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BS EN IEC 60675-3:2021

BS EN IEC 60675-3:2021

$189.07

Household electric direct-acting room heaters. Methods for measuring performance – Additional provisions for the measurement of the radiation efficiency

Published By Publication Date Number of Pages
BSI 2021 50
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IEC 60675-3:2020 applies to electric direct-acting room heaters. This document defines performance characteristics related to the radiant effect and specifies methods for measuring the radiation efficiency for the information of users. This document is used to measure the radiation efficiency of direct-acting room heaters. This International Standard is to be used in conjunction with IEC 60675:1994, IEC 60675:1994/AMD1:1998 and IEC 60675:1994/AMD2:2018.

PDF Catalog

PDF Pages PDF Title
2 undefined
5 Annex ZA(normative)Normative references to international publications with their corresponding European publications
7 English
CONTENTS
9 FOREWORD
11 1 Scope
2 Normative references
3 Terms, definitions and symbols
14 4 Classification
5 List of measurements
6 General conditions for measurements
7 Dimensions, mass and means of connection to the supply
8 Temperature rises of air-outlet grilles and external surfaces
Table 100 – Symbols used in this document
15 9 Temperature rises of surfaces surrounding the heater
10 Warming-up time of the heater
11 Stability of room temperature
12 Set-back
13 Frost protection temperature
14 Inrush current
15 Effect of radiant heat
15.1 Determination of radiant factor
15.2 Determination of radiation efficiency
16 Measurement of the usable power
17 Verification of the maximum room temperature promoted by the manufacturer
16 Annex A (normative)Climatic test room
17 Annex B (informative)Information provided at point-of-sale
18 Annex C (informative)Test report form
19 Annex AA (informative)Method for measuring the radiation efficiency
AA.1 General
AA.2 Equations
AA.2.1 Radiation efficiency
21 AA.2.2 Dynamic factor
22 AA.3 Classification
AA.3.1 Categories
AA.3.2 Type
AA.3.3 List of measurements and calculations
AA.4 General conditions
AA.4.1 General
AA.4.2 Power stabilizer
AA.4.3 Multimeter
23 AA.4.4 Variac
AA.4.5 Infrared camera
AA.4.6 Maximum size of active radiant heating surfaces
AA.4.7 Heat-reflection devices
AA.4.8 Technical data
24 AA.4.9 Rated power
AA.4.10 Testing chamber
AA.5 Examinee
AA.5.1 Declaration
25 AA.5.2 Mounting devices, temperature control, multi-stage heater settings
AA.5.3 Model series
26 AA.5.4 Multiple active radiant heating surfaces
AA.6 Test method
AA.6.1 Emissivity
AA.6.2 Boundary lines
AA.6.3 Pixel temperature
27 AA.6.4 Positioning
28 Figures
Figure AA.1 – Positioning of a wall-mounted heater andthe infrared camera in the testing chamber
29 Figure AA.2 – Positioning of a ceiling-mounted heater andthe infrared camera in the testing chamber
30 AA.6.5 Steady-state operating condition
Figure AA.3 – Positioning of a floor-standing heater andthe infrared camera in the testing chamber
32 AA.6.6 Calculation of the nominal radiation efficiency
AA.6.7 Nominal heat-up time period
33 AA.6.8 Dynamic factor
AA.6.9 Test method
34 AA.7 Test report
35 AA.8 Verification system
AA.8.1 General
AA.8.2 Purpose of master heaters
AA.8.3 Verification procedure
AA.8.4 Compliance
AA.9 Measuring emissivity by combining temperature reference method and masking tape reference method
AA.9.1 Combining procedure
36 AA.9.2 The temperature reference method
AA.9.3 The masking tape reference method
37 AA.10 Measuring emissivity by using an Ulbricht sphere
AA.10.1 General
38 AA.10.2 Measurement method
Figure AA.4 – Schematics of a FTIR-spectrometer for measuringthe directional-spectral reflectivity of an examinee
39 AA.10.3 Measurement range
AA.10.4 Calculation of thermal emissivity
AA.10.5 Calculation of the hemispherical emissivity
Figure AA.5 – Schematics of the reference measurement ofthe directional-hemispherical spectral reflexivity
40 AA.11 Radiant heat correction factor
41 AA.12 Example of the test report
46 AA.13 Example of model series test report
48 Bibliography

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BS EN IEC 60675-3:2021
$189.07