|
US$559.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
YD/T 1051-2018: General requirements of power supply system for telecommunication stations/sites
Status: Valid YD/T 1051: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| YD/T 1051-2018 | English | 559 |
Add to Cart
|
5 days [Need to translate]
|
General requirements of power supply system for telecommunication stations/sites
| Valid |
YD/T 1051-2018
|
| YD/T 1051-2010 | English | 999 |
Add to Cart
|
5 days [Need to translate]
|
General requirements of power supply system for telecommunication stations/sites
| Obsolete |
YD/T 1051-2010
|
| YD/T 1051-2000 | English | RFQ |
ASK
|
6 days [Need to translate]
|
General Reqiurements of Power Supply System for Telecommunication Stations/Sites
| Obsolete |
YD/T 1051-2000
|
PDF similar to YD/T 1051-2018
Basic data | Standard ID | YD/T 1051-2018 (YD/T1051-2018) | | Description (Translated English) | General requirements of power supply system for telecommunication stations/sites | | Sector / Industry | Telecommunication Industry Standard (Recommended) | | Classification of Chinese Standard | M41 | | Word Count Estimation | 24,271 | | Date of Issue | 2018-12-21 | | Date of Implementation | 2019-04-01 | | Older Standard (superseded by this standard) | YD/T 1051-2010 | | Regulation (derived from) | Ministry of Industry and Information Technology Announcement No.67 of 2018 | | Issuing agency(ies) | Ministry of Industry and Information Technology | | Summary | This standard specifies the basic principles and requirements of communication power system, including the structure of various communication bureau (station) power system, AC power supply system, DC power supply system, lightning protection grounding, technical performance requirements of main power equipment and power system monitoring. , environmental conditions and other requirements. This standard applies to all types of communication station power systems. | YD/T 1051-2018: General requirements of power supply system for telecommunication stations/sites---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
General requirements of power supply system for telecommunication stations/sites
ICS29.200
M41
Communication Industry Standard of the People's Republic of China
Replace YD/T 1051-2010
General technical requirements for power supply system of communication bureau (station)
2018-12-28 released
2019-04-01 Implementation
Issued by the Ministry of Industry and Information Technology of the People's Republic of China
Table of contents
Foreword...Ⅱ
1 Scope...1
2 Normative references...1
3 General...1
4 Introduction of external electricity...2
5 Power system composition...2
6 Power system types and application principles...2
7 Basic power supply...5
8 AC power supply mode...6
9 DC power supply mode...6
10 Dual hybrid power supply mode...7
11 Power system reliability and equipment reference configuration...7
12 Lightning protection and grounding...11
13 Monitoring...12
14 Main technical performance requirements for power supply equipment...14
15 Environmental requirements...14
Appendix A (informative appendix) Types of power supply systems for data centers and hubs...16
Appendix B (informative appendix)-Conversion of 48V power supply mode to dual hybrid power supply mode...18
Appendix C (Informative Appendix) Mains Reliability Index Statistics...19
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces YD/T 1051-2010 "General Technical Requirements for Communication Bureau (Station) Power System".
Compared with YD/T 1051-2010, the main technical changes of this standard are as follows.
-Deleted ±24V DC power supply system and its basic power supply, DC power supply mode selection, Appendix A main series and technology of power distribution equipment
Requirements (see.2010 edition 5, 7, 9, Appendix A);
-Added 336V DC power supply system, lightning protection isolation transformer, DC remote power supply system commonly used in small stations, and active reactive power
Compensation, 10kV AC basic power supply, 240V and 336V DC basic power supply, battery charging and discharging operation in peak shifting and valley filling operation mode
Mode, dual-channel hybrid power supply mode, high-rate battery configuration principle, shared management equipment for battery packs, isolated floating ground lightning protection mode,
Three monitoring system structures, appendix B -48V power supply mode to dual-channel hybrid power supply mode conversion, appendix C mains reliability index
Statistics (see 5, 6, 7, 9, 10, 11, 12, 13, Appendix A, Appendix B, Appendix C).
Please note that certain contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This standard was proposed and managed by the China Communications Standards Association.
Drafting organizations of this standard. China Telecom Consulting and Design Institute Co., Ltd., China Academy of Information and Communications Technology, China Telecom Corporation, Emerson
Network Energy Co., Ltd., Guangzhou Zhujiang Telecommunications Equipment Manufacturing Co., Ltd., China Mobile Communications Corporation, China Telecom Co., Ltd.,
Beijing Power Source Technology Co., Ltd., ZTE Corporation, Xiamen Kehua Hengsheng Co., Ltd., Guangdong Telecom Planning and Design
Planning and Design Institute Co., Ltd., Shanghai Post and Telecommunications Design and Consulting Institute Co., Ltd., Jiangsu Post and Telecommunications Planning and Design Institute Co., Ltd., China Mobile
Group Design Institute Co., Ltd., Schneider Electric Information Technology (China) Co., Ltd., Huawei Technologies Co., Ltd., New H3C Technology Co., Ltd.,
Hangzhou Zhongheng Electric Co., Ltd., Shenzhen Kstar Technology Co., Ltd., Shanghai Nokia Bell Co., Ltd., Guangdong Zhichengguan
Army Group Co., Ltd., Shenzhen Jinweiyuan Technology Co., Ltd., Lanzhou Haihong Technology Co., Ltd., Zhengzhou Foguang Power Equipment Co., Ltd.
Company, Fiberhome Technology Group Co., Ltd., Wolong Electric Group Zhejiang Lighthouse Power Co., Ltd., Zhejiang Tianzheng Electric Co., Ltd., China
Tower Co., Ltd., Purcell Communication Service Technology Co., Ltd.
The main drafters of this standard. Liu Baoqing, Yang Yingjie, Liu Zhenghai, Hou Yongtao, Jia Jun, Du Min, Zhu Li, Dai Xunfang, Wang Ping, Shen Xiaodong,
Tian Lanhua, Hu Xianhong, Huang Zhanjiangyong, Cheng Jinhui, Li Feng, Zhu Guanfeng, Guo Wu, Xu Dong, Zhou Chuanling, Yang Ping, Xu Feifei, Li Bin, Cheng Hong
Bing, Kuang Jinhua, Yan Xiping, Zhang Xingwen, Guo Haiqin, Sun Hao, Zhu Weimin, Wu Xing, Gao Jian, Li Bingtao.
This standard was first published in.1995, revised for the first time in.2000, revised for the second time in.2010, and this is the third revision.
General technical requirements for power supply system of communication bureau (station)
1 Scope
This standard specifies the basic principles and requirements of communication power supply systems, including the structure and form of power supply systems of various communication bureaus (stations).
Power supply system, DC power supply system, lightning protection and grounding, technical performance requirements of main power equipment, power supply system monitoring, environmental conditions and other requirements.
This standard is applicable to all types of communication station power systems.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document.
For undated references, the latest version (including all amendments) applies to this document.
GB 12348 Environmental Noise Emission Standard at the Boundary of Industrial Enterprises
GB 50016 Code for fire protection of building design
GB/T 50065 Grounding design code for AC electrical installations
GB 50689 Communications Bureau (Station) Lightning Protection and Grounding Engineering Design Code
GB 51194 Code for Design of Installation Engineering of Communication Power Supply Equipment
YD/T 1058 High-frequency switching power supply system for communication
YD/T 1363 Centralized Monitoring and Management System for Power Supply, Air Conditioning and Environment of Communication Bureau (Station)
YD/T 1818 Telecom Data Center Power System
YD/T 2378 240V DC power supply system for communication
YD/T 3007 Lightning protection and grounding technical requirements for small wireless systems
YD/T 3089 336V DC power supply system for communication
YD 5059 Code for seismic design of telecommunication equipment installation.
3 General
3.1 Communication bureaus (stations) are divided into the following categories according to their importance and scale.
-One type of bureau station. has a computer room that carries international and inter-provincial network services, a computer room that provides services and support for the whole province,
Office stations such as super large and large data center computer rooms.
-Two types of office stations. office stations that have a computer room that carries local network services, a computer room that provides services and support for the entire local network, and a medium-sized data center computer room.
-Three types of office stations. office stations with computer rooms and small data center computer rooms that carry regional services and support in the local network.
-Four types of office stations. stations with computer rooms, base stations, and indoor distribution stations that carry network terminal access services.
3.2 In the initial stage of construction, the first and second types of bureau stations should take the external city power, substation and distribution as the infrastructure. The introduction of external power
The area reserved for power distribution, generator sets, and power battery rooms should consider long-term load requirements. The construction of power transformation, distribution and generator sets should be considered convenient for expansion.
3.3 The newly-built bureau (station) shall conduct an EMC environmental assessment in accordance with national environmental protection requirements.
3.4 Communication bureaus (stations) should give priority to using safe and energy-saving power supply methods and power equipment. The application of energy-saving equipment should not sacrifice communication equipment
At the expense of the longevity of the equipment and reducing the safety of the system.
3.5 A monitoring and centralized maintenance and management system for the power supply system of the communication bureau (station) should be established, in line with the provisions of YD/T 1363, and gradually achieve fewer people or unattended.
3.6 The communication bureau (station) should have reliable overvoltage and lightning protection functions, and comply with the regulations of GB 50689.Reconstruction and expansion of the communications bureau (station),
The grounding and lightning protection facilities should be improved according to the requirements of the specification to ensure the safety of communication.
3.7 The configuration of the power supply system should meet the requirements of reliability indicators.
4 Introduction of external electricity
4.1 The reliability and classification of the mains power shall be fully considered during the construction of the communication station. See the classification and unavailability index of the mains power supply mode in 11.1.
In principle, the introduction of the first category of city power should be considered for the first type of station; the second category of communication bureau should consider the introduction of the second type of city power in principle, and when the external power conditions are available,
When the investment growth is not large, consider the introduction of the first type of city power; the third type of bureau station, the second type of city power when the conditions are met, and the third type of city power when the conditions are not available;
The four types of office stations can introduce reliable 380V or 220V power supply nearby.
4.2 The introduction of external city power should consider future scalability. The voltage level of the imported external city power can be used according to the local power supply conditions and the bureau (station)
The capacity and the requirements of the power supply department are determined. Choose from 220kV, 110kV, 66kV, 35kV, 20kV, 10kV, 380V or 220V power supply.
Determined by technical and economic comparison.
5 Power system composition
5.1 System composition
The power supply system of the communication bureau (station) is the equipment that provides electricity for various communication equipment and building loads in the counterpart bureau (station) and guarantees these equipment
The general term for ancillary equipment in normal operation. The power supply system consists of an AC power supply system, a DC power supply system, a grounding system, a lightning protection system, and a monitoring system.
5.2 AC power supply system
The AC power supply system includes a substation and distribution system, a backup power system, an uninterruptible power supply system (UPS), and the corresponding AC power distribution.
The power distribution system includes high-voltage power distribution equipment, low-voltage power distribution equipment, transformers, and operating power supplies.
The backup power system includes generator sets and auxiliary equipment.
Uninterruptible power supply system (UPS) includes UPS, input and output distribution cabinets, and battery packs.
5.3 DC power supply system
The DC power supply system is composed of input power distribution, rectifier, battery pack, DC output power distribution, and DC-DC conversion equipment.
The voltage levels of the system are -48V, 240V, 336V, etc.
5.4 Grounding system
The grounding system is composed of grounding body, grounding lead-in wire, collecting bar, floor grounding bar, working and protective grounding wire.
5.5 Lightning protection system
The lightning protection system consists of air-termination devices, lightning down conductors, grounding bodies, equipotential connections, and various levels of lightning protection devices (lightning protection devices, lightning protection isolation
Transformers, etc.) and other components.
5.6 Monitoring system
The monitoring system is composed of various collection equipment, network transmission equipment, and monitoring terminals.
According to the position of the information communication equipment in the computer room in the network, the importance of the equipment, and the different service levels of the users served,
The computer room is divided into the following types.
--Class A computer rooms, such as computer rooms that carry international and inter-provincial network services, computer rooms that provide services and support for the whole province, super
Large and large IDC computer rooms, etc.;
--Class B computer rooms, such as computer rooms that carry local network services, and computer rooms that provide services and support for the entire local network (in principle, corresponding
Prefecture-level hub computer room), medium-sized IDC computer room, etc.;
--Class C computer rooms, such as computer rooms that carry regional services and support in the local network (in principle, corresponding to county-level and local network regional-level computer rooms)
And small IDC machine room, power machine room, etc.;
---Class D computer rooms, such as computer rooms and base station computer rooms that carry network terminal access services;
--E-type computer room, such as site without machine room, outdoor cabinet etc.
Note. The classification of data centers should be in accordance with the requirements of Chapter 5 of YD/T 3032-2016.
6 Power system types and application principles
6.1 Commonly used power supply system types of communication bureaus (stations)
6.1.1 Overview
The power supply system of the communication bureau (station) shall ensure stable, reliable and safe power supply. The power supply systems of different bureaus (stations) have different structure and system types.
6.1.2 Types of power supply systems for data centers and hubs
The power supply system types of common data centers and hubs can be divided into high-voltage centralized switching according to the different switching points of the standby power supply.
Power supply systems, high-voltage distributed switching power supply systems, low-voltage centralized switching power supply systems, and low-voltage distributed switching power supply systems can also be
Depending on the situation of the specific station, it can be realized as a centralized and decentralized power supply system, or both a high-voltage backup power supply and a low-voltage backup power supply system.
The power supply system of the source system. Appendix A of this standard provides several typical power supply system types as examples.
6.1.3 Commonly used multi-energy power supply method power system type
The multi-energy power supply system uses a combination of AC power and solar power (or wind power). The system is powered by solar
It consists of electricity, wind power, low-voltage mains, battery packs, rectification and distribution equipment, and mobile power stations. For microwave unattended relay stations, if
When the communication load is large and solar power supply is not suitable, the power supply system can be composed of mains power and fixed unattended automatic diesel generator sets and highly reliable AC and DC power equipment.
6.1.4 Types of power supply systems for mobile communication base stations
Figure 2 is a schematic diagram of a mobile communication base station power supply system, in which the switching power supply has a low-voltage secondary cut-off function (secondary power-off). this
This kind of power supply method is suitable for the macro base station of mobile communication.
Figure 2 Schematic diagram of mobile communication base station power supply system
6.1.5 Types of integrated combined power supply systems commonly used in small stations
The integrated combined power system includes two types. integrated UPS power supply and integrated DC power supply.
The integrated DC power supply refers to the combination of AC power distribution, DC power distribution, rectification, battery pack, and monitoring unit in the same rack, as shown in Figure 4.
This method is suitable for small communication stations, such as access websites, indoor distribution stations, and outdoor small base stations.
When an outdoor station with a small capacity adopts an integrated power supply, lead-acid or lithium-ion batteries can be used as a backup power supply.
6.1.6 Types of DC remote power supply systems commonly used in small stations
The DC remote power supply system uses DC -48V from the combined switching power supply of the mobile communication macro base station, and boosts it to DC 380V for long-distance transmission.
Converted to DC -48V output for power supply for small mobile communication base station communication equipment. The DC remote power supply system consists of DC remote power supply
It is composed of cable and DC remote power supply, as shown in Figure 5.The output voltage of the remote device meets the requirements of -48V DC basic power supply.
6.2 Application principles of power supply system
6.2.1 The first and second types of bureau stations should adopt the transformation and distribution system, the backup power system is relatively centralized; the UPS system and the DC power supply system are relatively dispersed
The way. If the load of the three types of bureau stations is small, the centralized power supply mode of UPS and DC power supply system can be adopted. The same station needs to install multiple transformers
According to comprehensive economic and technical comparison, it is recommended to use high-voltage relatively centralized, transformer and low-voltage power distribution to distribute power supply, and the layout is close to the load.
6.2.2 When using capacitors for reactive power compensation, the communications bureau (station) should connect a certain proportion of reactors in series according to the nature of the load.
When the natural power factor of the communication bureau (station) is above 0.95, it is not appropriate to use capacitors for reactive power compensation. Communication bureau (station) may
When capacitive reactive power appears, active reactive power compensation devices should be used. When the capacitive reactive power of the communication bureau (station) is too large, a parallel reactor can be used for power compensation.
6.2.3 When the total harmonic current (THDI) in the substation and distribution system is greater than 10%, it should be treated.
6.2.4 The wiring of the low-voltage AC power supply system should be simple and reliable, starting from the output of the transformer to the power supply equipment of the computer room such as UPS and DC system.
The number of power distribution levels for equipment or computer room air conditioning should not exceed three levels. The parameters of the power distribution switches at all levels are set according to the load conditions.
Be selective. With the expansion of the communication load, the tripping setting value of the switch should be adjusted accordingly.
7 Basic power supply
7.1 Classification
The basic power supply of the communication bureau (station) is divided into AC basic power and DC basic power.
7.2 AC basic power supply
7.2.1 The AC power provided by the mains or standby generator sets (including mobile power stations) is the AC basic power supply used by the communication bureau (station).
7.2.2 The nominal voltage and frequency of the AC basic power supply are listed in Table 1.
7.2.3 For communication equipment, power supply equipment and building electrical equipment that use low-voltage alternating current, the voltage measured at their power input terminals allows
The allowable variation range is. 10% to -15% of the rated voltage value. Use 10kV alternating current electrical equipment, measure at its power input terminal
The allowable range of voltage variation is. ±10% of the rated voltage value.
7.2.4 When the mains supply voltage cannot meet the provisions of 7.2.3 or the electrical equipment has higher requirements, voltage regulating or stabilizing equipment can be used.
7.2.5 The allowable range of frequency variation of the AC basic power supply is ±4% of the rated value.
7.2.6 The sinusoidal distortion rate of the voltage waveform should not be greater than 5%.
7.3 DC basic power supply
7.3.1 The power supply that provides DC voltage to various communication equipment and secondary conversion power supply equipment or devices is the DC basic power supply.
7.3.2 The voltage types of the DC basic power supply used by the communication bureau (station) are listed in Table 2.
7.3.3 The allowable range of voltage variation at the power receiving terminal of the communication equipment (DC input terminal of the communication equipment) is listed in Table 3.
7.4 Selection of DC basic power supply
7.4.1 The station on the access side of the communication network adopts -48V DC power supply or AC power supply.
7.4.2 The communication network side bureau (station) preferentially adopts 240V, 336V DC basic power supply. The original -48V DC basic power supply gradually changes to 240V,
336V DC basic power supply transition.
7.4.3 With the coordinated development of power supply equipment technology and communication equipment technology, ICT equipment on the communication network side can adopt
The dual-channel hybrid power supply mode composed of the power supply and 240V, 336V DC basic power supply.
8 AC power supply mode
8.1 Working mode of power distribution system
Mains power is used as the main power source. When the mains power fails, the generator set will start to supply power. The mains and generator sets can be switched automatically or manually.
The utility power and the generator set shall have interlocking function, and the automatic transfer switch (Automatic Transfer Switch, ATS) with intermediate position can be adopted,
Double throw switch or double air circuit breaker interlock. It is forbidden to use the switch with double contactor to switch between two power sources.
8.2 Types of UPS power supply system
UPS equipment sets different types according to the importance of the power supply objects, mainly including. parallel redundancy, independent dual bus and other modes, as shown in Figure 6 and Figure 7.
9 DC power supply mode
9.1 The DC power supply shall adopt the full-float charging mode. When the AC power supply is normal, the floating charging works in parallel with the battery pack via the rectifier.
Standby power supply. When the AC power supply fails, the battery pack is discharged and supplied. After the AC power is restored, the power supply mode with load constant voltage and current limiting charging should be implemented.
9.2 When the communication bureau (station) uses the peak-valley price difference and adopts the peak-shifting and valley-filling operation mode, it is advisable to select batteries suitable for fast charging and recycling applications.
9.3 The DC power supply mode of the communication bureau (station) should ensure stable and reliable power supply, and the power supply equipment should be arranged close to the communication equipment so that the DC feeder
Shorten the length as much as possible to reduce power consumption and installation costs. The composition of the power supply system and the layout of power equipment should be in the communications bureau (station)
When increasing the capacity, the power supply equipment can expand the capacity correspondingly and flexibly, and is beneficial to the installation and maintenance of the equipment.
9.4 Communication bureaus (stations) can set up multiple independent DC power supply systems.
10 Dual hybrid power supply mode
10.1 Basic architecture of dual-channel hybrid power supply
10.1.1 The power supply system of the communication bureau (station) can adopt a dual-channel hybrid power supply architecture with one mains power plus one guaranteed power supply, as shown in Figure 8.
10.1.2 The guarantee power supply can choose 240V/336V DC power supply system or AC UPS power supply system.
10.2 Working mode of dual hybrid power supply mode
10.2.1 The work mode that the mains and the guaranteed power are equally divided or the load is shared proportionally can be adopted. The city power can also be used to ...
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of YD/T 1051-2018_English be delivered?Answer: Upon your order, we will start to translate YD/T 1051-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of YD/T 1051-2018_English with my colleagues?Answer: Yes. The purchased PDF of YD/T 1051-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay. Question 5: Should I purchase the latest version YD/T 1051-2018?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version YD/T 1051-2018 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.
|