Some standard content:
All the contents of this standard are mandatory. Foreword
CB156-2003
The standard is 15600381985215 and its second revision in 1994: 1957: English version), and the degree of consistency is non-equivalent. IEC: 50048 is a special basic standard. It provides a series of standards based on 50 and 62 under the standard voltage system of different countries and integrates the basic voltage of the series in each series. Voltage level: Countries can choose the basic voltage of the standard voltage system and the current series according to their own conditions, and adopt H-H as the standard voltage series. Most of the international standard voltage levels specified in this standard are different from [13], and there are large differences in individual voltage levels. The main differences are as follows: Introduction
According to China's actual situation, the IEC standard voltage 230/40V and 400/60V are changed to 20/390V and 58:650V respectively. At the same time, the voltage used in my country is added (see Table 1). In view of the fact that my country has a special supply and demand standard GBT12325), the technical safety requirements of production and sales, so the voltage of IEC60USX is removed.
According to China's actual situation, the IEC standard voltage 123kV.24>k is increased to 136kV.22k respectively (see Table 4); - I added three items of nominal system voltage (36kV, 100kV, 100kV, etc. (see Table 5)...· The standard ratio of the rated voltage of the power generation tower is used in China (see table). This standard replaces GB1>6-1493 standard. The changes with GB/039-1998 are as follows:
According to GB/ 1.1 The tower has added 7 codes (3.1.3.2.2, 3.3, 3.4, 5., 3.6 and 3.7) and 2 codes (3.1, 3.2, etc.) for 5156 [993 households; 3.1 and 3.2 are added in accordance with IFCM8. Table 2 of G-1903 is respectively compiled into Table 3, Table 4 and Table 5, so as to ensure the consistency of the structure with the national standard. At the same time, the 123kV and 2kV voltages that are no longer used in China are removed. The voltages are relatively large! 1C0038 adds the part of the exchange and direct source rate induction system For the nominal output voltage of AC low voltage, the AC voltage is limited to 1V and the self-driving voltage is limited to 750V according to IEC.60138. In this voltage range, 6 numbers of DC voltages such as 1.2V, 1.5V, 2.13V, 40V are deleted. 7 international low voltages such as 125V, 7.5V, 40V, 13V, 125V, 250V and 600V are added. The AC standard voltages beyond the limited range are provided in the form of information. All standard medium voltages specified in IEC.60138 are provided to meet the requirements of the medical version of the standard, and the comparison with the national standard is required. This standard is documented as follows:
This standard is issued by the National Technical Supervision Commission under the jurisdiction of the National Technical Standardization Committee. Standard responsible for: Mechanical Science Research Institute, State Radio and Television University, China Electric Power Research Institute, Harbin Electric Power Research Institute, China Coal Mine Equipment Research Center, Network Design Research Institute, and State Electric Power Administration. The main drafters of this standard are Shi Shilin, Xi Ting, Dian Dongbai, Liu Yahao, Fu Lixin, Jin Zhaomin, Dong Yun, Zhou Maolan: The technical standard is: 13156-80G-19931 Standard voltage This standard is used for standard voltage GB156-2003 International nominal voltage 100V, marked frequency 50IT, power generation, transmission, distribution and self-use systems and their equipment: AC and DC commercial systems; nominal voltage must be less than 120V or less than 750V (the AC voltage of the equipment is EGH but not exclusive). This equipment includes batteries (original or battery), and its specifications or related equipment include industrial and electrical power sources and equipment! And instruments.
This standard does not indicate active signals, transmission signals and measured voltages. This standard is applicable to components used in gas-fired equipment, and the zero voltage of the components is the standard voltage. [X6038] The standard output voltage is shown in Figure A, for example: the standard output voltage of the components is the same as the standard voltage, and the positive voltage is invalid. The two bands of sinusoidal wave fish do not exceed ten percent of the day's special root straight hundred interpretation is no technology"
2 Standard pool cited documents
The following documents have become the terms of this standard through the use of the type standard, which is the referenced document of the period. All subsequent policies (excluding the content of the error) or revisions may not apply to this standard. However, the parties to the agreement reached according to the standard shall consider whether the latest version of these documents can be used. The latest version of the referenced document shall apply to this standard. 1402 Soft reverse power system (1402-199E010
G3/T12825 Power quality/charge tolerance 3 Terms and definitions
The following terms and meanings are applicable to this standard. 3.1
numeral system yaltage
Standard system voltage
The voltage selected by the system design,
The system high and low voltage (except for abnormal conditions) highestandlowestroltagesurfasystem (ercludingInuisienlurbaurnialBunditiens3.2. 1
The system safety high voltage highslvullareofasyklen is the voltage that occurs at any point in the system when the system is running under normal conditions. It does not include the voltage limit, such as the voltage value caused by the parallel operation of the system and the transient current flow: 3. 2. 2
The lowest voltage of the system is the lowest voltage at any point in the system under the condition of operation. The space does not include the value of the power supply caused by the operation of the system and the self-generated passive state. 3.3
Supply terminal supplylerminals
GB156—2003
The connection point between the power distribution system of the power supply department and the user's electrical system. 3. 4
Supply voltage sipplyvoltage
The voltage at the output terminal relative to the neutral conductor. 3.5
Supply voltage range smallvoltagegeraige The voltage at the output terminal.
Utilizalionvojtage
Utility voltage
The voltage at the terminals of an unequipped power outlet or radiated to the opposite and/or opposite neutral conductors. 3.7
Utilization voltage range UtilizattunvoliageTange The voltage range at the terminals of an unequipped power outlet: 3. 8
(The rated voltage of the equipment is determined by the manufacturer and is used to regulate the normal output of components and devices under normal working conditions. 3.9
Highest voltageForequipmentThe highest voltage of the equipment is used to indicate:) Range:
1) This highest voltage is recommended for the equipment to be used as the "maximum system voltage" (3.2.1) for the equipment to be used. Note: The equipment takes the nominal system voltage of 1uU as the reference voltage. For these nominal system voltages, it is not guaranteed to maintain the voltage on the battery: Such as the production of light equipment, transformer and other equipment. Only under this maximum voltage can it be normally operated. In this case, the relevant standards in the city can determine the limitations of the equipment. Of course, for the selected system of more than 1nmn√, the continuous research and development of the allowed points of the equipment only refers to the above work and the actual quality improvement. The charging and installation of multiple standards and bags are similar to the use of the first minute of the power transmission end. The full power supply terminal requires the G61.1 voltage transformer without absolute training and coordination. >> Guard \ Electric Music \ No language has different meanings, 4 standard voltage
4.1~4.6 shrinkage day system and equipment standard power estimation, the power supply self-voltage difference needs to be certified 3112325, 4.1220V~..00VV between the nominal voltage table of the system and the relevant equipment! ) Table 1220V～0V AC system and related equipment rated voltage three-push or three-phase natural gas system rated voltage /22u:580
33n:hen
11140)
She: 11 times in the night of the smelting mine down Sichuan.
A four-wire or three-phase one-line AC system and related equipment in Table 1, including single-phase circuits connected to these systems, the lower value in the table is the relative neutral conductor voltage, the lower corresponding value is the relative phase voltage: only the number refers to the cabinet sweep voltage of the three-phase line system. 3
4.2 Nominal positive output of AC and traction systems (Table 2) Table 2 Nominal voltage of AC and DC traction systems Maximum positive voltage of the system/V
DC system
Alternating single-phase system selection
Nominal positive voltage of the system V
Let, the round protection number is from the beginning: the best advice, the new system will not come to Sichuan in this world. GD156-2003
System voltage
27 500
The values in Table 2 are all approved by the International Joint Project Committee on Power Equipment (CM, T) and the 1HC/TCS Electrical Power Equipment Technical Committee.
The requirements for the annual AC voltage of the Anhui line are shown in B124.31kV to 33kV AC three-phase system and related equipment nominal voltage (see Table 3) Table 31k to 35kV AC three-phase power system and related equipment nominal voltage investment company
Note 1: The effective value in brackets is Sichuan Note 2: The first two groups in the table are effective for the power distribution system of Foshan T Public, nominal system voltage / k | | tt | | Position 3: The following table is suitable for Sichuan thirteen-phase three-phase power distribution system, and the last group is suitable for the western line system, 35kV to 220kV AC three-phase system and related equipment nominal voltage (see Table 4) 4.4 | | tt | | Table 4 35kV to 22kV AC three-phase system and related equipment nominal voltage equipment maximum commercial scale / k | | tt | | 4.52V AC one-phase System and related equipment ratings: (see table) Rated voltage of AC three-phase system and related equipment above 45tV/kv
Rated voltage of equipment High voltage equipment·kv
Rated system voltage H/hV
L:B1562003
4. Rated voltage of equipment with AC lower than 120V or true lower than 750V See table 61 Table 6 Rated voltage of equipment with AC lower than 120V or DC lower than 750V (E.
Station-related load| |tt||Submersible supplement five
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Note: Because the original battery and the lack of positive lift are lower than 2.41. And H is the characteristic of the reverse type of electricity, not the history of electricity. This voltage card is included in it. For special current, his type and rated voltage will be stipulated by the relevant technical too. 4, the rated voltage of the generator with other frequency and rated voltage [good life "Table 7 High-voltage alternator rated voltage of the generator K: V
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battery motor rating
Note: The rated voltage of the electrical equipment at the motor output terminal can be adopted from the rated voltage of the AC motor. The rated voltage of the motor should be determined according to the product standard A
(scientific appendix)
IEC60C3B standard voltage
GB156--2003
Table A.1 shows the three-phase four-wire and three-phase three-wire systems, and the single-scan circuits (extended, auxiliary, etc.) in these systems are listed in Table A.1. The lower value of the first conductor is relative to the second conductor, and the value of the voltage is relative to the phase. Only the voltage of the three-wire system is referred to. The lower value in the calculation column refers to the voltage of the inner and outer conductors, and the higher value does not represent the voltage of the phase.
The voltage exceeding 2.m/400V is only suitable for heavy industrial applications. The standard voltage of the AC system and its related equipment between 1100V and 100 is 2-phase two-wire system
Special power generation: V
5c: EIx
40m/59n
120/23
277/5:
Single-phase three-wire system
Nominal power/l/V
:20/245
Using 222:38 to 2421V standard voltage ratio, the recommended voltage should be gradually increased by 2.10/4001, and the recommended voltage should be limited to no more than 200 3. During this period, as the first city, the Beijing Power Supply Department, which uses 203%0V system, has been connected to 2.3040 and other places. The 15-year capacity of the 25/115 system is 230,400V. The 4-year capacity is 11,600V. In addition, the 330/400 frequency has been achieved during the government period. After that, we should focus on reducing the core voltage. All of the above benefits are also in Sichuan's 353/600/690V standard. About the standard use of the heart, in the normal operation of the recording device under the discharge with the receiving system voltage polarization inspection should not be too much than the three-heart-related power use of the city, in addition to the voltage difference at the end of the power response, the wide range of electrical equipment will also appear heart drop, for low-voltage devices and the electric music Chen Jing limit to 4%. The power voltage is also 10% to 11%. This standard should meet the requirements of the National Product Committee. When the system is installed, the sub-examples of this standard are listed, the AC and DC system is introduced, the AC system information is high, 1E2 GB156-2003 and the single system 12 0ne Le uen A.2 (phosphorus) after the power V 2r suy
delivery and case lack fixed remuneration/chuan
w or 50
53 yuan 5
created Zhongshan product non-excellent this number: the new market building high-energy system does not use some numbers but, special number for ten delivery single no system, only can not be called the above table of teaching average gas design surface of the state stock will be more C. and C/C electrical equipment to be approved by the company,
b enterprise UK Europe package customers, consulting a positive method to 40, in the same country of oxygen electrical equipment, gram index in 5n the same adjustment time to withstand this highest giant,|| tt||A.3 shows two series of high voltage, one is H2 and 6H2 series 1) the other is H system (series II for use in North America. Only one of the commercial systems is used in any country. Only the system can be used. Table A.31k to 35kV AC three-way system and its related equipment nominal voltage ratio system voltage and true voltage/
nominal system voltage ratio: k
equipment maximum voltage v
2,11
! : Any country's two equal nominal voltages should not be less than 2 T
Gate single current power industry? V
letter 2: Series 1's positive voltage is not the same as the nominal voltage, and the nominal voltage cannot be greater than 0.5. In addition to the deviation of the system center, the voltage of the system can not be greater than the standard voltage. It is not reliable, unless otherwise specified. This system requires a certain number of characteristics, and the voltage given is only the relative voltage, which is the voltage in the return number. In the future, this new type of technology will not be adopted. This type of technology will not be used in the public power distribution system. This system is usually a relative mountain line system. These countries have limited conditions. In the professional system, the two international system series are given. The reverse position of the country should be selected according to the country's purchase of the series. The original equipment should be used in the teaching position and the single voltage: 123 lV.-+4: kv
215300k more Table.5.-G3k Table A.
Table A 435 kV to 23) tV AC three-phase system and its related equipment nominal voltage virtual telephone member commercial ik/k
Standard system
GB156-2303
Numbers given in the group store are non-estimates. This effective value is used in the construction of new systems. The value of the phase voltage
Construction area only selects one of the following numbers as the high output voltage of this equipment, 245 kV (see Table A, 1) -500 kV--312 kV: 362 kV-.2uVf
420kV~325.
Table A,Equipment rate high voltage share of AC three-phase system above 5245 kV: V
［2uu
Note, in this document, "high voltage" also refers to a single country or a group of countries or a part of a country with the same weight. If the voltage is given in brackets, the common position given in the brackets above is not particularly suitable for new construction of torsion systems. These models are not recommended. 525 effective values include the use of "733Y pan-effective test position of the equipment, the base scale TE is the same as that specified in US 755, and the 11100kV transmission level value is also used. "The use of 1, all scales use 800! 00 numbers, Table A. 6 AC less than 120 V or DC less than 750 equipment nominal voltage standard low C
Institute selected
Based on this
standard (A,
GH 15620c3
Your value DC
Increase Pu disease
Install A.6 (energy)
Shock test low
ground blood
-: Because the voltage of the original power and battery is low! .V. And stop using the technology to select the twisting power sign of the plastic slip certificate does not hold the power music. Flash heart this is the package as shown in the table. An Techuan's year and standard of the power by the limit heart pad technology season is, 2: should be recognized, out! Chemical analysis of the main reasons for the whole system, for the implementation of the special technology should be combined with its, may need to find outside funds.
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