1、 IEC TS 62997 Edition 1.0 2017-06 TECHNICA L SPECIFICA TION Industrial electroheating and electromagnetic processing equipment Ev aluation of hazards caused by magnetic nearfields from 1 Hz to 6 MHz IEC TS 62997:2017-06(en)colourinside THIS PUBLICA TION IS COPYRIGHT PROTECTED Copyright 2017 IEC,Gene
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10、r Service Cent re-webstore.iec.ch/csc If y ou wish to giv e us y our feedback on this publication or need further assistance,please contact the Customer Serv ice Centre:csciec.ch.IEC TS 62997 Edit ion 1.0 2017-06 TECHNICA L SPECIFICA TION Industrial electroheating and electromagnetic processing equi
11、pment Ev aluation of hazards caused by magnetic nearfields from 1 Hz to 6 MHz INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 25.180.10 ISBN 978-2-8322-4449-4 R egist er ed tr ademar k of t he Int er national Electr ot echnical Commission W arning!Make sure that y ou obtained this publication from an
12、authorized distributor.colourinside 2 IEC TS 62997:2017 IEC 2017 CONTENTS FOREWORD.7 INTRODUCTION.9 1 Scope.11 2 Normative references.11 3 Terms,definitions,symbols and abbreviated terms.11 3.1 Terms and definitions.11 3.2 Quantities and units.14 4 Organisation and use of the technical specification
13、.15 5 The basic relationship for determination of the in situ induced electric field.16 6 Requirements related to immediate nerve and muscle reactions.16 6.1 General.16 6.2 Method using the conductor geometry and current restriction(CGCR).17 6.3 Volunteer test method.18 6.3.1 Volunteer basic test me
14、thod.18 6.3.2 Method based on volunteer tests and similarity with pre-existing scenario.19 6.3.3 Method based on volunteer tests,using available elevated conductor current or shorter distance between the conductor and bodypart.19 6.3.4 Method using magnetic nearfield reference levels(RLs).19 7 Requi
15、rements related to body tissue overheating.19 7.1 General.19 7.2 Intermittent conditions with 6 minutes time integration.20 7.3 Intermittent conditions in fingers and hands with shorter integration times.21 8 Calculations and numerical computations of induced E field and SAR by magnetic nearfields:i
16、naccuracies,uncertainties and safety factors.21 8.1 Principles for handling levels of safety general.21 8.2 The C value variations with B field curvature.22 8.3 Location of parts of the body,instrumentation and measurement issues.22 8.4 Handling of inaccuracies of in sit u E field and SAR numerical values.22 8.5 Approaches to compliance.23 8.5.1 General.23 8.5.2 Cases where verification of levels being below the RL is sufficient.23 8.5.3 Cases where only B flux measurements are sufficient.23 8.5
