DL/T 5221-2016 城市电力电缆线路设计技术规定：英文

发布日期：2016-08-16

实施日期：2016-12-01

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中文目录

英文目录

本书术语

中文目录

Introduction

翻译出版说明

National Energy Administration Announcement

Foreword

1 General Provisions

2 Terms

3 Cable Route

4 Cable Laying

4.1 General Requirements

4.2 Selection of Cable Laying Mode

4.3 Direct Burying

4.4 Cable Duct Laying

4.5 Cable Tunnel Laying

4.6 Cable Trough Laying

4.7 Bridge Laying

4.8 Underwater Laying

4.9 Vertical Laying

4.10 Cable Termination Poles/Towers

4.11 Cable Termination Station

5 Selection of Cable Construction

5.1 General Requirements

5.2 Selection of Insulation Screen，Metal Sheaths，Armors and Outer Sheaths

5.3 Cable Conductors

6 Selection and Configuration of Cable Accessories

6.1 General Requirements

6.2 Types of Cable Terminations and Joints

6.3 Structures and Types of Cable Terminations and Joints

6.4 Cable Terminations Supports

6.5 Overvoltage Protection

7 Grounding of Metal Sheath or Shield Layer

8 Cable Supports and Cleats

9 Fire Fighting Design of Cables

9.1 General Requirements

9.2 Selection of Flame Retardant Cables

9.3 Fire Fighting Design of Cable Raceway and Cable Interlayer of Substations

9.4 Fire Fighting Design of Cable Tunnel，Cable Trough and Cable Shaft

10 Design of Oil Supply System of Selfcontained Oil-filled Cable

11 Environmental Protection

Appendix A Calculation of the Pulling Force and the Side Wall Pressure

Appendix B Calculation of the Length of Cable Duct Working Shaft

Appendix C Lateral Displacement，Thermal Expansion and Contraction and Axial Force of Snake Laying

C.1 Calculation of Lateral Displacement of Snake Laying

C.2 Calculation Formula of Thermal Expansion and Contraction

C.3 Calculation Formula of Axial Force of Snaking Arc

C.4 Calculation of the Number and Installation Positions of Cleats Needed for Vertical Laying of Cables

Appendix D Chemical Stability of the Plastic Sheath

Appendix E Correction Factors of Permissible Continuous Ampacity of Cables Under Different Laying Conditions

Appendix F Average Ground Temperature of Representative Cities in August

Appendix G Calculation of the Oil Demand and Transient Oil Pressure for Oil-filled Cables

G.1 Calculation of the Oil Demand for Oil-filled Cables

G.2 Calculation of Transient Oil Pressure

英文目录

本书术语

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National　Energy　Administration　Announcement

1　General　Provisions

2　Terms

3　Cable　Route

4　Cable　Laying

4.1　General　Requirements

4.2　Selection　of　Cable　Laying　Mode

4.3　Direct　Burying

4.4　Cable　Duct　Laying

4.5　Cable　Tunnel　Laying

4.6　Cable　Trough　Laying

4.7　Bridge　Laying

4.8　Underwater　Laying

4.9　Vertical　Laying

4.10　Cable　Termination　Poles/Towers

4.11　Cable　Termination　Station

5　Selection　of　Cable　Construction

5.1　General　Requirements

5.2　Selection　of　Insulation　Screen，Metal　Sheaths，Armors　and　Outer　Sheaths

5.3　Cable　Conductors

6　Selection　and　Configuration　of　Cable　Accessories

6.1　General　Requirements

6.2　Types　of　Cable　Terminations　and　Joints

6.3　Structures　and　Types　of　Cable　Terminations　and　Joints

6.4　Cable　Terminations　Supports

6.5　Overvoltage　Protection

7　Grounding　of　Metal　Sheath　or　Shield　Layer

8　Cable　Supports　and　Cleats

9　Fire　Fighting　Design　of　Cables

9.1　General　Requirements

9.2　Selection　of　Flame　Retardant　Cables

9.3　Fire　Fighting　Design　of　Cable　Raceway　and　Cable　Interlayer　of　Substations

9.4　Fire　Fighting　Design　of　Cable　Tunnel，Cable　Trough　and　Cable　Shaft

10　Design　of　Oil　Supply　System　of　Selfcontained　Oil-filled　Cable

11　Environmental　Protection

Appendix　A　Calculation　of　the　Pulling　Force　and　the　Side　Wall　Pressure

Appendix　B　Calculation　of　the　Length　of　Cable　Duct　Working　Shaft

Appendix　C　Lateral　Displacement，Thermal　Expansion　and　Contraction　and　Axial　Force　of　Snake　Laying

C.1　Calculation　of　Lateral　Displacement　of　Snake　Laying

C.2　Calculation　Formula　of　Thermal　Expansion　and　Contraction

C.3　Calculation　Formula　of　Axial　Force　of　Snaking　Arc

C.4　Calculation　of　the　Number　and　Installation　Positions　of　Cleats　Needed　for　Vertical　Laying　of　Cables

Appendix　D　Chemical　Stability　of　the　Plastic　Sheath

Appendix　E　Correction　Factors　of　Permissible　Continuous　Ampacity　of　Cables　Under　Different　Laying　Conditions

Appendix　F　Average　Ground　Temperature　of　Representative　Cities　in　August

Appendix　G　Calculation　of　the　Oil　Demand　and　Transient　Oil　Pressure　for　Oil-filled　Cables

G.1　Calculation　of　the　Oil　Demand　for　Oil-filled　Cables

G.2　Calculation　of　Transient　Oil　Pressure