Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
According to the requirements of Notice on Issuing the Development and Revision Plan of National Engineering Construction Standards and Codes in 2011 (JIANBIAO [2011] No. 17) issued by the Ministry of Housing and Urban-Rural Development, this code is revised from the former national standard by China Electronics Engineering Design Institute jointly with all the organizations concerned.
In the process of revision, the drafting group modifies, perfects, standardizes and finalizes the code upon review through extensive investigation and study, careful summarization of practical experience, reference to relevant international and foreign advanced standards and extensive solicitation of opinions.
This code consists of 13 chapters and 1 annex with main technical contents as follows: General Provisions, Terms and Symbols, Rating Classification and Required Features, Site Selection and Equipment Layout, Environmental Requirement, Building and Structure, Air Conditioning, Electrical System, Electromagnetic Shielding, Network and Cabling System, Intelligent System, Water Supply and Drainage, Fire Protection and Safety.
Main revised contents of this code include:
(1) According to the condition that various industries have larger difference for the requirements and scale of data centers at present, the defining range of Grade A data center is added so as to meet the design requirements of different industries.
(2) Design requirements for network system and business recovery data center are added.
(3) Chapter 11 "Monitoring and Safety Protection" is changed to "Intelligent System".
In this code, provisions printed in bold type are compulsory and must be enforced strictly.
The Ministry of Housing and Urban-Rural Development is in charge of the administration of this code and the explanation of compulsory provisions. China Electronics Engineering Design Institute is responsible for the explanation of the specific technical contents. During the process of implementing this code, If there are any comments or suggestions, please send to the Management Group of China Electronics Engineering Design Institute for Code for Design of Data Centers (address: Linglong Tiandi Building, No.160, West 4th Ring North Road, Haidian District, Beijing; 100142; Fax: 010-88193388-9989) for reference in future revision.
Contents
1 General Provisions 1
2 Terms and Symbols 1
2.1 Terms 1
2.2 Symbols 6
3 Rating Classification and Required Features 7
3.1 Rating Classification 7
3.2 Required Features 7
4 Site Selection and Equipment Layout 8
4.1 Site Selection 8
4.2 Composition 9
4.3 Equipment Layout 10
5 Environmental Requirement 11
5.1 Temperature, Dew Point Temperature and Airborne Particle Concentration 11
5.2 Noise, Electromagnetic Interference, Vibration and Static Electricity 11
6 Building and Structure 11
6.1 General Requirements 11
6.2 People Flow, Goods Flow, Entrances and Exits 12
6.3 Retaining Structure Thermal Design and Energy Saving Measure 13
6.4 Interior Decoration 13
7 Air Conditioning 14
7.1 General Requirements 14
7.2 Thermal Load Calculation 15
7.3 Airflow Management 15
7.4 System Design 16
7.5 Equipment Selection 18
8 Electrical Systems 19
8.1 Power Supply and Distribution 19
8.2 Lighting 21
8.3 Electrostatic Discharge Protection 22
8.4 Lightning Protection and Earthing 23
9 Electromagnetic Shielding 24
9.1 General Requirements 24
9.2 Shielding Structure 25
9.3 Shielding Objects 25
10 Network and Cabling System 26
10.1 Network System 26
10.2 Cabling System 26
11 Intelligent System 28
11.1 General Requirements 29
11.2 Environment and Equipment Monitoring System 29
11.3 Security System 30
11.4 Enterprise Command Center 30
12 Water Supply and Drainage 31
12.1 General Requirements 31
12.2 Piping Layout 31
13 Fire Protection and Safety 31
13.1 General Requirements 31
13.2 Fire Prevention and Evacuation 32
13.3 Fire Protection Facilities 34
13.4 Safety Measures 34
Annex A Technical Requirements for Data Center Ratings 36
Explanation of Wording in This Code 46
List of Quoted Standards 47
Code for Design of Data Centers
1 General Provisions
1.0.1 This code is formulated with view to standardizing the design of data center, ensuring the safe, stable and reliable operation of electronic information system, and achieving technical advancement, economic feasibility, safety and usability as well as energy conservation and environment protection.
1.0.2 This code is applicable to the design of newly-built, renovated and extended data centers.
1.0.3 The design of data center shall comply with the principle of keeping short-term construction scale and long-term development plan consistent.
1.0.4 Besides the requirements stipulated in this code, the design of data center shall also comply with those stipulated in the current relevant standards of the nation.
2 Terms and Symbols
2.1 Terms
2.1.1 data center
the building site for providing operating environment for the electronic information equipment placed centrally, which can be one or several building(s) or a part of one building, including computer room, auxiliary area, support area and administrative area, etc.
2.1.2 computer room
the building space mainly used for the installation and operation of data processing equipment and including functional area such as server room, network equipment room, storage room
2.1.3 auxiliary area
the place for the installation, commissioning, maintenance, operation monitoring and management of electronic information equipment and software, including entrance room, test equipment room, enterprise command center, fire protection and security control room, unpacking area, spare parts storeroom, printing room, maintenance room, etc.
2.1.4 support area
the area providing power support and safety guarantee for computer room and auxiliary area, including power transformation and distribution room, diesel generator room, battery room, air-conditioner room, power station room, uninterruptible power system room, fire protection device room, etc.
2.1.5 administrative area
the place for daily administration and customer's management on managed devices, including office, hall, duty room, washroom, dressing room and user's work room
2.1.6 business recovery data center
the place for taking over the operation of production system, making data processing and supporting the operation of critical business functions in case of disaster, including restricted area, regular area and dedicated area
2.1.7 restricted area
the place restricting the accessing of different categories of personnel according to safety needs, including computer room, auxiliary area and support area, etc.
2.1.8 regular area
the place for disaster recovery, routine training and working
2.1.9 dedicated area
the place for using and placing equipment during disaster recovery period
2.1.10 infrastructure
in this code, it refers to the facilities providing operation guarantee for electronic information equipment in data center
2.1.11 electronic information equipment
the equipment performing processing such as acquisition, processing, calculation, storage, transfer and retrieval of electronic information, including server, exchanger, storage equipment, etc.
2.1.12 redundancy
some or all parts of system are repeatedly configured so that, in case of systemic fault, they can interfere in and undertake the operation of faulty part to extend the mean time interval between failures of system
2.1.13 N+X redundancy
besides meeting basic requirement by system, X components, X units, X modules or X paths are added. The fault or maintenance of any of the X components, units, modules or paths will not lead to system outage (X=1~N)
2.1.14 fault tolerant
if there are two or more systems, at least one system operates normally at the same time. The infrastructure configured according to fault tolerant system shall meet the basic requirement for normal operation of electronic information equipment after subjecting to one serious sudden equipment fault or man-made misoperation
2.1.15 electromagnetic interference (EMI)
degradation of device, equipment or system performance induced by electromagnetic disturbance
2.1.16 electromagnetic shielding
a shielding to reduce the penetration of alternating electromagnetic field into a designated area through conducting material.
2.1.17 electromagnetic shielding enclosure
the building space body used exclusively for attenuating and isolating the energy from external or internal electric and magnetic fields
2.1.18 cut-off waveguide vent
the device combining cut-off waveguide and vent, which allows for ventilation and can attenuate electromagnetic wave within a certain frequency range
electromagnetic shielding enclosure with dismountable structure, which is built with module board of pre-shaped shielding enclosure, structural member, shielding component and the like via assembly on construction site according to design requirements
2.1.20 welded electromagnetic shielding enclosure
electromagnetic shielding enclosure with fixed structure, whose main structure is constructed by site welding
2.1.21 remote power panel (RPP)
equipment for providing distribution arrangement for cabinets arrayed in a rows or divided according to functional area
2.1.22 horizontal distribution area cabinet
horizontal distribution area equipment for providing network service for cabinets arrayed in a rows or divided according to functional area
2.1.23 intelligent cabling management system
a set of complete soft/hardware integration system, which realizes the intelligent management for tracing, recording and reporting cabling system and network equipment connection state by monitoring the connection attribute of electronic distribution equipment port in real time
2.1.24 static state
air conditioning system of computer room is under normal operating state; indoor temperature and dew point temperature meet the operating requirement of electronic information equipment, but electronic information equipment does not operate
2.1.25 dynamic state
air conditioning system and electronic information equipment of computer room are under normal operating state and there are relevant personnel in the room
2.1.26 stop condition
air conditioning system of computer room and auxiliary area are under normal operating state; indoor temperature and relative humidity meet stop requirements of electronic information equipment
2.1.27 electrostatic leakage
the phenomenon that the electrostatic charge on electrified body disappeared partially or completely through the interior or surface of electrified body
2.1.28 volume resistance
the quotient of the DC voltage between two electrodes on two relative surfaces of anti-static floor material to the steady-state current flowing between two electrodes
2.1.29 protective earthing
the earthing for protecting personal and equipment safety
2.1.30 functional earthing
the earthing for ensuring normal operation of equipment (system) and realizing equipment (system) function correctly
2.1.31 earthing conductor
the connecting conductor from earthing terminal or earthing integration bar to earthing electrode
2.1.32 bonding bar
metal tape of equipotential bounding formed by connecting bounding grid, metal enclosure of equipment, metal pipeline, metal slot and metal structure of building
2.1.33 bounding conductor
the conductor connecting various separated conductive objects to earthing integration bar, bonding bar or bounding grid
2.1.34 power usage effectiveness (PUE)
the parameter representing power usage effectiveness of data center, which is the ratio of total power consumed by all power equipment in data center to total power consumed by all electronic information equipment
2.1.35 water usage effectiveness (WUE)
the parameter representing water usage effectiveness of data center, which is the ratio of total water volume consumed by all water-used equipment in data center to total power consumed by all electronic information equipment
2.1.36 automatic transfer switching equipment (ATSE)
the electric equipment composed of one or several transfer switching equipment and other necessary electric equipment for monitoring power circuit and transferring one or several load circuit(s) from one supply to another supply automatically
2.1.37 computational fluid dynamics (CFD)
the computing method for obtaining temperature field, pressure field, velocity field and the like by analyzing physical phenomena such as fluid flow and heat transfer after solving flow mechanics equation via computer simulation
2.1.38 duplicate supply
it refers to that supply of one load is provided by two circuits which are considered mutually independent in terms of safe power supply
2.1.39 enterprise command center (ECC)
the platform for providing services such as centralized monitoring, commanding and dispatching, technical support and emergency drilling for each system of data center, which is also referred to as monitoring center
2.1.40 uninterruptible power system (UPS)
the system composed of converter, switch and energy storage device, for outputting AC/DC power in case the input supply is normal or out of service and maintaining the continuity of powering a load within a certain period of time
2.1.41 total cost of ownership (TCO)
the sum of construction cost and operating cost within the total life cycle of data center
2.1.42 cloud computing
a kind of computing resource serve mode, which enable users, through the network, to use the configurable computing resource from resource pool by request conveniently; computing resource can be deployed and released rapidly
2.1.43 Data Center Infrastructure Management (DCIM)
data center infrastructure management is to assist data center operating maintenance personnel in managing data and optimizing the features of data center by collecting asset, resource information as well as the operating state of equipment from data center continuously and analyzing, integrating and extracting data available
2.2 Symbols
N base requirement
MPO multi-fiber push on
3 Rating Classification and Required Features
3.1 Rating Classification
3.1.1 Data center should be divided into Grades A, B and C. In design, the grade shall be determined according to the service purpose of data center and the loss or influence of data loss or network interruption on economy or society.
3.1.2 The data center shall be Grade A in case of any of the following conditions:
1 interruption of electronic information system operation may lead to vital economic loss;
2 interruption of electronic information system operation may lead to serious confusion for public places.
3.1.3 In case of any one of the following conditions, it shall be Grade B:
1 interruption of electronic information system operation may lead to larger economic loss;
2 interruption of electronic information system operation may lead to confusion for public places.
3.1.4 The data center not belonging to Grade A or Grade B shall be Grade C.
3.1.5 As for the business recovery data center established in or beyond the city, it shall be designed at same grade as master data center.
3.1.6 Constituent parts of data center infrastructure should be designed according to technical requirements for same grade or for different grades. Where constituent parts are designed according to different grades, the grade of data center shall be determined according to the minimum grade.
3.2 Required Features
3.2.1 The infrastructure of Grade A data center should be configured according to fault tolerant system; the infrastructure shall still be capable of ensuring the normal operation of electronic information system after one accident or the maintenance or overhaul of single system equipment during the operation period of electronic information system.
3.2.2 Where Grade A data center meets the following requirements simultaneously, the power of electronic information equipment may be supplied under the combination of uninterruptible power system and mains supply system:
1 the normal operation of electronic information equipment shall be ensured during equipment or line maintenance;
2 the quality of power supplied by mains supply directly shall meet the requirements for the normal operation of electronic information equipment;
3 the power factor at the accessing point of mains supply shall meet the requirements of local power supply department;
4 diesel generator system shall be capable of bearing the influence of capacitive load;
5 permissible value (r.m.s. value) of harmonic current component injected into public supply network shall meet the relevant requirement of the current national standard GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network.
3.2.3 Where two or more data centers are constructed simultaneously at different areas and they are reserved each other, moreover data real-time transmission service meets continuity requirement, the infrastructure of data center can be configured according to fault tolerant system or redundant system.
3.2.4 Infrastructure of Grade B data center shall be configured according to redundancy requirements. During the operation period of electronic information system, infrastructure shall not lead to interruption of electronic information system operation on account of equipment failure in the range of redundancy capacity.
3.2.5 Infrastructure of Grade C data center shall be configured according to basic requirement. Under normal operation of the infrastructure, electronic information system shall keep operating without interruption.
1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Rating Classification and Required Features 3.1 Rating Classification 3.2 Required Features 4 Site Selection and Equipment Layout 4.1 Site Selection 4.2 Composition 4.3 Equipment Layout 5 Environmental Requirement 5.1 Temperature, Dew Point Temperature and Airborne Particle Concentration 5.2 Noise, Electromagnetic Interference, Vibration and Static Electricity 6 Building and Structure 6.1 General Requirements 6.2 People Flow, Goods Flow, Entrances and Exits 6.3 Retaining Structure Thermal Design and Energy Saving Measure 6.4 Interior Decoration 7 Air Conditioning 7.1 General Requirements 7.2 Thermal Load Calculation 7.3 Airflow Management 7.4 System Design 7.5 Equipment Selection 8 Electrical Systems 8.1 Power Supply and Distribution 8.2 Lighting 8.3 Electrostatic Discharge Protection 8.4 Lightning Protection and Earthing 9 Electromagnetic Shielding 9.1 General Requirements 9.2 Shielding Structure 9.3 Shielding Objects 10 Network and Cabling System 10.1 Network System 10.2 Cabling System 11 Intelligent System 11.1 General Requirements 11.2 Environment and Equipment Monitoring System 11.3 Security System 11.4 Enterprise Command Center 12 Water Supply and Drainage 12.1 General Requirements 12.2 Piping Layout 13 Fire Protection and Safety 13.1 General Requirements 13.2 Fire Prevention and Evacuation 13.3 Fire Protection Facilities 13.4 Safety Measures Annex A Technical Requirements for Data Center Ratings Explanation of Wording in This Code List of Quoted Standards
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
According to the requirements of Notice on Issuing the Development and Revision Plan of National Engineering Construction Standards and Codes in 2011 (JIANBIAO [2011] No. 17) issued by the Ministry of Housing and Urban-Rural Development, this code is revised from the former national standard by China Electronics Engineering Design Institute jointly with all the organizations concerned.
In the process of revision, the drafting group modifies, perfects, standardizes and finalizes the code upon review through extensive investigation and study, careful summarization of practical experience, reference to relevant international and foreign advanced standards and extensive solicitation of opinions.
This code consists of 13 chapters and 1 annex with main technical contents as follows: General Provisions, Terms and Symbols, Rating Classification and Required Features, Site Selection and Equipment Layout, Environmental Requirement, Building and Structure, Air Conditioning, Electrical System, Electromagnetic Shielding, Network and Cabling System, Intelligent System, Water Supply and Drainage, Fire Protection and Safety.
Main revised contents of this code include:
(1) According to the condition that various industries have larger difference for the requirements and scale of data centers at present, the defining range of Grade A data center is added so as to meet the design requirements of different industries.
(2) Design requirements for network system and business recovery data center are added.
(3) Chapter 11 "Monitoring and Safety Protection" is changed to "Intelligent System".
In this code, provisions printed in bold type are compulsory and must be enforced strictly.
The Ministry of Housing and Urban-Rural Development is in charge of the administration of this code and the explanation of compulsory provisions. China Electronics Engineering Design Institute is responsible for the explanation of the specific technical contents. During the process of implementing this code, If there are any comments or suggestions, please send to the Management Group of China Electronics Engineering Design Institute for Code for Design of Data Centers (address: Linglong Tiandi Building, No.160, West 4th Ring North Road, Haidian District, Beijing; 100142; Fax: 010-88193388-9989) for reference in future revision.
Contents
1 General Provisions 1
2 Terms and Symbols 1
2.1 Terms 1
2.2 Symbols 6
3 Rating Classification and Required Features 7
3.1 Rating Classification 7
3.2 Required Features 7
4 Site Selection and Equipment Layout 8
4.1 Site Selection 8
4.2 Composition 9
4.3 Equipment Layout 10
5 Environmental Requirement 11
5.1 Temperature, Dew Point Temperature and Airborne Particle Concentration 11
5.2 Noise, Electromagnetic Interference, Vibration and Static Electricity 11
6 Building and Structure 11
6.1 General Requirements 11
6.2 People Flow, Goods Flow, Entrances and Exits 12
6.3 Retaining Structure Thermal Design and Energy Saving Measure 13
6.4 Interior Decoration 13
7 Air Conditioning 14
7.1 General Requirements 14
7.2 Thermal Load Calculation 15
7.3 Airflow Management 15
7.4 System Design 16
7.5 Equipment Selection 18
8 Electrical Systems 19
8.1 Power Supply and Distribution 19
8.2 Lighting 21
8.3 Electrostatic Discharge Protection 22
8.4 Lightning Protection and Earthing 23
9 Electromagnetic Shielding 24
9.1 General Requirements 24
9.2 Shielding Structure 25
9.3 Shielding Objects 25
10 Network and Cabling System 26
10.1 Network System 26
10.2 Cabling System 26
11 Intelligent System 28
11.1 General Requirements 29
11.2 Environment and Equipment Monitoring System 29
11.3 Security System 30
11.4 Enterprise Command Center 30
12 Water Supply and Drainage 31
12.1 General Requirements 31
12.2 Piping Layout 31
13 Fire Protection and Safety 31
13.1 General Requirements 31
13.2 Fire Prevention and Evacuation 32
13.3 Fire Protection Facilities 34
13.4 Safety Measures 34
Annex A Technical Requirements for Data Center Ratings 36
Explanation of Wording in This Code 46
List of Quoted Standards 47
Code for Design of Data Centers
1 General Provisions
1.0.1 This code is formulated with view to standardizing the design of data center, ensuring the safe, stable and reliable operation of electronic information system, and achieving technical advancement, economic feasibility, safety and usability as well as energy conservation and environment protection.
1.0.2 This code is applicable to the design of newly-built, renovated and extended data centers.
1.0.3 The design of data center shall comply with the principle of keeping short-term construction scale and long-term development plan consistent.
1.0.4 Besides the requirements stipulated in this code, the design of data center shall also comply with those stipulated in the current relevant standards of the nation.
2 Terms and Symbols
2.1 Terms
2.1.1 data center
the building site for providing operating environment for the electronic information equipment placed centrally, which can be one or several building(s) or a part of one building, including computer room, auxiliary area, support area and administrative area, etc.
2.1.2 computer room
the building space mainly used for the installation and operation of data processing equipment and including functional area such as server room, network equipment room, storage room
2.1.3 auxiliary area
the place for the installation, commissioning, maintenance, operation monitoring and management of electronic information equipment and software, including entrance room, test equipment room, enterprise command center, fire protection and security control room, unpacking area, spare parts storeroom, printing room, maintenance room, etc.
2.1.4 support area
the area providing power support and safety guarantee for computer room and auxiliary area, including power transformation and distribution room, diesel generator room, battery room, air-conditioner room, power station room, uninterruptible power system room, fire protection device room, etc.
2.1.5 administrative area
the place for daily administration and customer's management on managed devices, including office, hall, duty room, washroom, dressing room and user's work room
2.1.6 business recovery data center
the place for taking over the operation of production system, making data processing and supporting the operation of critical business functions in case of disaster, including restricted area, regular area and dedicated area
2.1.7 restricted area
the place restricting the accessing of different categories of personnel according to safety needs, including computer room, auxiliary area and support area, etc.
2.1.8 regular area
the place for disaster recovery, routine training and working
2.1.9 dedicated area
the place for using and placing equipment during disaster recovery period
2.1.10 infrastructure
in this code, it refers to the facilities providing operation guarantee for electronic information equipment in data center
2.1.11 electronic information equipment
the equipment performing processing such as acquisition, processing, calculation, storage, transfer and retrieval of electronic information, including server, exchanger, storage equipment, etc.
2.1.12 redundancy
some or all parts of system are repeatedly configured so that, in case of systemic fault, they can interfere in and undertake the operation of faulty part to extend the mean time interval between failures of system
2.1.13 N+X redundancy
besides meeting basic requirement by system, X components, X units, X modules or X paths are added. The fault or maintenance of any of the X components, units, modules or paths will not lead to system outage (X=1~N)
2.1.14 fault tolerant
if there are two or more systems, at least one system operates normally at the same time. The infrastructure configured according to fault tolerant system shall meet the basic requirement for normal operation of electronic information equipment after subjecting to one serious sudden equipment fault or man-made misoperation
2.1.15 electromagnetic interference (EMI)
degradation of device, equipment or system performance induced by electromagnetic disturbance
2.1.16 electromagnetic shielding
a shielding to reduce the penetration of alternating electromagnetic field into a designated area through conducting material.
2.1.17 electromagnetic shielding enclosure
the building space body used exclusively for attenuating and isolating the energy from external or internal electric and magnetic fields
2.1.18 cut-off waveguide vent
the device combining cut-off waveguide and vent, which allows for ventilation and can attenuate electromagnetic wave within a certain frequency range
2.1.19 modular electromagnetic shielding enclosure
electromagnetic shielding enclosure with dismountable structure, which is built with module board of pre-shaped shielding enclosure, structural member, shielding component and the like via assembly on construction site according to design requirements
2.1.20 welded electromagnetic shielding enclosure
electromagnetic shielding enclosure with fixed structure, whose main structure is constructed by site welding
2.1.21 remote power panel (RPP)
equipment for providing distribution arrangement for cabinets arrayed in a rows or divided according to functional area
2.1.22 horizontal distribution area cabinet
horizontal distribution area equipment for providing network service for cabinets arrayed in a rows or divided according to functional area
2.1.23 intelligent cabling management system
a set of complete soft/hardware integration system, which realizes the intelligent management for tracing, recording and reporting cabling system and network equipment connection state by monitoring the connection attribute of electronic distribution equipment port in real time
2.1.24 static state
air conditioning system of computer room is under normal operating state; indoor temperature and dew point temperature meet the operating requirement of electronic information equipment, but electronic information equipment does not operate
2.1.25 dynamic state
air conditioning system and electronic information equipment of computer room are under normal operating state and there are relevant personnel in the room
2.1.26 stop condition
air conditioning system of computer room and auxiliary area are under normal operating state; indoor temperature and relative humidity meet stop requirements of electronic information equipment
2.1.27 electrostatic leakage
the phenomenon that the electrostatic charge on electrified body disappeared partially or completely through the interior or surface of electrified body
2.1.28 volume resistance
the quotient of the DC voltage between two electrodes on two relative surfaces of anti-static floor material to the steady-state current flowing between two electrodes
2.1.29 protective earthing
the earthing for protecting personal and equipment safety
2.1.30 functional earthing
the earthing for ensuring normal operation of equipment (system) and realizing equipment (system) function correctly
2.1.31 earthing conductor
the connecting conductor from earthing terminal or earthing integration bar to earthing electrode
2.1.32 bonding bar
metal tape of equipotential bounding formed by connecting bounding grid, metal enclosure of equipment, metal pipeline, metal slot and metal structure of building
2.1.33 bounding conductor
the conductor connecting various separated conductive objects to earthing integration bar, bonding bar or bounding grid
2.1.34 power usage effectiveness (PUE)
the parameter representing power usage effectiveness of data center, which is the ratio of total power consumed by all power equipment in data center to total power consumed by all electronic information equipment
2.1.35 water usage effectiveness (WUE)
the parameter representing water usage effectiveness of data center, which is the ratio of total water volume consumed by all water-used equipment in data center to total power consumed by all electronic information equipment
2.1.36 automatic transfer switching equipment (ATSE)
the electric equipment composed of one or several transfer switching equipment and other necessary electric equipment for monitoring power circuit and transferring one or several load circuit(s) from one supply to another supply automatically
2.1.37 computational fluid dynamics (CFD)
the computing method for obtaining temperature field, pressure field, velocity field and the like by analyzing physical phenomena such as fluid flow and heat transfer after solving flow mechanics equation via computer simulation
2.1.38 duplicate supply
it refers to that supply of one load is provided by two circuits which are considered mutually independent in terms of safe power supply
2.1.39 enterprise command center (ECC)
the platform for providing services such as centralized monitoring, commanding and dispatching, technical support and emergency drilling for each system of data center, which is also referred to as monitoring center
2.1.40 uninterruptible power system (UPS)
the system composed of converter, switch and energy storage device, for outputting AC/DC power in case the input supply is normal or out of service and maintaining the continuity of powering a load within a certain period of time
2.1.41 total cost of ownership (TCO)
the sum of construction cost and operating cost within the total life cycle of data center
2.1.42 cloud computing
a kind of computing resource serve mode, which enable users, through the network, to use the configurable computing resource from resource pool by request conveniently; computing resource can be deployed and released rapidly
2.1.43 Data Center Infrastructure Management (DCIM)
data center infrastructure management is to assist data center operating maintenance personnel in managing data and optimizing the features of data center by collecting asset, resource information as well as the operating state of equipment from data center continuously and analyzing, integrating and extracting data available
2.2 Symbols
N base requirement
MPO multi-fiber push on
3 Rating Classification and Required Features
3.1 Rating Classification
3.1.1 Data center should be divided into Grades A, B and C. In design, the grade shall be determined according to the service purpose of data center and the loss or influence of data loss or network interruption on economy or society.
3.1.2 The data center shall be Grade A in case of any of the following conditions:
1 interruption of electronic information system operation may lead to vital economic loss;
2 interruption of electronic information system operation may lead to serious confusion for public places.
3.1.3 In case of any one of the following conditions, it shall be Grade B:
1 interruption of electronic information system operation may lead to larger economic loss;
2 interruption of electronic information system operation may lead to confusion for public places.
3.1.4 The data center not belonging to Grade A or Grade B shall be Grade C.
3.1.5 As for the business recovery data center established in or beyond the city, it shall be designed at same grade as master data center.
3.1.6 Constituent parts of data center infrastructure should be designed according to technical requirements for same grade or for different grades. Where constituent parts are designed according to different grades, the grade of data center shall be determined according to the minimum grade.
3.2 Required Features
3.2.1 The infrastructure of Grade A data center should be configured according to fault tolerant system; the infrastructure shall still be capable of ensuring the normal operation of electronic information system after one accident or the maintenance or overhaul of single system equipment during the operation period of electronic information system.
3.2.2 Where Grade A data center meets the following requirements simultaneously, the power of electronic information equipment may be supplied under the combination of uninterruptible power system and mains supply system:
1 the normal operation of electronic information equipment shall be ensured during equipment or line maintenance;
2 the quality of power supplied by mains supply directly shall meet the requirements for the normal operation of electronic information equipment;
3 the power factor at the accessing point of mains supply shall meet the requirements of local power supply department;
4 diesel generator system shall be capable of bearing the influence of capacitive load;
5 permissible value (r.m.s. value) of harmonic current component injected into public supply network shall meet the relevant requirement of the current national standard GB/T 14549 Quality of Electric Energy Supply - Harmonics in Public Supply Network.
3.2.3 Where two or more data centers are constructed simultaneously at different areas and they are reserved each other, moreover data real-time transmission service meets continuity requirement, the infrastructure of data center can be configured according to fault tolerant system or redundant system.
3.2.4 Infrastructure of Grade B data center shall be configured according to redundancy requirements. During the operation period of electronic information system, infrastructure shall not lead to interruption of electronic information system operation on account of equipment failure in the range of redundancy capacity.
3.2.5 Infrastructure of Grade C data center shall be configured according to basic requirement. Under normal operation of the infrastructure, electronic information system shall keep operating without interruption.
Contents of GB 50174-2017
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Rating Classification and Required Features
3.1 Rating Classification
3.2 Required Features
4 Site Selection and Equipment Layout
4.1 Site Selection
4.2 Composition
4.3 Equipment Layout
5 Environmental Requirement
5.1 Temperature, Dew Point Temperature and Airborne Particle Concentration
5.2 Noise, Electromagnetic Interference, Vibration and Static Electricity
6 Building and Structure
6.1 General Requirements
6.2 People Flow, Goods Flow, Entrances and Exits
6.3 Retaining Structure Thermal Design and Energy Saving Measure
6.4 Interior Decoration
7 Air Conditioning
7.1 General Requirements
7.2 Thermal Load Calculation
7.3 Airflow Management
7.4 System Design
7.5 Equipment Selection
8 Electrical Systems
8.1 Power Supply and Distribution
8.2 Lighting
8.3 Electrostatic Discharge Protection
8.4 Lightning Protection and Earthing
9 Electromagnetic Shielding
9.1 General Requirements
9.2 Shielding Structure
9.3 Shielding Objects
10 Network and Cabling System
10.1 Network System
10.2 Cabling System
11 Intelligent System
11.1 General Requirements
11.2 Environment and Equipment Monitoring System
11.3 Security System
11.4 Enterprise Command Center
12 Water Supply and Drainage
12.1 General Requirements
12.2 Piping Layout
13 Fire Protection and Safety
13.1 General Requirements
13.2 Fire Prevention and Evacuation
13.3 Fire Protection Facilities
13.4 Safety Measures
Annex A Technical Requirements for Data Center Ratings
Explanation of Wording in This Code
List of Quoted Standards
