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GB/T 45906.9-2025Substation secondary system - Part 9: Construction specifications (English PDF)

变电站二次系统第9部分：建设规范

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 1, 2025

Implementation date

February 1, 2026

Scope

GB/T 45906.9-2025 is the English-translated version of 变电站二次系统第9部分：建设规范.

GB/T 45906.9-2025 is the Chinese standard "Substation secondary system - Part 9: Construction specifications". Its scope clause reads: This document specifies the overall requirements, design principles, process control and technical requirements for substation secondary system construction.

This document applies to the construction, operation, maintenance and overhaul of substation secondary systems.

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Document preview — GB/T 45906.9-2025

National Standard of the People's Republic of China

ICS: 29.240.10
Classification: F 20

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 General Requirements
6 Design
6.1 General requirements
6.2 System Architecture
6.3 Device Configuration
6.4 Master-Substation Information Interaction
6.5 Secondary circuit requirements
6.6 Power Requirements
6.7 Equipment Layout
7 Installation
7.1 General requirements
7.2 Process Control
7.3 Installation process requirements
8 Debugging
8.1 General requirements
8.2 Process Control
8.3 Debugging Project Requirements
9 Acceptance
9.1 General requirements
9.2 Process Control
9.3 Acceptance Project Requirements

1 Scope

This document specifies the overall requirements, design principles, process control and technical requirements for substation secondary system construction.

This document applies to the construction, operation, maintenance and overhaul of substation secondary systems.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GB/T 2887 General Specification for Computer Sites

GB/T 7261 Basic test methods for relay protection and safety automatic devices

GB 8897.4 Primary batteries Part 4.Safety requirements for lithium batteries

GB/T 14285 Technical Specification for Relay Protection and Safety Automatic Devices

GB/T 17215.211 Electrical measuring equipment (AC) General requirements, tests and test conditions Part 11.Measuring equipment

GB/T 17215.301 Particular requirements for electrical measuring equipment (AC) Part 1.Multifunctional energy meters

GB 20840.7 Transformers Part 7.Electronic voltage transformers

GB 20840.8 Instrument transformers Part 8.Electronic current transformers

GB 23864 Fireproof sealing materials

GB/T 36050 Basic provisions for time synchronization of power systems

GB/T 36283 General technical requirements for secondary compartments of intelligent substations

GB/T 36572 Guidelines for Cybersecurity Protection of Power Monitoring Systems

GB 38755 Guidelines for Safety and Stability of Power Systems

GB 50169 Specification for construction and acceptance of grounding devices for electrical installation projects

GB 50171 Specification for the construction and acceptance of panels, cabinets and secondary circuit wiring for electrical installation projects

GB 50172 Specification for Construction and Acceptance of Storage Batteries for Electrical Installation Engineering

GB 50217 Design Standard for Power Engineering Cables

GB/T 50976 Specification for installation and acceptance of relay protection and secondary circuits

GB/T 51420 Intelligent Substation Project Commissioning and Acceptance Standard

GB/T 45906.1 Substation secondary systems Part 1.General requirements

GB/T 45906.2 Substation secondary systems Part 2.Data and models

GB/T 45906.3 Substation secondary system Part 3.Communication message specification

GB/T 45906.4 Substation secondary systems Part 4.Network security protection

GB/T 45906.5 Substation secondary systems Part 5.Protection, control and related equipment

GB/T 45906.6 Substation secondary systems Part 6.Station monitoring system

GB/T 45906.7 Substation secondary systems Part 7.Centralized monitoring system

GB/T 45906.8 Substation secondary system Part 8.Prevention of electrical operation errors

GB/T 36050 | GB/T 36278 | GB/T 33592 | GB/T 45906.3 | GB/T 45906.2 | GB/T 45906.1 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

GB 20840.7 · GB 20840.8 · GB 50169 · GB 50171 · GB 50172

Cited by

GB/T 45906.1-2025Substation secondary system — Part 1: General requirement

Editions of GB/T 45906.9

Edition	Title	Revision	Status
GB/T 45906.9-2025	Substation secondary system - Part 9: Construction specifications	current edition	Current

This page sells the current edition, GB/T 45906.9-2025. Earlier editions are listed for reference only.

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