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GB/T 19842-2025Air conditioning units for railbound vehicles (English PDF)

轨道车辆空调机组

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 31, 2025

Implementation date

May 1, 2026

Scope

GB/T 19842-2025 is the English-translated version of 轨道车辆空调机组.

GB/T 19842-2025 is the Chinese standard "Air conditioning units for railbound vehicles". Its scope clause reads: This document specifies the types and basic parameters, technical requirements, test methods, and inspection procedures for air conditioning units in rail vehicles (hereinafter referred to as "units").

Rules, as well as marking, packaging, transportation and storage. This document applies to air conditioners used in railway passenger cars and EMU trains, intercity rail transit vehicles, urban express line vehicles, and urban rail transit vehicles. This is a set of units. Other similar units can be used as a reference.

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Document preview — GB/T 19842-2025

National Standard of the People's Republic of China

ICS: 27.200
Classification: J 73
Replacing: GB/T 19842-2005

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

1.Scope1
2 Normative references1
3.Terms and Definitions2
4.Types and Basic Parameters2
5.Technical Requirements4
6.Test methods8
7 Inspection Rules15
8.Marking, Packaging, Transport and Storage16
Table 1 Test Conditions3
Table 2 Limits of Cooling Energy Efficiency Ratio under Nominal Cooling Conditions5
Table 3 Noise Limits (Sound Pressure Level) for Different Types of Generator Units7
Table 4.Types and Accuracy of Instruments and Meters8
Table 5.Test Condition Tolerances (Average Variation)9
Table 6 Test Condition Tolerances (Maximum Variation)10
Table 7.Tolerances for Operating Condition Readings during Automatic Defrosting Process10
Table 8.Megohmmeter Selection Levels11
Table 9 Dielectric strength test voltage11
Table 10 Dielectric strength test voltage values at different altitudes12
Table 11 Impact withstand voltage test values at different altitudes14
Table 12 Inspection Items15

1 Scope

This document specifies the types and basic parameters, technical requirements, test methods, and inspection procedures for air conditioning units in rail vehicles (hereinafter referred to as "units").

Rules, as well as marking, packaging, transportation and storage.

This document applies to air conditioners used in railway passenger cars and EMU trains, intercity rail transit vehicles, urban express line vehicles, and urban rail transit vehicles.

This is a set of units. Other similar units can be used as a reference.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are listed below.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 191 Packaging and Storage Graphic Symbols

GB/T 311.1-2012 Insulation Coordination Part 1.Definitions, Principles and Rules

GB/T 755 Ratings and Performance of Rotating Electrical Machines

GB 2894-2025 Safety Colors and Safety Signs

GB/T 4208-2017 Degrees of protection provided by enclosures (IP codes)

GB/T 4706.32 Safety of household and similar electrical appliances - Part 32.Particular requirements for heat pumps, air conditioners and dehumidifiers

GB/T 6388 Transport Packaging Receipt and Delivery Marks

GB/T 9237 Safety and Environmental Requirements for Refrigeration Systems and Heat Pumps

GB/T 13306 Nameplates

GB/T 14597 Climatic environmental conditions for electrical products at different altitudes

GB/T 16935.1 Insulation coordination of equipment in low-voltage power supply systems - Part 1.Principles, requirements and tests

GB/T 17758-2023 Unitary Air Conditioners

GB/T 20626.1 Electrical and electronic products for high-altitude environments under special conditions - Part 1.General technical requirements

GB/T 21413.1 Electrical equipment for rail transit locomotives and rolling stock - Part 1.General operating conditions and general rules

GB/T 21562.2-2015 Specifications and Examples for Reliability, Availability, Maintainability and Safety of Rail Transit - Part 2.

Application Guidelines for Security

GB/T 21563 Shock and vibration tests on rail transit locomotives and rolling stock

GB/T 24338.4 Electromagnetic compatibility of rail transit - Part 3-2.Equipment for rolling stock

GB/T 26572 Limits for Restricted Substances in Electrical and Electronic Products

JB/T 4330-1999 Determination of noise from refrigeration and air conditioning equipment

JB/T 7249 Terminology for Refrigeration and Air Conditioning Equipment

TB/T 1484.1 Locomotive and Rolling Stock Cables Part 1.Power and Control Cables

TB/T 1484.2 Locomotive and Rolling Stock Cables Part 2.30 kV Single-Phase Power Cables

TB/T 1802 Test Method for Watertightness of Railway Vehicles

TB/T 2702 Flame retardant requirements for non-metallic materials used in electrical equipment of railway passenger cars

TB/T 3138 Flame Retardant Technical Requirements for Materials Used in Locomotives and Rolling Stock

GB/T 19409 | GB/T 19413 | GB/T 18836 | GB/T 19569 | GB/T 18837 | […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 20 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 311.1-2012 · GB/T 6388 · GB/T 21562.2-2015

Cited by

GB/T 46740-2025Urban rail transit - General technical specification for medium and low speed maglev vehicles

Editions of GB/T 19842

Edition	Title	Revision	Status
GB/T 19842-2025	Air-conditioning units for railbound vehicles	current edition	Current
GB/T 19842-2005	Air-conditioning units for rail bound vehicles	previous edition	In force

This page sells the current edition, GB/T 19842-2025. Earlier editions are listed for reference only.

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