2　Normative References

The following normative documents contain provisions which，through reference in this text，constitute part of this standard.For dated references，subsequent amendments（excluding any corrigendum）to，or revision of，any of these publications do not apply.However，parties to agreements based on this rule are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below.For undated references，the latest edition of the normative document applies.

GB 311.1　Insulation Coordination of HV Power Transmission and Transformation Equipment

GB/T 5582　External Insulation Pollution Classes of High-voltage Electric Power Equipment

GB/T 14549　Quality of Electric Energy Supply-Harmonics in Public Supply Network

GB 3096-1993　Standard of Environmental Noise of Urban Area

GB 12348-1990　Standard of Noise at Boundary of Industrial Enterprises

IEC 13498-1992　Terminology for High-voltage Direct Current（HVDC）Transmission

GB/T 15190-1994　Technical Specifications to Determine the Suitable Areas for Environmental Noise of Urban Area

GB/T 16434　Environmental Pollution Classification and External Insulation Selection for High-voltage Transmission Line，Power Plant and Substation

DL/T 605　Guide for Insulation Coordination of HVDC Converter Stations

SDJ 5-1984　Technical Code for Designing High Voltage Electrical Switchgear

IEC TS60071-5　Insulation Co-ordination-Part 5:Procedures for High-voltage Direct Current（HVDC）Converter Stations

IEC 60919-3　Performance of High-voltage Direct Current（HVDC）System Part 1:Steady state Conditions

IEC 60919-3　Performance of High-voltage Direct Current（HVDC）Systems Part 2:Faults and Switching

IEC 60919-3　Performance of High-voltage Direct Current（HVDC）Systems Part 3:Dynamic Conditions

IEC 61803，Ed.1　Determination of Power Losses in High-voltage Direct Current（HVDC）Converter Stations

CIGRE Study Committee 14-DC Links，#14-97（WG 04-21），Protocol for Reporting the Operational Performance of HVDC Transmission Systems