1 Scope 1
2 Normative References 2
3 General 6
4 Service Types and Transmission Bandwidth 8
4.1 Service Types of Power System Communication and Their Basic Functional Requirements 8
4.2 Properties of Power System Communication Services and Bearers 16
4.3 Recommended Minimum Number of Channels 22
4.4 Recommended Transmission Rate of Channels 24
4.5 Forecast of Transmission Bandwidth 26
5 Network Organization and Planning for Communication Systems 31
5.1 Design Principles for Power System Communication Networks 31
5.2 Network Organization and Planning 31
6 Optical Fiber Communication 34
6.1 General 34
6.2 Transmission Models 35
6.3 Organization and Station Arrangement of Transmission Systems 36
6.4 Optical Fiber Types and Operating Wavelength 42
6.5 System Interfaces 43
6.6 Performance Indicators of Transmission Systems 46
6.7 Auxiliary Systems 52
6.8 Network Protection and Recovery 56
6.9 Special Optical Fiber Cables for Electric Power Lines 57
6.10 Optical Repeater Station 59
7 Digital Microwave Communication 61
7.1 Plesiochronous Digital Hierarchy(PDH)Microwave Relay Communication 61
7.2 Synchronous Digital Hierarchy(SDH)Microwave Relay Communication 75
7.3 Basic Requirements for the Route Selection of Digital Microwave Relay Communication System 89
7.4 Design Specifications for Digital Interfaces of Relay Protection Information of Microwave Transmission 95
7.5 Design Requirements of Microwave Station 96
8 Power Line Carrier Communication 102
8.1 Transmission Quality Indicators 102
8.2 Organization of Carrier Channels 102
8.3 Noise and Interference 104
8.4 Total Channel Attenuation 106
8.5 Selection of Power Line Carrier Terminal 111
8.6 Type Selection of Coupling Processing Device 112
8.7 Special Provisions for Teleprotection Signals of Power Line Carrier Channel Transmission 114
8.8 Allocation Principles of Power Line Carrier Frequency 115
9 Dispatching SPC Exchange System 117
9.1 Configuration of Dispatching SPC Exchange System 117
9.2 Network Architecture of Switching System 117
9.3 Transmission Performance Requirements for Switching System 119
9.4 Numbering Scheme 120
9.5 Signal Mode and Interface 121
9.6 Type Selection and Capacity Configuration of Switch 121
10 Digital Synchronization Network 124
10.1 General 124
10.2 Network Architecture 124
10.3 Organization of Synchronization Network 126
10.4 Timing Reference Transmission 129
10.5 Synchronization Network Interface 131
10.6 Timing Reference Distribution 132
10.7 Network Management System of Synchronization Network 134
10.8 Application of Synchronization Network 134
11 Communication Power Supply 140
11.1 General 140
11.2 High Frequency Switching Power Supply System for Communication 140
11.3 UPS for Communication 141
11.4 Combined Solar Power Supply System for Communication 142
11.5 Batteries for Communication 143