GB/T 33601-2017 in English

This standard constructs a naming system for power grid equipment covering all aspects of generation, transmission, transformation, distribution and use, and adopts a hierarchical path naming method to achieve unique identification of equipment. The main innovations include:

• Establish a four-level naming structure of "grid. power station. voltage level. equipment"
• Unify the mapping relationship between Chinese and English equipment naming
• Expand the naming rules of distribution equipment and secondary systems

1. Full path naming rules

Use decimal point" and left slash"/" as separators to construct a naming structure containing 8 types of name items:

1. Grid level: Supports five-level description of country-region-province-city-county
2. Plant and station identification: Power plants need to be marked with the type suffix (plant/field/power station)
3. Voltage level: DC equipment needs to be prefixed with "DC" (e.g. DC500kV)
4. Equipment type: Follow the standard abbreviations in Table 2-Table 5

2. Special treatment of distribution network

Special rules are formulated according to the characteristics of distribution network equipment:

• Pole towers use the #n pole format (e.g.: #003-01 pole)
• Cable joints are marked with the start and end positions (e.g.: #05 cable intermediate joint_#06 cable intermediate joint cable segment)
• Ring main unit uses #n pole format (e.g.: #003-01 pole)
• >geographic name + type (such as: Dunyuanzhou #1 ring main unit)

System transformation path

The existing system needs to establish a naming mapping table to achieve standard conversion. It is recommended to implement it in three stages:

Typical problem handling

Common problems and solutions:

• Multiple lines on the same pole: Establish an association between physical poles and logical numbers
• Mixed-ownership equipment: Determine the grid to which it belongs according to the highest voltage level
• Historical naming conflicts: Adopt the "original number + standard suffix" transition plan

This standard has three major upgrades based on SD240-1987:

1. Scalability: Add new power system elements such as renewable energy power stations and DC equipment
2. Compatibility: Semantic alignment with DL/T 860 (IEC 61850) and CIM models
3. Refinition: Refine the naming of distribution network equipment to the tower level to support distribution automation construction

Future concerns:

• Requirements for unique device identification in digital twin scenarios
• Lightweight naming scheme for IoT terminals
• Method of associating spatial coordinates with GIS systems