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People's Republic of China (PRC) national standard
GB/T 156-2007
Replace GB 156-2003.
Mark; Charged voltage
Standard voltage
(IEC 60038:2002, IEC standard voltage, MOD)
Promulgated on April 30, 2007 and implemented on March 30, 2008.
Director of People's Republic of China (PRC) State Bureau of Quality Supervision and Inspection.
China National Standardization Administration Committee
question
GB/T 156-2007
catalogue
order ...............................................................................................................................................................................
1 range 1.
2 normative reference documents .............................................................................................................................................................................
3 terms and definitions 1.
4. Standard voltage ...........................................................................................................................................................................
4.65438 +0 standard voltage of AC system and related equipment with nominal voltage between 220V ~ 1000V. ................................................................................................................................................
4.2 Standard voltage of AC and DC traction system
4.3 The nominal voltage is higher than the standard voltage of AC three-phase system and related equipment from 1 kV to 35 kV.
4.4 The nominal voltage is higher than the standard voltage of AC three-phase system and related equipment from 35kV to 220kV.
4.5 Standard voltage of AC three-phase system and related equipment with nominal voltage higher than 220 kV.
4.6 Nominal voltage of HVDC transmission system ........................................................................................................................................................................
4.7 Rated voltage of equipment with AC below 120 V or DC below 750 V 4
4.8 Rated voltage of generator 5
Appendix A (Information Appendix) Lee Standard Voltage
I
GB/T 156-2007
front
The revision of this standard adopted ? c60038 2002: IEC standard voltage machine lEC 60038 is a special basic standard, which is used in
On the premise of emphasizing the standard voltage system of various countries, two standard voltage series with 50 Hz and 60 Hz as basic parameters are provided through negotiation, and
In each series, the basic voltage level of the series is provided comprehensively. Countries can choose standard voltage series and standard voltage series according to their own conditions.
Basic voltage level of series. China has always adopted the standard voltage series of 50 Hz-the main differences between this standard and lEC 60038 are as follows.
I → the preface of lEC was deleted,
1 1. The normative reference document of Chapter 2 was added, and the original lEC Parts 2 and 3 became Chapters 3 and 4 of this standard respectively.
According to the actual situation in China, the IEC standard voltages of 230/400 V and 400/690 V were revised to 220/380 V and 380/660 V respectively.
At that time, 1 140 V used by some domestic industries was added (see table1);
In view of the special allowable deviation standard of power supply voltage in China (GB/T 12325) and stricter technical requirements, it is deleted.
LEC 60038 g voltage range specification
Only one set of values is reserved for the AC part of the nominal voltage of the traction system (see Table 2);
According to the actual situation in China, the nominal voltages of four grade systems (330 kV, 500 kV, 750 kV, 1000 kV) are supplemented (see Table 5).
According to the actual situation in China, the rated voltage of HVDC transmission system has been improved (see Table 6).
1 1. According to the actual situation in China, two rated voltages (1. 2V and 1. 5V) DC part (see table 7).
According to the actual situation in China, the rated voltage of the generator has been increased (see Table 8).
This standard replaces GB 156-2003? Standard voltage.
The main differences between this standard and GB 156-2003 are as follows: Z.
This standard is changed to recommended standard;
Remove the original bracket from the system with a nominal voltage of 20 kV (see Table 3);
LEC standard voltage is introduced. Considering the domestic situation, the nominal voltage of the system is 1 10 kV, and the highest voltage of the equipment is 220 kV.
126kV and 252kV were changed to 126 (1 23) KV and 252(245) KV (see Table 4);
1 1. The maximum voltage of the equipment is changed from 1200 kV to the nominal voltage of the UHV test demonstration engineering system and the maximum power of the equipment.
Pressure 1 100 kV (see Table 5);
The nominal voltage of HVDC transmission system is increased by 500 kV and 800 kV one after another (see Table 5
According to the actual situation in China, the two rated voltages are 1. 2V and 1. The voltage of 5V is increased (see Table 7).
LEC standard voltage is provided in the form of informative appendix to meet the needs of users to understand the relevant provisions of international standards and facilitate communication with users.
Comparison of national standards.
Appendix A of this standard is an information appendix.
This standard is put forward and centralized by the National Technical Committee for Standardization of Voltage and Current Grades and Frequencies.
This standard is drafted by Productivity Promotion Center of China National Machinery Corporation, China Electric Power Research Institute, Wuhan High Voltage Research Institute of State Grid and MCC Jingcheng Project.
Harbin Electric Machinery Research Institute, Shanghai Electric Appliance Research Institute Technology Co., Ltd..
The main drafters of this standard are Z Kang Wenxiang, Lin, Zeng Youyun, Fu Lixin, Xun, Ji.
The main drafters of this standard are Xi, Ren Shengde, Jiao Li, Jun Cheng,.
The previous version replaced by this standard is GB156-1980; GB 156- 1993； GB 156-2003，
E
GB/T 156-2007
Standard voltage
1 range
This standard applies to 2
AC transmission, distribution and power consumption systems and their equipment with nominal voltage higher than100V and standard frequency of 50Hz;
1. Equipment with rated voltage lower than 120 V and standard frequency of 50 Hz (but not absolute limit);
Equipment with DC voltage below 750 volts;
AC and DC traction systems;
1 1. HVDC system;
Generator with AC and DC voltage not lower than100 v.
This standard does not apply to voltages representing signals, transmitted signals and measured values.
This standard does not apply to the standard voltage of components, components or equipment parts used in electrical devices.
Note: In this standard, AC voltage is root mean square, and DC voltage is ripple-free DC voltage.
2 normative reference documents
The clauses in the following documents become the clauses of this standard by reference. For dated reference documents, all subsequent documents
The revised list (excluding errata) and revised edition of this standard are not applicable. However, all parties who have reached an agreement based on this standard are encouraged to study this standard.
Whether the latest versions of these files can be used. The latest version of the unnoticed reference file is applicable to this standard.
Gb 311.1-kloc-0/997 insulation coordination of high-voltage power transmission and transformation equipment (neq1ec60071-1993)
GB/T 3 1 12-2002 insulation coordination part 2: guidelines for the use of insulation coordination for high-voltage power transmission and transformation equipment (eqv IEC 6007 1
2: 1996)
GB 1402 AC voltage of railway trunk electric traction (GB 1402? 1998 . eqv IEC 60850: 1988)
GB/T 2900.50- 1998 electrotechnical terminology (neqiec 60050 (601):1985)
GB 4706。 1 Safety of household and similar electrical appliances Part 1 Part 2 General requirements (Gb4706. 1-2005. IEC 60335- 1:
200 1，IDT)
GB/T 12325 allowable deviation of power quality and power supply voltage
3 Terms and definitions
The following terms and definitions apply to this standard.
3. 1
Nominal system voltage
Used to mark or identify a given value of system voltage.
【GB/T 2900。 50- 1998, definition 2. 1.2 1J。
3.2
Maximum and minimum voltages of the system (except transient or abnormal working conditions) Abbreviations of the maximum and minimum voltages of the system (excluding
Transient or abnormal conditions)
3.2. 1
The highest voltage, high field and T voltage of the system.
Under normal operating conditions, the maximum voltage in the system at any time and at any point is limited.
It does not include transient voltage, for example, the voltage value caused by switching operation and transient voltage fluctuation of the system.
1
,
GB/T 156-2007
3.2.2
Minimum voltage and low magnetic field test voltage of Umno system
The lowest voltage at any time and at any point in the system under normal operating conditions.
Instantaneous power is not included, such as the electrical E value due to the switching operation of the cover system and Cao Zhi's voltage plant.
3.3
Ratio of power supply points of power supply terminal
Connection point between power distribution system of power supply department and user's electric range hood system.
3.4
Make specific provisions.
Part 1 Part Z General requirements and
4 quasi-voltage
4. 1-4.8 gives the standard voltage values of different leather and time. See GB/T 12325 for allowable deviation of power supply voltage.
4. 1 hanfei electric IE 220 V-I 000 V, which is the mainstream and equivalent to mainstream IE (see table 1).
Table 1 Static voltage 220V-I 000V E is in V.
Nominal voltage of two-phase capture line or two-phase two-wire system
220/380
380/650
1 000 ( 1 14M
Note: 1 140 V is limited to some industry internal systems.
2
GB/T 156-2007
Table 1 is the nominal voltage of three-phase four-wire or three-phase three-wire AC system and related equipment.
In the table 1, the lower value in the same set of data is the phase voltage, the higher value is the line voltage s, and only one value refers to the three-phase three-wire system.
Unified line voltage.
4.2 Standard voltages of AC and DC traction systems (see Table 2)
Table 2 The standard voltage unit of AC and DC traction systems is Volt (V)
direct current system
System minimum voltage system nominal voltage system maximum voltage
(400) (600) (720)
500 750 900
1000 1500 1 800
2000 3000 3600
Ac single-phase leather series 19000 25000 27500
Note 1, the value given in brackets is not the preferred value. These values are not recommended for future new systems.
Note 2: The values given in the table are obtained by the International Joint Committee on Electric Traction Equipment (C.M.T) and the lE C/TC 9 Technical Committee on Electric Traction Equipment.
Recognition.
Note 3 Other requirements of railway trunk electric traction AC power station and GB 1402.
Note 4: Other professional standards for voltage exchange of AC and DC traction systems.
4.3 Standard voltage of AC three-phase AC system and related equipment with nominal voltage of 1 kV to 35 kV (see Table 3).
Table 3 Standard voltage of AC three-phase system and related equipment with nominal voltage of 1 kV from ground to 35 kV
The unit is kilovolts (kV).
Nominal voltage of equipment maximum voltage system
6224J
120 374
3(3.3)
six
10
20
35
Note 1, the values in the table are line voltages.
Note 2: The values in brackets are used when users need them.
Note 3: The first two groups of values in the table shall not be used in public distribution systems.
4.4 Standard voltage of AC three-split system and related equipment with nominal voltage above 35 kV to 220 kV (see Table 4).
Table 4 Standard voltage of AC three-phase system and related equipment with rated voltage above 35 kV to 220 kV
In kilovolts)
Nominal voltage of equipment maximum voltage system
72.5 66
126 ( 123) 1 10
252(245) 220
Note 1, the values in the table are line voltages.
Note 2: The values in brackets are used when users need them.
three
GD/T 156-2007
4.5 Standard voltage of cross-correlation equipment of mainstream three-phase criminal system with voltage above 220 kV (see Fault 5).
Quasi-voltage of e-related equipment in mainstream three-cap military system with voltage above 220 kV.
The unit is kilovolts (kV).
This equipment is rated voltage of high voltage system.
363
Enyang
550
Note z is lower than the above table.
Eight hundred
1 100
Note: The values in the table are line voltages.
4.6 Z HVDC building electrical military system
The unit is kilovolts (kV).
Step 4: Seven
The unit is volts (V)
Complementary value of preferred value
1.2
1.5
five
six
12 12
15 15
24 24
30
36 36
40 42
48 48
50 50
Seventy two
four
Gravel 156-2007
The unit of quantity 7 (ear) is V.
DC rated voltage AC lead voltage.
Preferred value supplementary value preferred value supplementary value
80
95
100
1 10 1 10
220
Born at 40 years old
The unit is volts (V)
Rated voltage of DC power generation
1 12348
Note 1: Number of electrical equipment matched with generator outlet.
Note 2: The rated voltage of imported units is not limited by regulations.
The rated voltage is specified in the product standard.
five
GB/T 156-2007
Appendix a
Voltage 1il 1l' operation
Value.
Make sure the cover is voltage sensitive.
Settings.
Have different meanings.