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GB/T 4798.9-2012: Classification of environmental conditions -- Classification of groups of environmental parameters and their severities -- Microclimates inside products
Status: Valid GB/T 4798.9: Evolution and historical versions
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| GB/T 4798.9-2012 | English | 214 |
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Classification of environmental conditions -- Classification of groups of environmental parameters and their severities -- Microclimates inside products
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GB/T 4798.9-2012
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| GB/T 4798.9-1997 | English | 439 |
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Environmental conditions existing in application of electric and electronic products--Microclimates inside products
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GB/T 4798.9-1997
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Basic data | Standard ID | GB/T 4798.9-2012 (GB/T4798.9-2012) | | Description (Translated English) | Classification of environmental conditions -- Classification of groups of environmental parameters and their severities -- Microclimates inside products | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A21 | | Classification of International Standard | 19.020 | | Word Count Estimation | 11,185 | | Older Standard (superseded by this standard) | GB/T 4798.9-1997 | | Quoted Standard | IEC 60721-1-1990; IEC 60721-2-1-1982; IEC 60721-3-0; IEC 60721-3-3; IEC 60721-3-4; IEC 60721-2-1-1982/AMD 1-1987 | | Adopted Standard | IEC 60721-3-9-1993, IDT | | Regulation (derived from) | National Standards Bulletin 2012 No. 28 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the products in the IEC 60721-3-3 or IEC 60721-3-4 climatic conditions of use, its internal components (basic parts, components, and built-in equipment) may encounter a variety of micro- climatic conditions of the grade. Microclima | GB/T 4798.9-2012: Classification of environmental conditions -- Classification of groups of environmental parameters and their severities -- Microclimates inside products
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ICS19.020
A21
National Standards of People's Republic of China
GB/T 4798.9-2012/IEC 60721-3-9.1993
Replacing GB/T 4798.9-1997
Classification of environmental conditions groups of environmental parameters and their classification
Severities microclimate inside the product
(IEC 60721-3-9.1993, Classificationofenvironmentalconditions-
Part 3. Classificationofgroupsofenvironmentalparametersand
theirseverities-Section9. Microclimatesinsideproducts, IDT)
Issued on. 2013-02-01 2012-11-05 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Definitions 1
4 Overview 2
Category 5 grade 2 micro-climatic conditions
6 microclimate level and type code 3
Appendix A (informative) microclimate level graphical representation and Priority 4
Appendix NA (informative) China's national standard and IEC standard correspondence between 7
GB/T 4798.9-2012/IEC 60721-3-9.1993
Foreword
GB/T 4798 standard currently divided into nine sections.
--- GB/T 4798.1 Application of electric and electronic products environmental conditions - Part 1. Storage
--- GB/T 4798.2 Application of electric and electronic products environmental conditions - Part 2. Transport
--- GB/T 4798.3 Application of electric and electronic products environmental conditions - Part 3. Stationary use at weather protected locations
--- GB/T 4798.4 Application of electric and electronic products environmental conditions - Part 4. No fixed workplace climate protection use
--- GB/T 4798.5 Application of electric and electronic products environmental conditions - Part 5. Ground vehicle
--- GB/T 4798.6 Classification of environmental conditions classification groups of environmental parameters and their severities Ship
--- GB/T 4798.7 Application of electric and electronic products environmental conditions - Part 7. Portable and non-stationary use
--- GB/T 4798.9 Classification of environmental conditions classification groups of environmental parameters and their severities microclimate inside the product
--- GB/T 4798.10 electric and electronic products application environment conditions Introduction
This is Part 9 GB/T 4798's.
Rules in this section in accordance with GB/T 1.1-2009 given draft.
This Part replaces GB/T 4798.9-1997 "Environmental conditions for electric and electronic applications microclimate inside the product," and
GB/T 4798.9-1997 compared to the main changes are as follows.
--- Deleting IEC foreword;
--- Added Appendix NA (informative).
This section uses the translation method identical with IEC 60721-3-9.1993 "Classification of environmental conditions - Part 3. Environmental parameters and their severities, etc.
Classification and grading level group Section 9. Product internal micro-climate "version 1 and amendment No. 1 single (1994-12) and the" No. 1 for a single amendment
Errata "(1995), and made the following editorial changes.
--- Deleted IEC 60721-3-9 foreword;
--- Increase the national standard foreword;
--- Added Appendix NA (informative).
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 drafted by. China Electric Apparatus Research Institute Limited.
The main drafters of this section. Huangkai Yun, Xie Jianhua.
This Part replaces the previous release case.
--- GB/T 4798.9-1997.
GB/T 4798.9-2012/IEC 60721-3-9.1993
Classification of environmental conditions groups of environmental parameters and their classification
Severities microclimate inside the product
1 Scope
This section GB/T 4798 provisions of the product under the climatic conditions IEC 60721-3-3 or IEC 60721-3-4 when its internal
Components (basic parts, components, and built-in equipment) level may encounter a variety of micro-climate conditions.
Microclimate parameters of high temperatures and high relative humidity. Some other climate parameters such as low temperature grades of the element may also have attached
Add impact, but not considered in this section.
Taking into account the typical high temperature limit, the provisions of the limited number of micro-climate levels.
Users of this section should be used to meet the intended use of the lowest level.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
IEC 60721-1.1990 Classification of environmental conditions - Part 1. Environmental parameters and their severities (Classificationof
environmentalconditions-Part 1. Environmentalparametersandtheirseverities)
IEC 60721-2-11982, AMD1. 1987 Classification of environmental conditions Part 2. Environmental conditions appearing in nature - Section 1.
Temperature and humidity (Classificationofenvironmentalconditions-Part 2. Environmentalconditionsappearingin
nature-Section1. Temperatureandhumidity)
IEC 60721-3-0 Classification of environmental conditions - Part 3. Environmental conditions and their severities Section 0. Introduction (Classification
ofenvironmentalconditions-Part 3. Classificationofgroupsofenvironmentalparametersandtheir
severities-Section0. Introduction)
IEC 60721-3-3 Classification of environmental conditions Part 3. Environmental conditions and their severities - Section 3. weather protected locations fixed
Use (Classificationofenvironmentalconditions-Part 3-3. Classificationofgroupsofenvironmental
parametersandtheirseverities-Section3. Stationaryuseatweatherprotectedlocations)
IEC 60721-3-4 Classification of environmental conditions - Part 4. Environmental conditions and their severities - Section 4. No fixed workplace climate protection
Use (Classificationofenvironmentalconditions-Part 3. Classificationofgroupsofenvironmentalpa-
rametersandtheirseverities-Section4. Stationaryuseatnon-weatherprotectedlocations)
3 Definitions
In addition to IEC 60721-1.1990 is defined in Chapter 3, the present section also uses the following definitions.
3.1
Microclimate microclimate
Product components installed inside the climatic conditions at here only consider the air temperature and air humidity.
3.2
Microclimate level microclimaticclass
Binned micro-climate, the climate grade (IEC 60721-3-3 or IEC 60721-3-4 regulations), high air temperature rating (see Table 1a))
GB/T 4798.9-2012/IEC 60721-3-9.1993
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