GB/T 21427-2025Special environmental conditions - Technical requirements and test methods for internal combustion engine power station systems in dry heat and desert conditions (English PDF)

Foreword

This document conforms to GB/T 1.1-2020 "Standardization Work Guidelines Part

1.Structure and Drafting Rules of Standardization Documents". Drafting is scheduled. This document replaces GB/T 21427-2008 "Technical Requirements and Tests for Internal Combustion Engine Power Station Systems under Special Environmental Conditions. Hot and Dry Deserts". Compared with GB/T 21427-2008, the main technical changes in the "Methods" are as follows, except for structural adjustments and editorial modifications. --The scope has been changed (see Chapter 1, Chapter 1 of the.2008 edition); --The term "internal combustion engine power station system" has been added (see 3.1); --The "General Provisions" section has been changed to "General Rules" and related requirements have been added (see 4.1,.2008 version 4.1). --Changed the following. "Environmental conditions in hot and dry desert regions", "Conditions for rated output power", and "Conditions for specified output power (with allowable corrections)". Related content (see 4.2.1, 4.2.2, 4.2.3, and 4.2.1, 4.2.2,

4.2.3 in the.2008 edition). --Added definitions for the abbreviations "Data Center Power (DCP)" and "Maximum Power of Small Power Generator Sets (MAX)" (see 4.3). --Changed the content related to "Electrical Specifications" (see 4.5,.2008 version 4.5). --The wording regarding sealing has been changed (see 4.6,.2008 edition of 4.6). --The relevant content regarding "insulation resistance" and "phase sequence" has been changed (see 4.7.2, 4.7.4, and

4.7.4 in the.2008 version). --Added requirements for "illuminance", "emergency shutdown" and "safety protection measures" (see 4.7.5,

4.7.6 and 4.7.7). --The relevant content of "Electrical Protection" and "Mechanical Protection" has been changed (see 4.8.1, 4.8.2, and

4.7.7 in the.2008 version). --Added requirements related to "concentration of hazardous substances", "radio interference", and "smoke opacity" (see 4.10.3, 4.10.4, and 4.10.5). --Added relevant content on "parameter requirements" (see 4.11); --The relevant content of "Structure and Design" has been changed (see 4.12,

4.8 in the.2008 edition). --Change "Quality Assurance" to "Testing Rules" or "Testing Methods" (see Chapters 5 and 6, Chapter 5 in the.2008 edition); --The relevant content on "Packaging, Transport and Storage" has been changed (see Chapter 7, Chapter 6 of the.2008 edition). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the China Electrical Equipment Industry Association. This document was drafted by: Lanzhou Power Vehicle Research Institute Co., Ltd., Saiwat (Shandong) Power Technology Co., Ltd., and Jiangxi Tsinghua. Taihao Sanbo Motor Co., Ltd., Zhejiang Uniway Machinery Co., Ltd., State Grid Jiangsu Electric Power Co., Ltd., and Yacos Electric Power Technology (China) Limited Liability Company, Taihao Power Technology Co., Ltd., Shandong Kangmler Power Group Co., Ltd., Tianjin Boway Power Equipment Co., Ltd., Baoda Power System Co., Ltd., Jiangsu Kunpeng Electric Equipment Co., Ltd., Yangzhou Huadong Power Machinery Co., Ltd., Weichai Power Co., Ltd. company. The main drafters of this document are. Liu Bing, Zhong Shenghua, Liu Shaoming, Xu Hongwei, Sun Tiankui, Chen Guoping, Fu Xuedong, Yan Dong, Zhang Hongli, and Zheng Jianlian. Jing Xuegui, Chen Feng, Wu Ningning, Liu Xiaoliang. The release history of this document and the document it replaces is as follows: --First published in.2008 as GB/T 21427-2008; --This is the first revision. Special environmental conditions, hot and dry desert, for internal combustion engine power plants System technical requirements and test methods

1 Scope

GB/T 21427-2025 is the Chinese national standard covering a generating set in the desert - the derating in air at fifty degrees, the cooling that has nowhere to reject heat, the sand and dust in every filter and bearing, the fuel and oil at temperature and the enclosure that has to keep the sand out while letting the air in. It replaces GB/T 21427-2008, with the plateau standard GB/T 21426-2026. It was issued on 31 December 2025 and has been in force since 1 July 2026, replacing GB/T 21427-2008. The document is under the responsibility of the China Electrical Equipment Industry Association. This page is published from the official record of the 2025 edition; the clause text of a standard this recent is not yet in circulation, and the figures, limits and tables it contains are those of the document itself, delivered in full with the English translation.

This document specifies the technical requirements for internal combustion engine power plant systems under arid desert conditions, as well as the requirements for packaging, transportation, and storage. The corresponding test rules and test methods were established. This document applies to internal combustion engine power plant systems (hereinafter referred to as "power plants") used in hot and dry desert climates.

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 2423.24 Environmental testing - Part

2.Test methods - Test S. Simulated solar radiation on the ground and solar radiation test Test and Climate Aging Test Guidelines

GB/T 2423.61 Environmental testing - Part

3 Terms and Definitions

The terms and definitions defined in GB/T 20625 and JB/T 8194, as well as the following terms and definitions, apply to this document.

5 Generator sets

GB/T 2820.6 Reciprocating internal combustion engine driven alternator sets - Part

6 Test methods

GB/T 2820.9-2024 Reciprocating internal combustion engine driven alternator sets - Part

9 Measurement and evaluation of mechanical vibration

GB/T 6072.1 Performance of reciprocating internal combustion engines - Part

1.Calibration and test methods for power, fuel consumption and oil consumption Additional requirements for general-purpose engines

GB 7258 Technical Conditions for Safe Operation of Motor Vehicles

GB/T 12786 General Technical Conditions for Automated Internal Combustion Engine Power Stations GB/T 13306 Nameplates

GB/T 16273.1 Graphical symbols for equipment - Part