BS EN IEC 60068-3-7:2020

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Environmental testing – Supporting documentation and guidance. Measurements in temperature chambers for tests A (Cold) and B (Dry heat) (with load)

Published By	Publication Date	Number of Pages
BSI	2020	18

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Description

This part of IEC 60068 specifies a uniform and reproducible method of confirming that temperature test chambers conform to the requirements specified in the climatic test procedures of IEC 60068-2-1 and IEC 60068-2-2, when loaded with either heat-dissipating or non heatdissipating specimens under conditions which take into account air circulation inside the working space of the chamber. This document is intended primarily for users when conducting regular chamber performance monitoring.

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PDF Pages	PDF Title
2	undefined
4	European foreword Endorsement notice
5	Annex ZA (normative) Normative references to international publications with their corresponding European publications
7	English CONTENTS
8	FOREWORD
10	INTRODUCTION
11	1 Scope 2 Normative references 3 Terms and definitions
12	Table 1 – Test conditions Table 2 – Artificial load – Values
13	4 Measuring system 4.1 General description 4.2 Temperature 4.2.1 General 4.2.2 Temperature sensor 4.3 Humidity 4.3.1 General Figure 1 – Examples of artificial loads
14	4.3.2 Humidity sensor 4.4 Wall emissivity 4.5 Air velocity 4.5.1 General 4.5.2 Air velocity sensor 4.5.3 Air velocity sensor response time 4.6 Recording device 5 Determination of temperature performances 5.1 Test area environment 5.2 Chamber loading 5.2.1 General
15	5.2.2 Location of test load 5.3 Installation of temperature sensors 5.3.1 General 5.3.2 Position of temperature sensors 5.3.3 Position of load sensors 6 Test procedures 6.1 Confirmation methods 6.1.1 General 6.1.2 Test without load 6.1.3 Test with load 6.2 Routine monitoring methods
16	7 Evaluation criteria 8 Information to be given in the performance report
17	Bibliography

Additional information

Status	Definitive
Pages	18
Publication Date	2020-09-04
ISBN	978 0 539 02285 8
Standard Number	BS EN IEC 60068-3-7:2020
Title	Environmental testing – Supporting documentation and guidance. Measurements in temperature chambers for tests A (Cold) and B (Dry heat) (with load)
Identical National Standard Of	EN 60068-3-7 Ed. 2.0, IEC 60068-3-7:2020
Replaces	BS EN 60068-3-7:2002
Descriptors	Electronic equipment and components, Electrical equipment, Environmental testing, Temperature-measuring instruments, Temperature measurement, Electrical components
Publisher	BSI
Committee	GEL/104
ICS Codes	29.020 - Electrical engineering in general

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BS EN IEC 60068-3-7:2020

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