Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 General Provisions
5 Cable Route
6 Cable Laying Modes
6.1 General Requirements
6.2 Direct Burying
6.3 Cable Duct Laying
6.4 TunneI Laying
6.5 Cable Trough Laying
6.6 Bridge Laying
6.7 Underwater Laying
6.8 Vertical Laying
6.9 Cable Connecting Poles (towers)
6.10 Cable Termination Stations
7 Selection of Cable Configuration
7.1 General Provisions
7.2 Selection of Insulation Shield, Metallic Sheaths, Armors and Oversheaths
7.3 Cable Conductors
8 Selection of Cable Accessories
8. I General Provisions
8.2 Types of Cable Terminations and Joints
8.3 Construction of Cable Terminations and Joints
8.4 Cable Termination Supports
8.5 Overvoltage Protection
9 Design of Oil Supply System of Self-contained Oil-filled Cable
10 Grounding Modes of Metallic Sheath or Shield Layer
11 Selection of Cable Supports and Clamps
12 Process Design of Cable Tunne
12. I General Requirements
12.2 Cable Tunnel Interfaces
12.3 Auxiliary Facilities in Cable Tunne
13 Fire Fighting Design of Cables
13.1 Selection of Flame Retardant Cables
13.2 Fire Fighting Design of the Cable Raceway and Cable Mezzanine of Substation
13.3 Fire Protection Design of Cable Tunnel, Cable Trench and Cable Shaft
Appendix A (Normative) Explanation of Wording in this Rule
Appendix B (Normative) Calculation of the pulling force and the lateral pressure
Appendix C (Informative) Calculation of length of the cable duct manhole
C. I Calculation of the length of the cable duct manhole
Appendix D (Informative) Lateral displacement, thermal expansion, and axial force of snaking arc
D.1 Calculation of the lateral displacement of the snaking arc
D.2 Calculation formula of thermal expansion
D.3 Calculation formula of the axial force of the snaking arc
D.4 Calculation of the number and installation positions of clamps needed for vertical laying of cables
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