order agreement, three lightning arresters supplied should be taken for the following tests, as shown in Table 6. Table 6 Acceptance test items
Serial number
+
2
3
5
External inspection
Test item name
Power frequency discharge voltage test
1.2/50 impulse discharge voltage test
Residual voltage test under nominal discharge current
Sealing test
Leakage (conductivity) current test
Marking, packaging, transportation
8
Test basisTest method
Article 5.2
Article 5.2
Article 5.8
Article 5.6
Article 6.2
Article 6.3.1 Article
Article 6.4
Article 6.7
Article 6.10
3 lightning arresters
3 lightning arresters
3 lightning arresters
Test
3 lightning arresters, the residual pressure of each lightning arrester valve piece is calculated and 3 lightning arresters
3 lightning arresters
The marking, packaging and transportation of lightning arresters shall comply with the requirements of GB191 packaging, storage and transportation graphic marking. 8.1 Marking
Each lightning arrester shall have a nameplate fixed in a conspicuous position. The following contents shall be clearly marked on the nameplate: a.
b.
c.
7
Manufacturer name and trademark;
Arrester model and name;
Rated voltage and nominal discharge current value of arrester: d.Leakage (conductivity) current value and test voltage: Date of manufacture and serial number.
e.
8.2 Packaging
JB/T 64791992
Arrester packaging must ensure that it is not damaged due to poor packaging during transportation. The packaging box shall be marked with: B.
b.
d.
Product name, model, manufacturer name:
Shipping unit, receiving unit and detailed address; Product net weight, gross weight, volume, etc.:
Words and marks such as "handle with care", "upward", and "fragile". 8.3 Provide technical documents with the arrester
B.
Packing list;
Factory certificate:
b.
Installation and operation instructions.
c.
8.4 Transportation
The packaging of the whole arrester or the parts to be transported separately must meet the requirements of transportation and loading and unloading. If the transportation is carried out in the urban area where the manufacturer is located, the manufacturer can decide the packaging method according to the situation while ensuring the quality and safety of the product. 8.5 Warranty period
Under the condition that the user complies with the transportation, storage and use rules stipulated by the manufacturer, if the product is damaged or cannot operate normally due to poor quality within three years from the date of shipment from the manufacturer, the manufacturer shall repair or replace it for the user free of charge. Additional remarks:
This standard was proposed by the National Technical Committee for Standardization of Arrester. This standard is under the jurisdiction of the Xi'an Electric Ceramics Research Institute of the Ministry of Electronic Industry of Shanxi Machinery. This standard was drafted by the Xi'an Electric Ceramics Research Institute. The main drafters of this standard are Zhang Wenhua, Guo Xiangfu, Shen Qigong, and Zhang Yushi. 8
11 items
3 arresters
3 arresters or 3 proportional units
5 valves
5 valves
3 arresters proportion Unit
3 arresters or 3 proportional units
3 arresters
3 arresters
1 arrester
1 arrester Surface device porcelain sleeve with metal accessories
When the purchaser stipulates an acceptance test in the order agreement, three supplied arresters should be taken for the following tests, as shown in Table 6. Table 6 Acceptance Test Items
Serial Number
+
2
3
5
External Regulation Inspection
Test Items Name except
Power frequency discharge voltage test
1.2/50 impulse discharge voltage test
Residual voltage test under nominal discharge current
Sealing test
Leakage (Conductance) Current Test
Marking, packaging, transportation
8
Test based on test method
Article 5.2
Article 5.2||tt| |Article 5.2
Article 5.8
Article 5.6
Article 6.2
Article 6.3.1
Article 6.4|| tt||Article 6.7
Article 6.10
3 arresters
3 arresters
3 arresters
Trial
3 arresters, each arrester valve plate residual voltage arithmetic and 3 arresters
3 arresters
The marking, packaging and transportation of the arrester should comply with the GB191 packaging, storage and transportation pictorial mark Requirements 8.1 Mark
Each arrester should have a nameplate fixed in an obvious position. The nameplate should be clearly marked with the following: a.
b.
c.
7
manufacturer name and trademark;
arrester model and name ;
Rated voltage and nominal discharge current value of arrester: d. Leakage (conductance) current value and test voltage: factory date and serial number.
e.
8.2 Packaging
JB/T 64791992
The arrester packaging must ensure that it is not damaged due to poor packaging during transportation. The packaging box should be marked: B .
b.
d.
Product name, model, manufacturer name:
Shipping unit, receiving unit and detailed address; product net weight, gross weight, Volume, etc.:
"Handle with care", "Upward", "Fragile" and other words and marks. 8.3 Technical documents
B.
packing list;
factory certificate:
b.
installation and operating instructions are provided with the arrester.
c.
8.4 Transportation
The packaging of the entire arrester or the separately transported components must meet the requirements of transportation, loading and unloading. If the product is transported within the urban area where the manufacturer is located, the manufacturer can decide the packaging method according to the situation while ensuring product quality and safety. 8.5 Warranty period
Under the condition that the user abides by the transportation, storage and use rules specified by the manufacturer, if the product is damaged or fails to operate normally due to poor quality within three years from the date of shipment by the manufacturer, the manufacturer will The factory shall repair or replace it free of charge for the user. Additional notes:
This standard was proposed by the National Technical Committee for Standardization of Lightning Arrester. This standard is under the jurisdiction of the Xi'an Electric Porcelain Research Institute of the Ministry of Electronics Industry of Shanji. This standard is drafted by Xi'an Electric Porcelain Research Institute. The main drafters of this standard are Zhang Wenhua, Guo Xiangfu, Shen Qigong, and Zhang Yushi. 8
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