本译本为国家能源局委托水电水利规划设计总院按照有关程序和规定，统一组织翻译的能源行业标准英文版系列译本之一。2019年12月30日，国家能源局以2019年第8号公告予以公布。
本译本是根据中国电力出版社出版的《水力发电厂厂用电设计规程》NB/T 35044-2014翻译的，著作权归国家能源局所有。在使用过程中，如出现异议，以中文版为准。

1 General Provisions
2 Term
3 Service PowerWiring
3.1 Service Power Source
3.2 Voltage ofService Power
3.3 Earthing ofService Power System
3.4 Service Power Connections
3.5 Load Connection and Service Power Supply
3.6 Power Supply forMaintenance
3.7 Power Supply for Fire Extinguishing
4 Short-Circuit Current Calculation for Service
Power System
4.1 High Voltage Service Power System
4.2 Low Voltage Service Power System
5 Selection ofService PowerTransformers
5.1 Statistics ofMaximum Load
5.2 Transformer Capacity
5.3 Transformer Type
5.4 Voltage Regulation and Transformation Ratio
5.5 Impedance
5.6 Loss
6 Electric Motors
6.1 Type.Voltage and Capacity
6.2 Starting Mode
6.3 Voltage Check at Motor Starting
7 Diesel Generator Sets
7.1 Type
7.2 Capacity
8 Selection ofElectricalApparatus and Conductors
8.1 High Voltage System
8.2 Low Voltage System
8.3 SelectionofLowVoltageApparatus
9 Layout of Electric Equipment of Service Power System
9.1 Layout ofTransformers
9.2 Layout ofSwitchgears
9.3 Layout ofDiesel Generator Sets
9.4 Requirements for Civil Works
Appendix A Main Load Characteristics of Service Power
Appendix B Short-Circuit Current Calculation for Low Voltage System
Appendix C Maximum Load Calculation for Service Power
Appendix D Calculation of Service Power Voltage Regulation
Appendix E Starting Voltage Calculation for Motor
Appendix F Capacity Calculation for Diesel Generator Sets
Explanation of Wording in This Specification
List of Quoted Standards