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Household electric direct-acting room heaters - Methods for measuring performance - Part 2: Additional provisions for the measurement of the radiant factor
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GB/T 15470.2-2025
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Basic data Standard ID | GB/T 15470.2-2025 (GB/T15470.2-2025) | Description (Translated English) | Household electric direct-acting room heaters - Methods for measuring performance - Part 2: Additional provisions for the measurement of the radiant factor | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | Y63 | Classification of International Standard | 97.100.10 | Word Count Estimation | 22,241 | Date of Issue | 2025-04-25 | Date of Implementation | 2025-11-01 | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 15470.2-2025: Household electric direct-acting room heaters - Methods for measuring performance - Part 2: Additional provisions for the measurement of the radiant factor ---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.
ICS 97.100.10
CCSY63
National Standard of the People's Republic of China
Household direct-acting electric room heaters
Performance Test Methods Part 2.
Additional provisions for emissivity measurements
(IEC 60675-2.2020,IDT)
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Categories 3
5 Measurement Items 4
6 General conditions for measurement 4
7 Dimensions, mass and connection to the power supply 4
8 Temperature rise of air outlet grid and outer surface 4
9 Temperature rise of the surface around the heater 4
10 Heater heating time 4
11 Indoor temperature stability 4
12 Cooling 4
13 Antifreeze Temperature 4
14 Inrush current 4
15 Heat radiation effect 4
16 Measurement of effective power 5
17 Verify the manufacturer's maximum room temperature 5
Appendix A (Normative) Climate Test Chamber 6
Appendix B (Informative) Information provided by the point of sale 7
Appendix C (Informative) Test Report Format 8
Appendix AA (normative) Determination of radiation coefficient 9
Figure 101 Radiation reference plane 2
Figure 102 Measurement grid 3
Figure AA.1 Design features of a radiometer 12
Figure AA.2 Determination of correlation coefficient for luminous radiant heaters 14
Table 101 Symbol 3
Table AA.1 Lamp heater calibration 13
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is Part 2 of GB/T 15470 "Performance test methods for household direct-acting room electric heaters".
The following parts have been published.
---Performance test method for household direct-acting room electric heaters;
--- Part 2.Additional provisions for emissivity measurement;
--- Part 3.Additional provisions for radiant efficiency measurement.
This document is equivalent to IEC 60675-2.2020 "Performance test methods for household direct-acting room electric heaters Part 2.Radiation
"Supplementary Provisions for Measurement of Emissivity Coefficient".
The following minimal editorial changes were made to this document.
---Fij in formula (AA.3) is corrected from Figure AA.2 to Figure 102.Since there is no example of Fij in Figure AA.2, the correct example is
Figure 102.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Household Electrical Appliances (SAC/TC46).
This document was drafted by. Weikai Testing Technology Co., Ltd., Shenzhen Lianchuang Electric Industrial Co., Ltd., Zhuhai Gree Electric Appliances Co., Ltd.
Company, Zhejiang Quality Science Research Institute, Guangdong Midea Environmental Appliance Manufacturing Co., Ltd., China Electric Science Research Institute Co., Ltd.,
China Academy of Building Research (Beijing) Testing and Certification Co., Ltd. and Weike Certification and Testing Co., Ltd.
The main drafters of this document are. Zhao Qi, Chen Cankun, Huang Shushen, Yao Guanjie, Yang Weixing, Jian Pengfei, Wu Min, Lu Wei, and Chen Qicai.
Introduction
GB/T 15470 "Performance test methods for household direct-acting room electric heaters" aims to standardize direct-acting room electric heaters
The performance testing method is planned to consist of three parts.
---Performance test method for household direct-acting room electric heaters. The purpose is to specify the performance test method for household direct-acting room electric heaters.
performance testing method.
--- Part 2.Additional provisions for the measurement of emissivity. The purpose is to specify the radiation coefficient of household direct-acting room electric heaters.
Number measurement method.
--- Part 3.Additional provisions for the measurement of radiant efficiency. The purpose is to specify the radiant efficiency of household direct-acting room electric heaters.
Rate measurement method.
Household direct-acting electric room heaters
Performance Test Methods Part 2.
Additional provisions for emissivity measurements
1 Scope
This chapter of IEC 60675.1994 is applicable with the following amendments. The first and second paragraphs are replaced by the following.
This document specifies the performance characteristics related to the radiant effect of domestic direct-acting electric room heaters and describes them for the reference of users.
Method for measuring emissivity.
This document applies to the measurement of the emissivity of direct-acting electric room heaters for domestic use.
2 Normative references
Chapter 2 of IEC 60675.1994 is replaced by the following.
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 15470.3-2025 Performance test methods for household direct-acting room electric heaters Part 3.Measurement of radiant efficiency
Additional provisions (IEC 60675-3.2020, IDT)
IEC 60675.1994/AMD1.1998
IEC 60675.1994/AMD2.2018
Note. GB/T 15470-2002 Performance test method for household direct-acting room electric heaters (idtIEC 60675.1994)
3 Terms and definitions
Chapter 3 of IEC 60675.1994 is replaced by the following.
IEC 60675.1994, IEC 60675.1994/AMD1.1998, GB/T 15470.3-2025 and the following terms and
For the purposes of this document, the definitions apply.
ISO and IEC maintain terminology databases used for standardization at the following addresses.
3.101
radiant factor
The ratio of the measured infrared heat output to the measured total energy input, expressed in %.
Note. The emissivity of plate heaters, convection heaters and radiant heaters can be measured.
3.102
Radiation efficiency
The heat flowing into the (test) chamber through radiation exchange between the effective radiation heating surface and the inner surface of the chamber is equal to the heat of the heater in the test chamber.
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