GB/T 20159.2-2008Classification of environmental conditions -- Guidance for the correlation and transformation of environmental condition classes to the environment tests -- Transportation (English PDF)

Foreword

GB/T 20159 "between the environmental conditions classification Classification of environmental conditions and environmental tests Relationship and Conversion Guide" is currently divided into the following if Cadre points.

--- GB/T 20159.1 Classification of environmental conditions Environmental conditions of the relationship between the classification and environmental testing and conversion guidelines storage;

--- GB/T 20159.2 environmental conditions and the relationship between the free conversion guide transportation Classification of environmental conditions and environmental tests;

--- GB/T 20159.3 between environmental conditions classification Classification of environmental conditions and environmental tests have climate relationship and Conversion Guide Stationary use protective properties;

--- GB/T 20159.4 Classification of environmental conditions between the Classification of environmental conditions and environmental tests the relationship between climate and no conversion guide Stationary use protective properties;

--- GB/T 20159.5 between environmental conditions classification Classification of environmental conditions and environmental tests Relations and ground vehicles Transition Guide Vehicle use;

--- GB/T 20159.6 relationship between environmental conditions classification Classification of environmental conditions and environmental tests and Conversion Guide Marine;

--- GB/T 20159.7 relationship between environmental conditions classification Classification of environmental conditions and environmental testing and conversion guide and carry Non-stationary use;

--- GB/T 20159.8 Classification of environmental conditions and environmental conditions to convert the relationship between the classification and Environmental Testing Guide Introduction;

This is Part 2 GB/T 20159 of.

This section identical with IEC TR60721-4-2:2003 "Classification of environmental conditions. Part 4-5. IEC 60721-3 Environmental conditions in points Between classes and IEC 60068 Environmental testing relations in transport and Transition Guide "(in English).

Taking into account the actual situation in China, this part of the IEC 60721-4-2 made the following editorial changes.

--- "IEC 60721 Part of the present" was changed to "GB/T 20159 in this section";

--- The "Technical Report" to "this Part";

--- In other standards covered in this section, there is a corresponding national standard, the reference of national standards; no national standards for the reference listed ISO standards. Layout Part 2 normative references and IEC TR60721-4-2 different order;

--- Remove the IEC 60721-4-2 foreword;

--- Increase the national standard foreword;

--- For the original IEC referenced in IEC 60068-2-56. 1988 (corresponding to test Cb), due to the merger has now revised to IEC 60068-2-78:2001 (corresponding to test Cab), this section references when referring to adopt appropriate national standard GB/T 2423.3-2006, correspondence Trial for Cab;

--- Within each table after the table name in parentheses narrative level, according to the content GB/T 4798.2 of IEC text narratives Changes and additions;

--- For the mechanical conditions of Table 5, Table 6, Table 7 acceleration spectral density (ASD) unit, IEC original use m2/s3, in this section According to China's relevant mechanical conditions test GB instead (m/s2) 2/Hz, and add the corresponding footnote in Table 5.

Appendix A of this section is an informative annex.

This part of the National Electrical and Electronic Products Environmental conditions and environmental tests for Standardization Technical Committee (SAC/TC8) and focal points.

This section is drafted. Guangzhou Electric Apparatus Research Institute.

1 Scope and purpose

GB/T 20159 in this section is for the relationship between the GB/T 4798.2 Classification of environmental conditions and GB/T 2423 and environmental testing Conversion Guide.

Environment may include many environmental conditions, e.g., climate, chemical and mechanical as well as based on other active substances of biological effects of mechanical should. In this section, only consider the mechanical conditions and climatic conditions.

The purpose of this section is to provide guidance for specifiers and set the table for easy application, easy to form these conditions are interrelated and Conversion.

2 Normative references

The following documents contain provisions which, through reference GB/T 20159 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section.

GB/T 2421-1999 Environmental testing for electric and electronic products - Part 1. General (idt IEC 60068-1. 1988) GB/T 2423.1-2008 Environmental testing for electric and electronic products Part 2. Test methods Test A. Cold (IEC 60068-2-1:1990, IDT) GB/T 2423.2-2008 Environmental testing for electric and electronic products Part 2. Test methods Test B. Dry heat (IEC 60068-2-2. 1974, IDT) GB/T 2423.3-2006 Environmental testing for electric and electronic products Part 2. Test methods - Test Cab. Damp heat test (IEC 60068-2-78:2001, IDT) GB/T 2423.4-2008 Environmental testing for electric and electronic products Part 2. Test methods - Test Db. Damp heat cycle (12h + 12h cycle) (IEC 60068-2-30:2005, IDT) GB/T 2423.5-1995 Environmental testing for electric and electronic products Part 2. Test methods Test Ea and guidance. Shock (IEC 60068-2-27. 1987, IDT) GB/T 2423.6-1995 Environmental testing for electric and electronic products Part 2. Test methods - Test Eb and guidance. Bump (Idt IEC 60068-2-29. 1987) GB/T 2423.7-1995 Environmental testing for electric and electronic products Part 2. Test Ec and guidance. Drop and turn Down (Primarily for equipment - type specimens) (idt IEC 60068-2-31. 1982) GB/T 2423.8-1995 Environmental testing for electric and electronic products Part 2. Test methods Test Ed. Free fall (Idt IEC 60068-2-32:1990) GB/T 2423.10-2008 Environmental testing for electric and electronic products Part 2. Test methods Test Fc. Vibration (sinusoidal) (IEC 60068-2-6:1995, IDT) GB/T 2423.15-1995 Environmental testing for electric and electronic products Part 2. Test methods - Test Ga and guidance. Acceleration, steady state Degree (idt IEC 60068-2-7. 1986) GB/T 2423.21-2008 Environmental testing for electric and electronic products Part 2. Test methods - Test M. Low air pressure (IEC 60068-2-13. 1983, IDT) GB/T 20159.2-2008/IEC TR60721-4-2:2003