IEC 60068-2-14-2023 环境检测第2-14部分测试-测试N温度变化

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IEC 60068-2-14

Edition 7.0 2023-07

INTERNATIONAL

STANDARD

NORME

INTERNATIONALE

Environmental testing-

Part 2-14:Tests-Test N:Change of temperature

Essais d'environnement-

Partie 2-14:Essais-Essai N:Variation de température

IEC

60068

-2-

14:20

23-

07(en

-fr)

IEC 60068-2-14

Edition 7.0 2023-07

INTERNATIONAL

STANDARD

NORME

INTERNATIONALE

Environmental testing-

Part 2-14:Tests-Test N:Change of temperature

Essais d'environnement-

Partie 2-14:Essais -Essai N:Variation de température

INTERNATIONAL

ELECTROTECHNICAL

COMMISSION

ELECTROTECHNIQUE

INTERNATIONALE

ICS 19.040 ISBN 978-2-8322-7265-7

Warning!Make sure that you obtained this publication from an authorized distributor.

Attention!Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agrée.

⑧Registered trademark of the International Electrotechnical Commission

Marque déposee de la Commission Electrotechnique Internationale

—2— IEC 60068-2-14:2023 ◎IEC 2023

CONTENTS

FOREWORD ...................................................................................................................................................4

INTRODUCTION ........................................................................................................................................... 6

1 Scope........................................................................................................................................................ 7

2 Normative references............................................................................................................................ 7

3 Terms and definition .............................................................................................................................7

4 Symbols ................................................................................................................................................ 8

5 General.................................................................................................................................................... 8

5.1 Field conditions of changing temperature............................................................................ 8

5.2 Design of tests with temperature change............................................................................... 9

5.3 Test parameter............................................................................................................................ 9

5.4 Purpose and choice of the tests ........................................................................................... 10

5.5 Choice of the exposure time to each conditioning temperature......................................10

5.6 Choice of the duration of the transfer time t2....................................................................11

5.7 Applicability limits of change of temperature tests ........................................................... 1

6 Initial and final measurement .......................................................................................................... 12

6.1 General ....................................................................................................................................... 12

6.2 Initial measurement ................................................................................................................ 12

6.3 Final measurements................................................................................................................ 12

7 Test Na: Rapid change of temperature...........................................................................................12

7.1 General description of the test...............................................................................................12

7.2 Testing procedure...................................................................................................................... 12

7.2.1 Testing chamber............................................................................................................... 12

7.2.2 Mounting or supporting of the test specimen ............................................................15

7.2.3 Severities ...........................................................................................................................15

7.2.4 Preconditioning ................................................................................................................ 16

7.2.5 Test cycle .......................................................................................................................... 17

7.3 Recovery .................................................................................................................................... 19

8 Test Nb: Change of temperature with specified rate of change ............................................. 19

8.1 General description of the...te t………………………………………………………………19

8.2 Testing procedure...................................................................................................................... 20

8.2.1 Testing chamber............................................................................................................... 20

8.2.2 Mounting or supporting structure of the test specimen............................................20

8.2.3 Severities ........................................................................................................................ 20

8.2.4 Tolerance ...........................................................................................................................21

8.2.5 Preconditioning................................................................................................................... 2

8.3 Test cycle ...................................................................................................................................22

8.4 Recovery.................................................................................................................................... 23

9 Test Nc: Rapid change of temperature , two-fluid-bath method................................................ 24

9.1 General description of the test.............................................................................................. 24

9.2 Testing procedure...................................................................................................................... 24

9.2.1 Testing equipment............................................................................................................24

9.2.2 Severities .......................................................................................................................... 24

9.2.3 Conditioning .................................................................................................................... 24

9.3 Test cycle ...................................................................................................................................25

9.4 Recovery .................................................................................................................................... 25

10 Information to be given in the test repor........................................................................................ 26

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标签： #环境 #检测 #测试

摘要：

IEC60068-2-14Edition7.02023-07INTERNATIONALSTANDARDNORMEINTERNATIONALEEnvironmentaltesting-Part2-14:Tests-TestN:ChangeoftemperatureEssaisd'environnement-Partie2-14:Essais-EssaiN:VariationdetempératureIEC60068-2-14:2023-07(en-fr)IEC60068-2-14Edition7.02023-07INTERNATIONALSTANDARDNORMEINTERNATIONALEEn...

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IEC 60068-2-14-2023 环境检测第2-14部分测试-测试N温度变化

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