NB/T 11198-2023
Classification and coding rules for three-dimensional design models of power transmission and transformation projects (English Version)
- Standard No.
- NB/T 11198-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- Professional Standard - Energy CN / NB
- Latest
- NB/T 11198-2023
- Introduction
Background of Standard Formulation and Technological Evolution
This standard responds to the requirements of Document No. 58 of National Energy Comprehensive Technology (2019) and is compiled by the Electric Power Planning and Design Institute, marking the entry of digital design of power transmission and transformation projects in my country into the standardization stage. Compared with traditional two-dimensional design, the three-dimensional model coding system can improve design efficiency by more than 40% and reduce construction rework rate by 25%.
Core content architecture
Professional fields Coding levels Character composition Application scenarios Substation engineering System-equipment-components 2 letters + 4 digits Digital transfer of substations Overhead lines Towers-fittings-foundations 3 letters + 3 digits Line corridor optimization Cable lines Channels-Accessories-Monitoring 2 letters + 5 digits Underground pipe network management
Key Technical Specifications
Coding Uniqueness Principle
Taking the 500kV main transformer as an example, its complete coding format is ETB1234:
E-Electrical major (1 digit) | TB-Transformer system (2 digits) | 1234-Equipment serial number (4 digits)Typical application scenarios
After a converter station project adopts this standard:
1. Model reuse rate increased to 78%
2. Design change cycle shortened by 15 working days
Implementation Suggestions
- It is recommended to develop a coding automatic generation tool, refer to Appendix AC Index Table
- New construction projects should reserve 10% coding expansion space
- Establish a mapping relationship with the IEC 61970 standard
Standardization development trend
This standard lays the foundation for BIM-GIS integration and will extend to the direction of digital twins in the future. Attention should be paid to:
1. Compatibility with IoT device coding
2. Artificial intelligence-assisted coding verification technology
NB/T 11198-2023 history
- 2023 NB/T 11198-2023 Classification and coding rules for three-dimensional design models of power transmission and transformation projects
