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DL/T 5218-2012 in English

DL/T 5218-2012 in English

VALID

Technical Code for the Design of 220kV~750kV Substation

  • Issued on:2012-08-23
  • Implemented on:2012-12-01
  • File Format:PDF
  • Delivery:Via email within 10 business days
Price(USD): $680.00
$660.00
Standard No: DL/T 5218-2012
Document status: VALID
Title in English: Technical Code for the Design of 220kV~750kV Substation
Title in Chinese: 220kV~750kV变电站设计技术规程
Language: English
File Format: Electronic (PDF)
Delivery: Via email within 10 business days
Issued on: 2012-08-23
Implemented on: 2012-12-01
Superseding: DL/T 5218-2005 Technical code for designing 220kV~500kV substation
ICS Classification: 27.100-Power stations in general
Professional Classification: DL-Electricity
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本标准主要内容包括总则,术语,站址选择,站区规划与总布置,电气一次,系统及电气二次,土建部分,采暖、通风和空调,给水和排水,消防,环境保护,劳动安全和职业卫生,节能。
本标准适用于交流电压为220kV~750kV变电站(开关站)新建及改、扩建工程的设计。
本规程面向电力行业工程设计、施工人员。


Introduction

Background of Standard Revision and Technological Evolution

This standard replaces DL/T 5218-2005. The main revisions include:

  • The scope of application is extended to 750kV substation
  • Newly added GIS equipment selection requirements
  • Strengthen environmental protection, energy conservation and occupational health chapters
  • Detailed computer monitoring system communication standards (DL/T 860)

Comparison of core design specifications

Project2005 version2012 version
Voltage range220kV~500kV220kV~750kV
Main connection typeDouble busbar section with bypassOne and a half circuit breaker connection is recommended
Seismic requirementsBasic intensity 8 degree construction limitDesign intensity 9 degree construction limit

Key technical points

Electrical primary system design

Main transformer selection: 750kV should adopt single-phase transformer, and the capacity should meet the 70% load no overload requirement

Distribution equipment:Open hard busbars are prohibited in areas with an earthquake resistance of 8 degrees or above. Gas insulated combination appliances

are recommended in dirty areas.

Special requirements for civil engineering

Fire protection distance:The distance between oil-immersed equipment and buildings shall not be less than 5m (see Table 4.2.6 for details)

Seismic structure:The safety level of 330kV~750kV architecture is raised to level one (γ0=1.1)


Implementation suggestions

  1. Wasteland should be given priority in site selection to avoid earthquake fault zones
  2. 750kV distribution equipment should adopt a split-phase medium layout
  3. Video surveillance system needs to be linked with fire alarm
  4. Cable trenches should use double-sided reinforced concrete covers

Sample only — not a preview of DL/T 5218-2012
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