JB/T 10451-2004 Special requirements for multi-user static AC active energy meters
Some standard content:
ICS 1/.220.20
Machinery Industry Standard of the People's Republic of China
JB/T104512004
Particular requirements for multi-users static watt-hour Meters (ac2004-03-12 issued
2004-08-01 implementation
People's Republic of China National Development and Reform Commission issued JB/T10451-2004
modification document
technical definition,
vehicle according to the mode of entry and user quality classification
4.2 Classification of accuracy level of electrical energy measurement
standard quantity
mechanical requirements
gas embedded parts
electrical requirements
early sensor compatibility 1EMC
strict requirements
only special effects
indication error
fighting average
Or test method.
Test piece
Test for machine requirements
Impression test,
Electrical requirements test,
Electromagnetic compatibility test
Accuracy requirements test,
Special attenuation lubrication test.
Indication error test.
Product verification
Inspection and measurement
Classification of non-conformities in inspection
Factory inspection
Acceptance inspection
Type inspection
Marking, instructions,
Packaging and
8.2 Product instruction manual
8.3 Packaging storage
Appendix A: Normative Appendix: Inspection, type inspection and acceptance inspection items F clothing "connection mode and load classification table 10
Table! Distributed system efficiency ..
Table, individual current and line arrangement table 4 Medium voltage line, Table 5 Energy dissipation of optical vehicle
JK/T10451
JB/T10451—2004
This standard is the first to drink the system. bzxz.net
This standard is based on the main technical requirements and test methods of GBT1215T136:24, D) Protection: The characteristics of the product are combined and the requirements for special influencing quantities such as the influence between households, the phase-to-phase sound, and the influence of phase failure are determined. This standard is for patients with health Due to the special nature of energy meters used by users, a two-step solution is proposed, which aims to allocate the risks borne by manufacturers to factories and reduce the intensity of monitoring work. This standard is in compliance with the International Electrotechnical Commission: C) Electric energy basic standard F62052-11. Appendix A of this standard is revised as normative appendix:
This standard is proposed by China National Machinery Industry Federation. This standard is under the jurisdiction of the Technical Committee for Standardization of Instruments and Equipment Design: This standard starts from: Harbin Instrument Research Institute, Shenzhen Ningyun Energy Meter Co., Ltd., Huatong Co., Ltd., Baoding City, No. 1 Industrial Equipment Co., Ltd., Heilongjiang Electric Power Co., Ltd., Shangnan Provincial Measurement and Testing Research Institute, and Shanle Provincial Measurement and Testing Institute.
The founders of this standard are: Zhu Zhu, Ma Qisong, Gao Zuoshi, Xu Renheng, Qu Ji, Zhang Qin, Xu Wei: Li Tuo, Gen Jun 1 Scope
Special requirements for multi-user static AC active energy meters JE104512004
This standard specifies the classification of user static or AC dynamic active energy meters, technical requirements, test methods, acceptance rules, marks, and storage requirements of the quantity part should comply with the provisions of GB/T 17215 standard. This standard is suitable for installation at a fixed frequency of 60Hz (or 6UHz). It can measure the average power of multiple electricity users. The meter is composed of a meter unit in a meter case (register). If the meter is equipped with an average meter unit, such as a large product that only needs to be equipped with an indicator, a charge level, a time switch, a data communication interface, etc., then the combined energy meter model with these functions is used. For non-independent products, the metering room changes according to the number of electricity users, such as the software meter display information: similar products refer to this standard, 2 normative reference documents || tt || The following clauses in the following documents are not in compliance with the standard and become de-standardized. See the original document of the specified period, all subsequent revisions do not include incorrect content; or revisions to the version below do not apply to this standard, and encourage all parties to the agreement based on this standard to study whether the latest version of this document can be used. Edition: For all referenced documents without date, the latest one shall apply to this standard, [H/T2%242I2 Periodic Inspection Number Sampling and Dynamic Details Table (Applicable to: CB9969.1-1991 General Rules for Product Use G/T15239-[994 Number of Samples for Inspection and Oil Samples Table G15464-1995 Instrument Table Packaging Technical Conditions GHT1721520) 21 and 2nd Level Static Formal Communication Energy meter (TEC61036: 20M11E) GR17411 AC meter number (B[7441-1998, C60387: 1992) GBT17626.5-1999 Electromagnetic test and measurement technology standard: Chong Yan 1 expansion test supervision C6[U00-451993:
JNT50KY2002 Electric energy meter = book ticket requirements and assessment methods 150-3: 2 return 1:||t t||6205:1999 Glossary of measurement terms
1 Electrical and electronic measurement techniques 4 Competition:
[FC62053-31:1998 Special requirements for alternating current measuring equipment Part 31: Electromechanical and electrical pulse measuring instruments. 2 Special requirements:
3 Terms and definitions
G/【215 6205 is not applicable to the following definitions without permission. This standard applies to 31
measuringelement
memory
JBT10451 —2004
The total amount of digital information stored
Display
The unit that displays the contents of the memory
Register
can store and display the electromechanical or electronic device that can store and display the electrical information: 1CG05030)Pa314:2(0 meter, in the formal inside, there are other devices and display devices in the register: Note: a single meter is a system", and multiple meters are used together to form multiple meters. 3.6
Multi-user static watt-hour metermulti-users static watt-hour metergs in one meter unit: a certain combination of electronic devices can simultaneously measure the active energy of multiple users. 3.7
Meter input mode of meters also provides the connection method for the distribution bus. 3.7.1
Single-phase meter single-phase power supply input mode singte-phasucnnnection modedenfsingle-phasemeters single-phase meter: multiple connection lines: single-phase power supply connection mode 3.7.2
Single-phase meter three-phase power supply input mode three-phase four-wire connectionkonmodeofsingle-phasemeters single-phasemeters single-phasemeters: multiple connection lines: single-phase power supply connection mode 3.7.3
Three-phase meter input mode cannertimmoddentthree-phasemeter·rejection meter: neutral line output blue-phase four-wire connection mode 3.8
User intrusion influence innuencehctweenurers other metering units input measured changes caused by changes in the measured quantity of the test metering unit. 3.9
InfluencebetweenphastrySingle-phase meter with three-phase power supply, use single-phase power supply as the mode, and the change of electric energy metering error can be solved by two-sweep power supply mode
Interruption influence inlureurlasplase
For single-sweep meter in three-phase power supply, when one or two phases in the power circuit are disconnected, the change of electric energy metering error caused by one-phase power supply is inferred:
The busbar is connected outside the circuit and the current is blocked. Note: The terms used hereto refer to the shape, size and cross-sectional area of the conductor: 1. What shape, size and cross-sectional area are not specified: 3.12
distribution busbar
is a registered line in a meter through which electricity is supplied to users; 3.13
maximum current (naximncurren)
the maximum current value of each metering unit in the meter that meets the requirements of the technical standards; 3.14
maximum current
mgaimuusurcent
the maximum current value that the meter can carry that meets the requirements of the technical standards; 3.15
dispersion coefficient)dividecefrient (f) is the ratio of the maximum current carrying capacity of the meter to the sum of the maximum currents of each unit cell, expressed as: 3.16
user number usernumher
is a general number that is not defined to distinguish each meter unit. 4 Classification
4.1 Classification by downloading method and user responsibility
See point!
Access point entry method and user load classification table Table 1
Production system mode
Production system has
Classification by electric energy measurement accuracy level
Safety measurement electric energy accuracy level is divided into level 1 and level 5 requirements
5.1 Standard setting value
Single-phase power supply single-phase meter
5.1.1--5.1.3 shall comply with the provisions of 4.1.1.4.1.3 of GB/T7215-2002 5.1.4 Dispersion system
The value of the dispersion coefficient of the meter shall not be less than the value specified in Table 2, Table 2 Dispersion coefficient
Measuring unit
5.2 Mechanical requirements
In addition to the provisions of 4.2. of GB7215-2002: At least meet the following requirements 5.2.1 General requirements
1 5/:0451-2004
Three-phase four-wire
Two-phase power supply single-phase instrument
Separate system
The instrument's exterior, terminal, temperature control, etc. are generally clean and tidy, without obvious damage. The user manual, attachments, etc. are complete: the marking should be in accordance with the requirements of JB/T104512004
8.1
The instrument case and the housing should be compatible with the specified machine. The material produces mechanical stress, electrical stress and numerical stress. This material can also easily rot under the influence of moisture that may occur during normal use. 5.2.2 Terminals
Each single core has an independent lead terminal. The terminal size should be sufficient. The wire terminal should be able to withstand the range of conductors and the area of the wire should be suitable for carrying the current. Table 3 gives the relationship between the cross-sectional area of the conductor and the load current.
Table 3 Correspondence between load current and conductor cross-sectional area product Current
20
40 - 60
60~ 80
8u--100
5.2.3 Display of measured values
Equivalent effective area
The machine is a meter or an electronic display to display information. When the display is turned on, the shorter the memory time of its non-volatile memory, the longer the memory time. It can be stipulated in the contract that when a display is used to record multiple metering values, there should be a method to display or obtain the corresponding product number (or code, check and trace back when the display is dynamic: for each reliable display, the aggregation time is not more than 3:5.2.4 Test auxiliary output
The meter has electrical measurement output and optical test output. The most important single device is to have a unique optical test output, and can think correctly from the right, self-test output, see 62053-3.
The optical test output should comply with the requirements of R17215-2.002[142.12.1 and 4.2.12.2. Each presentation should have a unique test output, 5.3 Climate health
Compensation GR/T1721520N02.1.3, in addition, it should meet the requirements X electronic display, under the conditions of vehicle limit 1, carry out the test of 6.3.1, the state of the device should not affect the reading of the device, such as: LCD should not be black screen at high temperature, display delay at low temperature should not appear 54 electrical requirements
5.4.1 Power consumption
6.4.1.1 Voltage line
Multiple ratio electric, one, reference temperature is called ratio drive rate, instrument performance one voltage line drop has active power and standard power consumption I can not be adjusted through the table 4 software standard value:
5.4.1.2 Electric line
Each book current continuous circuit under the basic ratio current, reference power and reference temperature under the current value is not more than the table: take the fixed value, 5.4.2-6.4.7 should comply with 3B/T17215-2002 4.4.2~4.4.7 provisions 5.5 Electrical capacity (EMC::
Virtual compliance GB/17215-20024.5 provisions
Wave proof resistance reduction test according to G17626i.5 current specified hot and low voltage line (including power invitation) power consumption table 4
Individual meter single display
Ni nearly sheep yuan
2W:OVA
2XN:W and:IINVA
JB/I10451—2004
2W and 9VA
2XW and IV||tt| |: 1: To match the three sensors of the meter, this paper is full of cancer or capacitive, and the seat is suitable for the method of making: 2: With a half micro, but the pure value of the switch voltage is allowed, the upper limit value, but to ensure that the fixed value of the voltage mutual inductance connected to the meter is suitable for the meter 5 current circuit power consumption
mother meter unit
5.6 Accuracy requirements
only the meter quality level
5.6.1·5.6.5 should comply with the provisions of GB/117215-2024.6.t--4.6.5 5. 6.6 Inter-household latent influence
When the metering unit is charged with electricity and there is no power on the power line, the voltage applied to the metering unit is the same as the current, and the test output of the measured unit should not produce more than one pulse. 5.7 Special influence quantities of meters
5.7.1 Inter-household influence
Under the specified working conditions: the independent influence of each meter unit on the same power line shall not exceed the accuracy of the whole. 5.7.2 Inter-phase influence
For single-phase meters in the two-phase and three-phase line system, the single-phase power supply is adopted as the three-phase input terminal. 15.5.7.3 The influence of phase failure
on single-phase meters with the same load-in line mode, when one or two phases in the supply line are broken, the power supply error should not exceed the accuracy level of 15: 5.8 The indication error
output to the annual meter box output pulse net value special meter change display cumulative value format 1) Requirements: AE
meter or unit case meter: impulse value:
Fi -.5×10-1:
meter constant, unit is imkw:: only the meter input small unit:! The pulse can be thousands, the meter product display value,
《The meter meter display decimal places. 59 Three average life
Multi-user electric energy is installed and used under the specified conditions, among which the average life (MTIF: not more than 1 year: the corresponding average life limit E station is not less than 2190.
6 Test method
In addition to complying with the provisions of G/172152+5, station tests should also be carried out. 6.1 Test conditions
JB/r10451-2004
Except for the relevant clauses not specified, all tests should be carried out in the participating 6.2 Mechanical requirements test
GB/T17215-2002 5.2 heat. Check the housing, socket, terminal cover, etc. should be clean and tidy. There should be no scratches and burrs. The product should meet the requirements of 8.1.
6.3 Air impact test
6.3.1~6.3.4 should meet the requirements of GB/T [7215-2002 5.3.15.3.4. 6.3.5 Electronic display test
On the reference voltage, place the meter in a temperature environment of 55℃, differential of 0℃~+2℃ (indoor meter) or 70℃, differential of 0-+2℃ (outdoor meter), and then visually check the display status of the electronic display. Under the reference voltage, place the meter in a temperature environment of -25℃, differential of -3℃~0℃ (indoor meter) or 4℃, differential of 3℃~ (outdoor meter), and then visually check the display status of the electronic display. 6.4 Electrical requirements The test points shall comply with the provisions of 5.4 in GB/T 7215-2002. 6.5 Electromagnetic compatibility test
6.5.1-8.5.8 shall comply with the provisions of 5.5.1~5.5.6 in GB/T 17215-2002. 6.5.7 Surge immunity test
The test shall be carried out in accordance with the provisions of GB/T17626.5 and under the following conditions: : The meter is in working condition:
The reference voltage is passed through the power line and the auxiliary line: There is no current in the current line and the current terminals are tightly open: b) The cable length between the surge generator and the meter: Im Differential mode (line-to-line) test:
Mountain: Test voltage at the station on the electromechanical connecting line of the current line (main line: 4kV: Generator power supply network impedance: 242:
Center: Test voltage on the auxiliary load line with a reference voltage exceeding 40V: IkV, generator power supply impedance: 4201
) Number of tests; 5 times for positive polarity and 5 times for negative polarity! Repeated construction: Maximum min.
Surge withstand test package does not make the meter produce more than xkw, h changes and the test results do not produce a signal of equal measurement unit, the relevant value is calculated by formula (2): =10m0m
The number of measuring elements in a single meter
The ratio voltage, unit is:
The maximum current, unit is 4
In the test, the functional performance is not allowed to be reduced or lost for a short time, but It can recover by itself, and the change of the meter meets the requirements of the upper limit.
B.6 Accuracy requirement test
6.6.1~6.6.7 meet the requirements of 5.6.1-5.6.7 in CBT17215-2002. 6.6.B Inter-household dynamic response test
In the test, the power line to the measured unit is open, and the power line to the adjacent unit is cut off: the battery metering unit current line is added: the power line is added with 15% of the reference Test time for voltage 6 lighter than 3: 14
For level table:
For level 2 table:
k-only table number, annual position is imp/kwh
River world number
-reference voltage, single fire
Maximum current, unit is A
600x106
kmU,/mex
480×10k
ksuaax||tt| |During the test, the output pulse of Xie Mi should not be more than 1 6.7 Special influence quantity test
6.7.: Household influence
.JB/T10451-2004
The measured single ECG circuit is added with a comparison current, and the current line is added with a reference current, 1.0 time points: a, the current line of the adjacent temperature measuring unit will be added with ma, and the current lines of the local metering units are all added, and the new three lines are added with a comparison current to determine the error value
U! When there is no current in the current line and no voltage in the voltage line, the error value of the meter should be determined. The difference between the two error values should not exceed 1/5 of the meter accuracy level. 6.7.2 Phase-to-phase color: only applicable to single-phase meters) For single-phase meters with three-phase input lines, add a reference to the power line of the unit, add the whole current to the current line, and measure the error value: b: Use the same phase voltage to apply 1 phase voltage line to the meter, and get the identified difference. The difference value should not exceed the accuracy level of this meter. 6.7.3 Phase failure response is only applicable to single-phase meters) For: · Single-phase meters with line-in-line connection method, power supply is according to three-phase four-wire connection method, select the metering unit to be connected, add the reference current of the line, and the voltage line of the metering unit is zero-ratio voltage, and the current line is added with reference current (-1.0). Measure its error value 2, and when the voltage line where the metering unit is located is powered by the same circuit and other metering units are only applied with reference current, the difference between the two readings should be within the specified range of 156.8 Indication difference test
Only the voltage line of the meter is added with zero-ratio voltage. If the current line develops large current, when the power supply is 1, operate for 24 hours, the indication error of the instrument shall comply with the provisions of 5.8:
6.9 Reliability verification test
The integrity test shall be carried out according to the method specified in 500?0. 7 Inspection rules
The inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified products in inspection
The unqualified products in the inspection are divided into three categories: A, B and C: A is the qualified category, the weight of unqualified product is 0.6, the weight of unqualified product is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please see Appendix A. If an inspection item occurs once or more than once a month, it will be regarded as a unqualified product.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,7 Surge immunity test
The test shall be carried out in accordance with the provisions of GB/T17626.5 and under the following conditions: : The meter is in working condition:
The reference voltage is applied to the power lines and auxiliary lines: There is no current in the current line and the current terminals are tightly open: b) The cable length between the surge generator and the meter is: Im; Differential mode (line-to-line) test:
: At the station on the electromechanical connecting line of the current line (main line: 4kV: Generator power supply impedance: 242:
: Test voltage on the auxiliary load line where the reference voltage exceeds 40V: IkV, generator power supply impedance: 4201
) Number of tests; 5 times for positive polarity and 5 times for negative polarity! Repeated construction: Maximum min.
Surge withstand test package does not make the meter produce more than xkw, h changes and the test results do not produce a signal of equal measurement unit, the relevant value is calculated by formula (2): =10m0m
The number of measuring elements in a single meter
The ratio voltage, unit is:
The maximum current, unit is 4
In the test, the functional performance is not allowed to be reduced or lost for a short time, but It can recover by itself, and the change of the meter meets the requirements of the upper limit.
B.6 Accuracy requirement test
6.6.1~6.6.7 meet the requirements of 5.6.1-5.6.7 in CBT17215-2002. 6.6.B Inter-household dynamic response test
In the test, the power line to the measured unit is open, and the power line to the adjacent unit is cut off: the battery metering unit current line is added: the power line is added with 15% of the reference Test time for voltage 6 lighter than 3: 14
For level table:
For level 2 table:
k-only table number, annual position is imp/kwh
River world number
-reference voltage, single fire
Maximum current, unit is A
600x106
kmU,/mex
480×10k
ksuaax||tt| |During the test, the output pulse of Xie Mi should not be more than 1 6.7 Special influence quantity test
6.7.: Household influence
.JB/T10451-2004
The measured single ECG circuit is added with a comparison current, and the current line is added with a reference current, 1.0 time points: a, the current line of the adjacent temperature measuring unit will be added with ma, and the current lines of the local metering units are all added, and the new three lines are added with a comparison current to determine the error value
U! When there is no current in the current line and no voltage in the voltage line, the error value of the meter should be determined. The difference between the two error values should not exceed 1/5 of the meter accuracy level. 6.7.2 Phase-to-phase color: only applicable to single-phase meters) For single-phase meters with three-phase input lines, add a reference to the power line of the unit, add the whole current to the current line, and measure the error value: b: Use the same phase voltage to apply 1 phase voltage line to the meter, and get the identified difference. The difference value should not exceed the accuracy level of this meter. 6.7.3 Phase failure response is only applicable to single-phase meters) For: · Single-phase meters with line-in-line connection method, power supply is according to three-phase four-wire connection method, select the metering unit to be connected, add the reference current of the line, and the voltage line of the metering unit is zero-ratio voltage, and the current line is added with reference current (-1.0). Measure its error value 2, and when the voltage line where the metering unit is located is powered by the same circuit and other metering units are only applied with reference current, the difference between the two readings should be within the specified range of 156.8 Indication difference test
Only the voltage line of the meter is added with zero-ratio voltage. If the current line develops large current, when the power supply is 1, operate for 24 hours, the indication error of the instrument shall comply with the provisions of 5.8:
6.9 Reliability verification test
The integrity test shall be carried out according to the method specified in 500?0. 7 Inspection rules
The inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified products in inspection
The unqualified products in the inspection are divided into three categories: A, B and C: A is the qualified category, the weight of unqualified product is 0.6, the weight of unqualified product is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please see Appendix A. If an inspection item occurs once or more than once a month, it will be regarded as a unqualified product.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,7 Surge immunity test
The test shall be carried out in accordance with the provisions of GB/T17626.5 and under the following conditions: : The meter is in working condition:
The reference voltage is applied to the power lines and auxiliary lines: There is no current in the current line and the current terminals are tightly open: b) The cable length between the surge generator and the meter is: Im; Differential mode (line-to-line) test:
: At the station on the electromechanical connecting line of the current line (main line: 4kV: Generator power supply impedance: 242:
: Test voltage on the auxiliary load line where the reference voltage exceeds 40V: IkV, generator power supply impedance: 4201
) Number of tests; 5 times for positive polarity and 5 times for negative polarity! Repeated construction: Maximum min.
Surge withstand test package does not make the meter produce more than xkw, h changes and the test results do not produce a signal of equal measurement unit, the relevant value is calculated by formula (2): =10m0m
The number of measuring elements in a single meter
The ratio voltage, unit is:
The maximum current, unit is 4
In the test, the functional performance is not allowed to be reduced or lost for a short time, but It can recover by itself, and the change of the meter meets the requirements of the upper limit.
B.6 Accuracy requirement test
6.6.1~6.6.7 meet the requirements of 5.6.1-5.6.7 in CBT17215-2002. 6.6.B Inter-household dynamic response test
In the test, the power line to the measured unit is open, and the power line to the adjacent unit is cut off: the battery metering unit current line is added: the power line is added with 15% of the reference Test time for voltage 6 lighter than 3: 14
For level table:
For level 2 table:
k-only table number, annual position is imp/kwh
River world number
-reference voltage, single fire
Maximum current, unit is A
600x106
kmU,/mex
480×10k
ksuaax||tt| |During the test, the output pulse of Xie Mi should not be more than 1 6.7 Special influence quantity test
6.7.: Household influence
.JB/T10451-2004
The measured single ECG circuit is added with a comparison current, and the current line is added with a reference current, 1.0 time points: a, the current line of the adjacent temperature measuring unit will be added with ma, and the current lines of the local metering units are all added, and the new three lines are added with a comparison current to determine the error value
U! When there is no current in the current line and no voltage in the voltage line, the error value of the meter should be determined. The difference between the two error values should not exceed 1/5 of the meter accuracy level. 6.7.2 Phase-to-phase color: only applicable to single-phase meters) For single-phase meters with three-phase input lines, add a reference to the power line of the unit, add the whole current to the current line, and measure the error value: b: Use the same phase voltage to apply 1 phase voltage line to the meter, and get the identified difference. The difference value should not exceed the accuracy level of this meter. 6.7.3 Phase failure response is only applicable to single-phase meters) For: · Single-phase meters with line-in-line connection method, power supply is according to three-phase four-wire connection method, select the metering unit to be connected, add the reference current of the line, and the voltage line of the metering unit is zero-ratio voltage, and the current line is added with reference current (-1.0). Measure its error value 2, and when the voltage line where the metering unit is located is powered by the same circuit and other metering units are only applied with reference current, the difference between the two readings should be within the specified range of 156.8 Indication difference test
Only the voltage line of the meter is added with zero-ratio voltage. If the current line develops large current, when the power supply is 1, operate for 24 hours, the indication error of the instrument shall comply with the provisions of 5.8:
6.9 Reliability verification test
The integrity test shall be carried out according to the method specified in 500?0. 7 Inspection rules
The inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified products in inspection
The unqualified products in the inspection are divided into three categories: A, B and C: A is the qualified category, the weight of unqualified product is 0.6, the weight of unqualified product is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please see Appendix A. If an inspection item occurs once or more than once a month, it will be regarded as a unqualified product.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,7 Width meets the requirements of 5.6.1-5.6.7 in CBT17215-2002 6.6.B Inter-household dynamic response test
test, the power line to the tested unit is open, and the power line to the adjacent unit is connected to the metering unit current line: the power line is added with a reference voltage of 15°C 6
light test time 3: 14
for level 1 meter:
for level 2 meter:
k- only the number of nodes, the annual position is imp/kwh
the number of items
-reference voltage, single fire
maximum current, the unit is A|| tt||600x106
kmU,/mex
480×10k
ksuaax
In the test, the number of pulses emitted by Xie Mi should not be more than 1.6.7 Special influence quantity test
6.7.: Household shadow
.JB/T10451-2004
The measured meter's single ECG circuit is added with a comparison current, and the reference current is added to the flow line, one is 1.0 hours: a, the current line of the adjacent temperature meter unit will be added with ma, and the current lines of the local metering units are all added, and the new three lines are added with a comparison current to determine the error value
U! When there is no current in the current line and no voltage in the voltage line, the error value of the meter should be determined. The difference between the two error values should not exceed 1/5 of the meter accuracy level. 6.7.2 Phase-to-phase color: only applicable to single-phase meters) For single-phase meters with three-phase input lines, add a reference to the power line of the unit, add the whole current to the current line, and measure the error value: b: Use the same phase voltage to apply 1 phase voltage line to the meter, and get the identified difference. The difference value should not exceed the accuracy level of this meter. 6.7.3 Phase failure response is only applicable to single-phase meters) For: · Single-phase meters with line-in-line connection method, power supply is according to three-phase four-wire connection method, select the metering unit to be connected, add the reference current of the line, and the voltage line of the metering unit is zero-ratio voltage, and the current line is added with reference current (-1.0). Measure its error value 2, and when the voltage line where the metering unit is located is powered by the same circuit and other metering units are only applied with reference current, the difference between the two readings should be within the specified range of 156.8 Indication difference test
Only the voltage line of the meter is added with zero-ratio voltage. If the current line develops large current, when the power supply is 1, operate for 24 hours, the indication error of the instrument shall comply with the provisions of 5.8:
6.9 Reliability verification test
The integrity test shall be carried out according to the method specified in 500?0. 7 Inspection rules
The inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified products in inspection
The unqualified products in the inspection are divided into three categories: A, B and C: A is the qualified category, the weight of unqualified product is 0.6, the weight of unqualified product is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please see Appendix A. If an inspection item occurs once or more than once a month, it will be regarded as a unqualified product.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,7 Width meets the requirements of 5.6.1-5.6.7 in CBT17215-2002 6.6.B Inter-household dynamic response test
test, the power line to the tested unit is open, and the power line to the adjacent unit is connected to the metering unit current line: the power line is added with a reference voltage of 15°C 6
light test time 3: 14
for level 1 meter:
for level 2 meter:
k- only the number of nodes, the annual position is imp/kwh
the number of items
-reference voltage, single fire
maximum current, the unit is A|| tt||600x106
kmU,/mex
480×10k
ksuaax
In the test, the number of pulses emitted by Xie Mi should not be more than 1.6.7 Special influence quantity test
6.7.: Household shadow
.JB/T10451-2004
The measured meter's single ECG circuit is added with a comparison current, and the reference current is added to the flow line, one is 1.0 hours: a, the current line of the adjacent temperature meter unit will be added with ma, and the current lines of the local metering units are all added, and the new three lines are added with a comparison current to determine the error value
U! When there is no current in the current line and no voltage in the voltage line, the error value of the meter should be determined. The difference between the two error values should not exceed 1/5 of the meter accuracy level. 6.7.2 Phase-to-phase color: only applicable to single-phase meters) For single-phase meters with three-phase input lines, add a reference to the power line of the unit, add the whole current to the current line, and measure the error value: b: Use the same phase voltage to apply 1 phase voltage line to the meter, and get the identified difference. The difference value should not exceed the accuracy level of this meter. 6.7.3 Phase failure response is only applicable to single-phase meters) For: · Single-phase meters with line-in-line connection method, power supply is according to three-phase four-wire connection method, select the metering unit to be connected, add the reference current of the line, and the voltage line of the metering unit is zero-ratio voltage, and the current line is added with reference current (-1.0). Measure its error value 2, and when the voltage line where the metering unit is located is powered by the same circuit and other metering units are only applied with reference current, the difference between the two readings should be within the specified range of 156.8 Indication difference test
Only the voltage line of the meter is added with zero-ratio voltage. If the current line develops large current, when the power supply is 1, operate for 24 hours, the indication error of the instrument shall comply with the provisions of 5.8:
6.9 Reliability verification test
The integrity test shall be carried out according to the method specified in 500?0. 7 Inspection rules
The inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified products in inspection
The unqualified products in the inspection are divided into three categories: A, B and C: A is the qualified category, the weight of unqualified product is 0.6, the weight of unqualified product is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please see Appendix A. If an inspection item occurs once or more than once a month, it will be regarded as a unqualified product.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,9 Reliability verification test
And the integrity test shall be carried out according to the method specified in Beijing 500-0. 7 Inspection rules
The small inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified in inspection
The unqualified in the inspection is divided into three categories: A, B and C: A is the qualified value, the unqualified weight is 0.6, and the unqualified weight is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please refer to Appendix A. If the individual inspection items occur once or more than once in a month, they will be regarded as unqualified.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify and the use of the equal sign shall comply with the provisions of GB1744]. The instrument has the following signs:
#: Name Model:
: Name Model 4 Original by the country, etc., some management, pre-change,9 Reliability verification test
And the integrity test shall be carried out according to the method specified in Beijing 500-0. 7 Inspection rules
The small inspection is divided into factory inspection, acceptance inspection and type inspection. 7.1 Classification of unqualified in inspection
The unqualified in the inspection is divided into three categories: A, B and C: A is the qualified value, the unqualified weight is 0.6, and the unqualified weight is 0.2.
IB/I 10451---2004
For the classification of small qualified categories of inspection items, please refer to Appendix A. If the individual inspection items occur once or more than once in a month, they will be regarded as unqualified.
7.2 Factory inspection
The quality inspection department of the manufacturer shall inspect all the measurement units of each product according to the requirements: the instruments that have passed the inspection shall be sealed and issued with a quality inspection certificate.7.3 Acceptance inspection
The relevant parties shall coordinate with the relevant testing institutions to conduct 1% quality inspection or control method on the whole product. The acceptance shall be carried out according to the sampling plan of the meter samples. The following methods can be used: The total number of units in the meter sample is the measurement unit. Each meter consists of 3 measurement units. According to the provisions of GBT15239, the total number of units is 32, and the number of measurement units to be tested is determined. According to the determined number of measurement units, the number of units is randomly selected from the 4 units. At least 2 measurement units are taken for each meter.7.4 Type inspection
Unless otherwise specified in the relevant clauses, all tests shall be carried out under the conditions of the plan. Appendix A gives the inferred test sequence. After type inspection, if the adjustment made to the instrument affects some of the performance of the instrument, it is necessary to conduct limited risk testing on the affected parts. Type inspection or testing should be carried out for the following situations: a! New product design and adjustment:
: When there are changes in the structure of the instrument, technology or materials that may affect the compliance of the materials with this standard and the technical requirements of the product; one year after the production of the instrument, when the new product is produced, and the test results are significantly different from the previous model inspection, the national quality supervision agency shall propose the requirement to conduct type inspection: once a year during normal production or after a certain amount of production has been accumulated, 7.4.1 Type inspection reporting plan
: GB/T2R29 specifies sampling as the plan, and the word selection is: unqualified quality level RQ. 403. For the first random sampling, (r, Re)=
a single sample is set.
7.4.2 Determination of test results
If any product is found to be unqualified in the inspection, and the other categories are not qualified, it shall be counted as 4 categories of unqualified products. If the number of samples taken is ten or more, they shall be judged as qualified products.
Except for those who have not been informed, all the unqualified products that appear in the sample inspection shall be counted one by one. According to the number of samples or unqualified samples, the number of qualified samples shall be determined according to the sampling plan. The number of samples shall be determined according to the number of qualified samples in the sampling plan. 8.1. Labels
The text used for marking the product mark shall be in standard Chinese. The language with pronunciation or foreign language may be used. The language with foreign language at the beginning of the label shall be reduced! The original language, the number and the language shall not be less than: the height of the original text shall not be less than: the production station shall be easy to identify
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