1 General Provisions 2 Terms 3 Basic Requirements 3.1 System Composition 3.2 External Power Supply 3.3 MV Power Supply Network 3.4 Substation 3.5 Traction Power Supply 3.6 Power and Lighting 3.7 Harmonic and Reactive Compensation 4 Substation 4.1 Primary Wiring 4.2 Capacity of Equipment 4.3 Room and Equipment Layout 4.4 Auxiliary Power Supply System 4.5 Relay Protection and Measurement 5 Contact Rail 5.1 System Composition 5.2 Structure and Material 5.3 Technical Requirements 6 Cable 6.1 Cable Selection 6.2 Cable Laying 7 Power and Lighting 7.1 General Requirements 7.2 Equipment Room 7.3 Lighting 8 Supervisory Control and Data Acquisition (SCADA) 8.1 General Requirements 8.2 Control Station 8.3 Controlled Station 8.4 Controlled Object 8.5 Function and Technique Indexes 9 Earthing 10 Maintenance of Power Supply Equipment 11 Test and Acceptance 11.1 General Requirements 11.2 Single Equipment Testing 11.3 Joint Testing 11.4 Joint inter-substation Test 11.5 Contact Rail System Testing 11.6 SCADA Commissioning 11.7 Acceptance Explanation of Wording in This Code List of Quoted Standards Addition: Explanation of Provisions