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.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/Z 29328-2012 Specific configuration of power supply and self-emergency power supply for important power users, and the following main technical changes have been made with respect to GB/Z 29328-2012:
——the related contents such as configuration requirements of power supply for important power users are adjusted and improved;
——the related contents such as operation and maintenance requirements of emergency power supply for important power users are supplemented and improved;
——the related contents such as type, technical characteristics and typical configuration modes of emergency power supply are supplemented and updated;
——the categories and scope of important power users are adjusted and improved;
——the important power identification subjects and methods are adjusted and improved.
This standard was proposed by the National Energy Administration.
This standard is under the jurisdiction of SAC/TC 296 National Technical Committee on electricity regulation of Standardization Administration of China.
The previous edition of this standard is as follows:
——GB/Z 29328-2012.
Specific configuration of power supply and self-emergency power supply for important power users
1 Scope
This standard specifies the definition and classification of important power users, and the configuration principles and main technical conditions of power supply and self-emergency power supply for important power users.
This standard is applicable to the specific configuration of power supply and self-emergency power supply for important power users.
This standard may also be referenced to for the configuration of power supply and self-emergency power supply for other power users.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2820.1 Reciprocating internal combustion engine driven alternating current generating sets - Part 1: Application, ratings and performance
GB 50052 Code for design electric power supply systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
protective load
power load required for ensuring the safety of people and property in the power consuming place
Note: the load which will cause one of the following consequences after a power failure is generally deemed to be a protective load:
a) direct personal injury or death;
b) spilling of toxic and harmful substances, thus resulting in large-scale environmental pollution;
c) explosion or fire;
d) large-scale social disorder or serious political impact;
e) major production equipment damage or major direct economic losses.
3.1.2
prime power supply
power supply that can effectively supply power to all loads under normal conditions
3.1.3
standby power supply
power supply that can effectively supply power to all loads or the protective load when the prime power supply fails or is interrupted according to the actual needs of users for the power supply reliability of in terms of safety, business and production
3.1.4
self-emergency power supply
independent power supply that is equipped by the user itself and can reliably supply power to the user's protective load when both the prime and standby power supplies are interrupted
3.1.5
double circuit
two power supply lines providing power to the loads of the same user, which may be from the same bus section of the same power distribution substation
3.1.6
double power supply
two power supply lines providing power to the loads of the same user, which may be respectively from two different power distribution substations or from two bus sections in the same power distribution with different incoming power lines
3.1.7
multiple power supply
more than two power supply lines providing power to the loads of the same user, among which at least two power supply lines are from two different power distribution substations
3.1.8
allowable outage time
maximum outage time that the power user’s protective load can tolerate
3.1.9
non-electrical security measures
non-electrical emergency measures and methods adopted by the users for the purpose of ensuring safety
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
EPS: Emergency Power Supply
UPS: Uninterruptible Power Supply
4 General
4.1 This standard is formulated with a view to guiding the reasonable configuration of power supply and self-emergency power supply for important power users, improving their ability to respond to power emergencies, effectively preventing secondary disasters, and maintaining social public security.
4.2 This standard defines the scope and classification of important power users, and specifies the configuration principles and technical conditions of the power supply for important power users.
4.3 This standard specifies the configuration principles and technical conditions of the self-emergency power supply for important power users, and standardizes the connection, switching, operation and maintenance of self-emergency power supply for important power users.
4.4 The configuration of power supply and self-emergency power supply for important power users shall comply with this standard. For industries that have relevant national standards, these relevant standards may be complied with.
5 Definition and classification of important power users
5.1 Definition of important power users
5.1.1 An important power user refers to a power user that occupies an important position in the social, political, and economic life of a country or a region (city), and may cause personal injury or death, greater environmental pollution, greater political impact, greater economic losses, and serious public disorder in case of power interruption, or a power consuming place with special requirements for power supply reliability. Refer to Annexes A and B for the classification and scope of important power users.
5.1.2 Identification of important power users shall be carried out by the power supply enterprises and power users under the organization of the competent power department of the local people’s government at or above the county level according to the requirements of the Regulations on emergency disposal, investigation and handling of electric power safety accidents.
Foreword II 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 4 General 5 Definition and classification of important power users 5.1 Definition of important power users 5.2 Classification of important power users 6 Configuration of power supply for important power users 6.1 Configuration principles of power supply for important power users 6.2 Technical requirements for configuration of power supply for important power users 7 Configuration of self-emergency power supply for important power users 7.1 Type of self-emergency power supply 7.2 Configuration principles of self-emergency power supply 7.3 Technical requirements for configuration of self-emergency power supply 7.4 Operation of self-emergency power supply Annex A (Informative) Classification of important power users Annex B (Informative) Scope of important power users Annex C (Informative) Typical configuration modes of power supply Annex D (Informative) Typical configuration modes of self-emergency power supply Bibliography
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.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/Z 29328-2012 Specific configuration of power supply and self-emergency power supply for important power users, and the following main technical changes have been made with respect to GB/Z 29328-2012:
——the related contents such as configuration requirements of power supply for important power users are adjusted and improved;
——the related contents such as operation and maintenance requirements of emergency power supply for important power users are supplemented and improved;
——the related contents such as type, technical characteristics and typical configuration modes of emergency power supply are supplemented and updated;
——the categories and scope of important power users are adjusted and improved;
——the important power identification subjects and methods are adjusted and improved.
This standard was proposed by the National Energy Administration.
This standard is under the jurisdiction of SAC/TC 296 National Technical Committee on electricity regulation of Standardization Administration of China.
The previous edition of this standard is as follows:
——GB/Z 29328-2012.
Specific configuration of power supply and self-emergency power supply for important power users
1 Scope
This standard specifies the definition and classification of important power users, and the configuration principles and main technical conditions of power supply and self-emergency power supply for important power users.
This standard is applicable to the specific configuration of power supply and self-emergency power supply for important power users.
This standard may also be referenced to for the configuration of power supply and self-emergency power supply for other power users.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2820.1 Reciprocating internal combustion engine driven alternating current generating sets - Part 1: Application, ratings and performance
GB 50052 Code for design electric power supply systems
3 Terms, definitions and abbreviations
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
protective load
power load required for ensuring the safety of people and property in the power consuming place
Note: the load which will cause one of the following consequences after a power failure is generally deemed to be a protective load:
a) direct personal injury or death;
b) spilling of toxic and harmful substances, thus resulting in large-scale environmental pollution;
c) explosion or fire;
d) large-scale social disorder or serious political impact;
e) major production equipment damage or major direct economic losses.
3.1.2
prime power supply
power supply that can effectively supply power to all loads under normal conditions
3.1.3
standby power supply
power supply that can effectively supply power to all loads or the protective load when the prime power supply fails or is interrupted according to the actual needs of users for the power supply reliability of in terms of safety, business and production
3.1.4
self-emergency power supply
independent power supply that is equipped by the user itself and can reliably supply power to the user's protective load when both the prime and standby power supplies are interrupted
3.1.5
double circuit
two power supply lines providing power to the loads of the same user, which may be from the same bus section of the same power distribution substation
3.1.6
double power supply
two power supply lines providing power to the loads of the same user, which may be respectively from two different power distribution substations or from two bus sections in the same power distribution with different incoming power lines
3.1.7
multiple power supply
more than two power supply lines providing power to the loads of the same user, among which at least two power supply lines are from two different power distribution substations
3.1.8
allowable outage time
maximum outage time that the power user’s protective load can tolerate
3.1.9
non-electrical security measures
non-electrical emergency measures and methods adopted by the users for the purpose of ensuring safety
3.2 Abbreviations
For the purposes of this document, the following abbreviations apply.
EPS: Emergency Power Supply
UPS: Uninterruptible Power Supply
4 General
4.1 This standard is formulated with a view to guiding the reasonable configuration of power supply and self-emergency power supply for important power users, improving their ability to respond to power emergencies, effectively preventing secondary disasters, and maintaining social public security.
4.2 This standard defines the scope and classification of important power users, and specifies the configuration principles and technical conditions of the power supply for important power users.
4.3 This standard specifies the configuration principles and technical conditions of the self-emergency power supply for important power users, and standardizes the connection, switching, operation and maintenance of self-emergency power supply for important power users.
4.4 The configuration of power supply and self-emergency power supply for important power users shall comply with this standard. For industries that have relevant national standards, these relevant standards may be complied with.
5 Definition and classification of important power users
5.1 Definition of important power users
5.1.1 An important power user refers to a power user that occupies an important position in the social, political, and economic life of a country or a region (city), and may cause personal injury or death, greater environmental pollution, greater political impact, greater economic losses, and serious public disorder in case of power interruption, or a power consuming place with special requirements for power supply reliability. Refer to Annexes A and B for the classification and scope of important power users.
5.1.2 Identification of important power users shall be carried out by the power supply enterprises and power users under the organization of the competent power department of the local people’s government at or above the county level according to the requirements of the Regulations on emergency disposal, investigation and handling of electric power safety accidents.
Contents of GB/T 29328-2018
Foreword II
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 General
5 Definition and classification of important power users
5.1 Definition of important power users
5.2 Classification of important power users
6 Configuration of power supply for important power users
6.1 Configuration principles of power supply for important power users
6.2 Technical requirements for configuration of power supply for important power users
7 Configuration of self-emergency power supply for important power users
7.1 Type of self-emergency power supply
7.2 Configuration principles of self-emergency power supply
7.3 Technical requirements for configuration of self-emergency power supply
7.4 Operation of self-emergency power supply
Annex A (Informative) Classification of important power users
Annex B (Informative) Scope of important power users
Annex C (Informative) Typical configuration modes of power supply
Annex D (Informative) Typical configuration modes of self-emergency power supply
Bibliography
