GB/T 23360-2009 English PDF

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GB/T 23360-2009: Method of evaluating the thermal performance of enclosures
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23360-2009	474	Add to Cart	4 days	Method of evaluating the thermal performance of enclosures	Valid

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Basic data

Standard ID: GB/T 23360-2009 (GB/T23360-2009)
Description (Translated English): Method of evaluating the thermal performance of enclosures
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: K05
Classification of International Standard: 31.240
Word Count Estimation: 24,248
Date of Issue: 2009-03-19
Date of Implementation: 2009-12-01
Quoted Standard: GB/T 4797.4-2006; GB/T 19183; GB/T 19290; GB/T 19520
Adopted Standard: IEC 62194-2005, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 3, 2009 (No. 143 overall)
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 provides an estimate in line GB/T 19290 and GB/T 19520 empty indoor hull, and comply with GB/T 19183, empty outdoor enclosure thermal performance. This standard contains the following information about the basis for determining thermal absorption coefficient: chassis design principles, internal heat load, solar radiation. Chassis absorption coefficient is used to establish a cabinet according to the standard of comparison and selection to provide a common evaluation value.

GB/T 23360-2009: Method of evaluating the thermal performance of enclosures

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Method of evaluating the thermal performance of enclosures ICS 31.240 K05 National Standards of People's Republic of China GB/T 23360-2009/IEC 62194.2005 Estimation of thermal properties of the enclosure (IEC 62194.2005, IDT) Posted 2009-03-19 2009-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms, definitions, symbols and abbreviations 1 Definition 3.1 design principles of chassis 1 3.2 Symbols and abbreviations 2 4 to determine the absorption coefficient of Scheme 2 Estimate the heat load 3 5 Environmental conditions 3 6 6.1 outdoor applications 3 App 6.2 4 7 cabinet absorption coefficient of determination 4 7.1 Measurement Configuration 4 7.2 Calculation 5 8 and remarks 5 8.1 Comparison of different chassis designs 5 8.2 enclosure wall by thermal transfer 6 8.3 wall cabinet airflow 6 Results 8.4 single wall casing 7 8.5 Results (simplified method) double-walled enclosure 8 Appendix A (normative) heat transfer rate 10 Geometry Appendix B (informative) solar radiation 11 Examples Appendix C (informative) calculation of single and double wall 13 Annex D (informative) accurate calculation of the double-walled housing iterative method 15 References 19 GB/T 23360-2009/IEC 62194.2005

Foreword

This standard is identical with IEC 62194.2005 "Estimation cabinet thermal characteristics" (in English). This standard is equivalent translation IEC 62194.2005. For ease of use, this standard made the following editorial changes. --- Delete foreword international standards; --- Decimal point "," to. "." Appendix A of this standard is a normative appendix, Appendix B, Appendix C, Appendix D is an informative annex. The standard electrical and electronic equipment by the National Standardization Technical Committee integrated structure (SAC/TC34) and focal points. This standard is drafted by. Port cabinet Ltd. Jiangsu days. Participated in the drafting of this standard. State Grid Electric Power Research Institute, NARI-RELAYS Electric Co., Ltd., the Quartet Electric (Group) Co., Ltd., China Of Technology Co., Ltd. Guodian Nanjing Automation Co., Ltd., ZTE Corporation, Beijing Electrical Machinery Industry Technical and Economic graduate School. The main drafters of this standard. Wuzhen Xiang, Jia Yu, Zhang Yu, Yin Donghai, Zhangkai Guo Tian Heng, Zhang Mingcan, Zhang real, Wu Bei, Wang Wei, Li Jianxia. GB/T 23360-2009/IEC 62194.2005

Introduction

When installing the cabinet with electronic components, since the functions of the electronic device is affected by the ambient temperature, the climatic conditions are very important of. Since the thermal load and solar radiation, the cabinet becomes hot. Because the surface of the heat transfer through the enclosure is not sufficient, you may need climate control unit To maintain tolerable conditions inside the cabinet. For the design of the cabinet, the solar radiation or by estimating the solar constant, or heat Additional load a fixed value. More accurate observations of solar radiation can be more accurate estimate of the thermal characteristics of the chassis, more economical method. Standard environmental conditions existing regulations are. for outdoor GB/T 19183.5 (IEC 61969-3) and EN300019, for households Within GB/T 4798.3 (IEC 60721-3-3) 1), EN300019 and GB/T 18663.1 (IEC 61587-1). Standards related to the size of the outdoor enclosure is GB/T 19183.1 (IEC 61969-1) and GB/T 19183.2 (IEC 61969-2), households Size standards within the enclosure is GB/T 19520.2 (IEC 60297-2), EN300019 and IEC 60917-2. Due to the needs of users and manufacturers must draw heat unified metrics empty chassis control features. This standard establishes a mechanism Shell thermal characteristics estimation method. 1) IEC original mistaken for IEC 60721. GB/T 23360-2009/IEC 62194.2005 Estimation of thermal properties of the enclosure

1 Scope

This standard provides an estimate in line with GB/T 19290 and GB/T 19520 empty indoor housing, and in line with GB/T 19183 of The method of thermal performance of outdoor enclosure empty. This standard contains the following basis for determining the heat absorption coefficient. --- Cabinet design principles; --- Internal heat load; ---Sun radiation. Housing absorption coefficient is used to compare and choose according to the criteria established in this enclosure provides a common evaluation value.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 4797.4-2006 Environmental conditions for electric and electronic products natural solar radiation and temperature (IEC 60721-2-4.2002, IDT) GB/T 19183 (all parts), the mechanical structure of electronic equipment - Outdoor enclosures [IEC 61969 (all parts), IDT] GB/T 19290 (all parts) in the development of mechanical structures for electronic equipment modulus sequence [IEC 60917 (all parts), IDT] GB/T 19520 (all parts), electronic equipment mechanical structure 482.6mm (19in) series of mechanical structure size [IEC 60297 (the Part), IDT] 3 Terms, definitions, symbols and abbreviations Definition 3.1 chassis design principles Case design heat flow impact. 1, define the following types of housing. A single wall; B double wall (with heat insulation/without thermal insulation layer/intramural airflow or no airflow); C single wall sunshade; D has a double-walled visor (with heat insulation/without thermal insulation layer/intramural airflow or no airflow). Figure 1 enclosure type GB/T 23360-2009/IEC 62194.2005 ......

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