This Code states the principles and standards for the design of electric secondary wiring in power plants and substations. It is applicable to the newly-built fossil fuel power plants with the single-unit nominal capacity of 12-600MW and the rated voltage of 35kV-500kV and the newly-built substations with the unit transformer capacity of 5MVA and higher. The extended and reconstructed projects can be implemented referring to this Code.
1. Scope
2. Normative References
3. Terms and Code Numbers
3.1 Terms
3.2 Abbreviations and Code Numbers
4. General Provisions
5. Control Mode
6. Allocation of Control Room and Its Panel (Panel Platform)
6.1 General Provisions
6.2 Allocation of Central Control Room and Network Control Room
6.3 Allocation of Unit Control Rooms
6.4 Screen Allocation of the Control Panel (Panel Platform) and Relay Board
7. Basic Requirements on Secondary Circuit Design
7.1 Routine control system
7.2 Normal signal system
7.3 Routine measurement system
7.4 Alternate current and voltage circuit
7.5 Computer control of the electrical system of the power plant
7.6 The computer control for the network part of the transformer station and power plant
8. Wiring of Installation Units in Control Room
8.1 Generator
8.2 Transformer and Shunt Reactor
8.3 Power Transmission Circuit
8.4 Capacitor Compensation Device
8.5 Bus Bar Equipment
8.6 Station Service Power Source
8.7 Fault Wave Recording Device
9. Selection and Allocation of Secondary Circuit Equipment
9.1 Selection of Control and Signal Equipment
9.2 Protective Equipment of Secondary Circuit
9.3 Mini-bus Bar and Secondary Circuit Label
9.4 Terminal Block
9.5 Control Cable
10. Excitation System
10.1 General Provisions
10.2 Excitation System of the DC Exciter
10.3 Excitation System of AC Exciter
10.4 Static Excitation System
10.5 Backup Excitation System
11. Synchronizing System
12 AC UPS
12.1 System Allocation
12.2 Equipment Allocation
13. Grounding and Anti-interference
13.1 Routine Secondary Circuit and Grounding of Equipment
13.2 Logic Ground of Electric Devices
13.3 Grounding of the Computer System
13.4 Other Anti-interference Measures
Annex A (Normative) Explanations to Wording in This Code
Annex B (Normative) Panel Spacing and Channel Width in the Control Room
Annex C (Normative) Colors of Stimulated Busbar on Control Panel (Panel, Platform)
Annex D (Normative) Generator Transformer Data I/O
Annex E (Normative) Partial Data I/O of Grid in Substations and Power Plants
Annex F (Normative) Color Type of Mini-bus Bar
Annex G (Normative) Mini-bus Bar Symbols and Circuit Labels
Table G1 Mini-bus Bar Symbol and Circuit Labels
Annex H (Normative) Number Labels of Secondary DC Circuit
Annex I (Normative) Number Labels of Secondary AC Circuit
Annex J (Informative) AVR Performances and Performances of Excitation Systems under AVR Control
