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GB/T 42148-2022Railway application—Fixed installations—D.C measurement,control and protection devices (English PDF)

轨道交通地面装置直流保护测控装置

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 30, 2022

Implementation date

July 1, 2023

Scope

GB/T 42148-2022 is the English-translated version of 轨道交通地面装置直流保护测控装置.

GB/T 42148-2022 is the Chinese standard "Railway application—Fixed installations—D.C measurement,control and protection devices". Its scope clause reads: This document specifies the technical requirements, test methods, inspection rules, signs, packages packaging, transport and storage.

This document is applicable to the DC protection measurement and control device of rail transit traction power supply system (hereinafter referred to as "device"). Its clauses include terms and definitions; abbreviations.

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Document preview — GB/T 42148-2022

National Standard of the People's Republic of China

ICS: 29.280
Classification: S 80

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

Preface
1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 Technical requirements
5.1 Working environment conditions
5.2 Environmental conditions for storage and transportation
5.3 Special conditions of use
5.4 Rated electrical parameters
5.5 Accuracy and Variation
5.6 Insulation performance
5.7 Mechanical properties
5.8 Electromagnetic Compatibility
5.9 DC power influence
5.10 Continuous power-on
5.11 Structure and Appearance
5.12 Security Protection
6 Functional requirements
6.1 Basic functional requirements
6.2 Communication function
6.3 Protection function
6.4 Control function requirements
6.5 Functional Requirements for Analog Acquisition
6.6 Functional Requirements for Digital Quantity Acquisition
7 Test method
7.1 Test conditions
7.2 Insulation performance test
7.3 Function test
7.4 Environmental test
7.5 Mechanical performance test
7.6 Electromagnetic compatibility performance test
7.7 DC power supply influence test
7.8 Continuous energization test
7.9 Structural and visual inspection
7.10 Safety protection test
8 Inspection rules
8.1 Inspection classification
8.2 Factory inspection
8.3 Type inspection
8.4 Inspection items
9 Labeling, packaging, transportation and storage
10 Product accompanying documents

1 Scope

This document specifies the technical requirements, test methods, inspection rules, signs, packages packaging, transport and storage.

This document is applicable to the DC protection measurement and control device of rail transit traction power supply system (hereinafter referred to as "device").

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references

For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 4208 enclosure protection level (IP code)

GB/T 7261-2016 Basic test methods for protective relays and automatic safety devices

GB/T 11287-2000 Electrical relays Part 21.Measuring vibrations, shocks, bumps and earthquakes of relays and protective devices

Test part 1.Vibration test (sinusoidal)

GB/T 14537-1993 Measuring relays and protective devices shock and bump test

GB/T 14598.2-2011 Measuring relays and protective devices Part 1.General requirements

GB/T 14598.26-2015 Measuring relays and protective devices - Part 26.Requirements for electromagnetic compatibility

GB/T 14598.27-2017 Measuring relays and protective devices - Part 27.Product safety requirements

GB/T 25890.1 Rail Transit Ground Installation DC Switchgear Part 1.General

GB/T 25890.7-2010 Rail Transit Ground Installations DC Switchgear Part 7-1.Special for DC Traction Power Supply System

Application guide for measurement, control and protection devices

GB/T 25890.8 Rail Transit Ground Installations DC Switchgear Part 7-2.Special Measurement for DC Traction Power Supply System,

Control and protection devices isolate current transducers and other current measuring equipment

GB/T 25890.9 Rail Transit Ground Installations DC Switchgear Part 7-3.Special Measurement for DC Traction Power Supply System,

Control and protection devices isolate voltage transmitters and other voltage measurement equipment

DL/T 478-2013 General Technical Conditions for Relay Protection and Safety Automatic Devices

DL/T 860 (all parts) Electric automation communication network and system

3 Terms and Definitions

The terms and definitions defined in GB/T 25890.1 and DL/T 478-2013 apply to this document.

4 Abbreviations

The following abbreviations apply to this document.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Normative references

DL/T 478-2013 · DL/T 860

Similar standards

GB/T 28427-2026|GB/T 32580.5-2026|GB/T 10411-2025|GB/T 25020.1-2025|GB/T 28429-2025|GB/T 32358-2025

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