This part of IEC 60519 is applicable to equipment using high frequency or microwave energy alone or in combination with other kinds of energy for industrial heating and processing of materials. It is also applicable to HF and MW generators made available to users as separate units. This part is applicable to equipment operating in the frequency range 3 MHz to 300 GHz, with the following limitations. – This document applies to only high frequency dielectric heating and processing as defined in 3.1.103. It does not apply to induction heating, which it is possible to carry out in the lower part of the specified frequency band and is covered by IEC 60519-3, with magnetic field safety aspects addressed in IEC TS 62997:2017, the latter to be replaced by a technical report (TR) or by a revised technical specification (TS). – The ISM centre frequencies for dielectric heating and processing of industrial interest are narrow bands about 6,78 MHz, 13,56 MHz, 27,12 MHz and 40,68 MHz. Different field emission measurement procedures and limiting values are applicable, depending on the processing frequency in the high frequency range 3 to 300 MHz. Specifications are in Annex BB. – This document specifies limits for microwave emission only for the ISM frequencies between 800 MHz and 6 MHz, as specified in Annex CC. For other microwave frequencies the basic restriction and IEC 62311 apply. – The foundations for compliance with emission values are the basic restrictions, referred to in the IEEE\/ANSI C95.1:2019 and Directive 2013\/35\/EU. However, maximum HF processing frequency electric and magnetic field values are taken from the IEEE\/ANSI C95.1:2019 standard, as indicated in Annex BB. – This document is not applicable to: — appliances for household and similar use (covered by e.g. IEC 60335-2-25); — commercial use (covered by IEC 60335-2-90 and IEC 60335-2-110); — laboratory use (covered by IEC 61010-2-010); — medical high frequency equipment and accessories (covered by IEC 60601-2-2). NOTE 101 Since high frequency and microwave tunnel ovens and also some other types of microwave and high frequency equipment are sometimes intended either for commercial, laboratory or industrial use, the following criteria are suitable for determination of the classification as industrial equipment: – commercial equipment is typically designed and planned for series production of many identical units, whereas industrial equipment is typically produced in small series or even as single units. The processed goods are consumed or ready for final use at the end of the heating process. – laboratory heating equipment is for preparing material in a laboratory environment, and the processed material is immediately available for investigations or further processing. Regular production of large quantities of material is not foreseen. – with industrial equipment, the processed goods are not immediately accessible to the end user, and the goods are sometimes not in a final state from the perspective of the end user.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 1 Scope <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 2 Normative references 3 Terms and definitions 3.1 General concepts <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 3.2 Equipment and state of equipment <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 3.3 Parts and accessories 4 Classification and subdivision of equipment and installations 4.1 Classification by processing frequency <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 5 Risk assessment 6 General provisions <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | 7 Protection against hazards from electric shock <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | 8 Protection against hazards from electric or magnetic fields <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 9 Protection against hazards from radiation <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 10 Protection against hazards from thermal influences 11 Protection against hazards from fire Table 101 \u2013 Dimensional requirements for HF\/MW barriers <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | 12 Protection against hazards from fluids 13 Specific requirements for components and subassemblies 14 Control of the installation or equipment <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | 15 Protection against mechanical hazards 16 Protection against hazards resulting from use 17 EMC 18 Verification and testing 19 Information for use <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Annex A (normative)List of significant hazards <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Annex B (normative)Limits to touch currents <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex C (normative)Non coherent optical radiation \u2013 Limits and risk classes <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex D (normative)Electric and magnetic fields <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex E (normative)Surface temperature limits <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Annex F (normative)EH, EPM and fire <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex G (normative)Marking and warning <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Annex H (informative)Guidelines on using this document <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Annex I (informative)Connection with ISO 13577 (all parts) <\/td>\n<\/tr>\n | ||||||
| 37<\/td>\n | Annex J (informative)Requirements specific to the EU and associated countries <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Annex AA (normative)Information for use AA.1 General AA.2 Labelling <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Figures Figure AA.1 \u2013 Examples of warning sign and labels Figure AA.2 \u2013 Labels at open HF applicators and handheld or open MW applicators <\/td>\n<\/tr>\n | ||||||
| 41<\/td>\n | Annex BB (normative)Measurements and evaluations of the high frequencyemission and contact current BB.1 General BB.2 Conditions of equipment operation for measurements BB.3 Evaluation of the HF field characteristics <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | BB.4 Electric, magnetic fields, and contact currents BB.4.1 Electric and magnetic field measurements BB.4.2 Evaluations of |E|\/|H| BB.4.3 Measurements of contact currents <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | BB.5 Limiting values, continuous energising of the processing frequency source BB.6 Limiting values, intermittent energising of the processing frequency source BB.7 Relaxation for processing frequencies up to 41 MHz <\/td>\n<\/tr>\n | ||||||
| 44<\/td>\n | BB.8 Risk classes BB.9 Instrumentation BB.9.1 General BB.9.2 Instruments to be used by manufacturers BB.9.3 Minimum specifications <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | BB.9.4 Explanatory figures <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Figure BB.1 \u2013 Large HF barrier for a conveyorised heating equipment scenario <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Figure BB.2 \u2013 Conditions for a HF plastic welding equipment <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Annex CC (normative)Measurements and evaluations of the microwave emission CC.1 Conditions for measurement CC.2 Measurement details CC.3 Risk classes <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | CC.4 Instrumentation CC.4.1 Primary instrumentation CC.4.2 Microwave leakage instrument minimum specifications <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Figure CC.1 \u2013 Large barrier for conveyorised microwave heating equipment <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | Figure CC.2 \u2013 Small microwave access barrier for conveyorisedmicrowave heating equipment <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Figure CC.3 \u2013 Vertical-only MW barriers for conveyorised microwave heating equipment <\/td>\n<\/tr>\n | ||||||
| 53<\/td>\n | Annex DD (informative)Rationales for the high frequency emission limits and measurements DD.1 The biological effects of HF emissions from 3 MHz to 300 MHz DD.2 Today\u2019s agreed limits for operator safety DD.2.1 Exposure to fields <\/td>\n<\/tr>\n | ||||||
| 54<\/td>\n | DD.2.2 Contact currents DD.3 Differences between the concepts in the cited standards and this document <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | DD.4 Field behaviour DD.4.1 General <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | DD.4.2 Rationales for numerical modelling DD.4.3 Modelling scenarios <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | DD.4.4 External E and H field patterns and coupling phenomena Figure DD.1 \u2013 The overall complete scenario (left) with details <\/td>\n<\/tr>\n | ||||||
| 59<\/td>\n | Figure DD.2 \u2013 Field maxima with linear scaling (six top images)and decibel scaling (six bottom images) <\/td>\n<\/tr>\n | ||||||
| 60<\/td>\n | DD.4.5 Absolute E field values in relation to internal power densities (SAR) Figure DD.3 \u2013 Quiver plots of momentary total fields at the same time phase <\/td>\n<\/tr>\n | ||||||
| 61<\/td>\n | DD.4.6 Discussion \u2013 induced currents Figure DD.4 \u2013 Power density patterns in the body-partsreceiving the highest exposure values <\/td>\n<\/tr>\n | ||||||
| 62<\/td>\n | DD.4.7 Discussion \u2013 low SAR value in the hand in the extremely high E field DD.4.8 Discussion \u2013 relationships between external E and SAR values at 30 MHz Figure DD.5 \u2013 E field comparisons 30\/100 MHz, and 100 MHz field polarisation <\/td>\n<\/tr>\n | ||||||
| 63<\/td>\n | DD.4.9 Comparative E nearfield absorption for other frequencies up to 100 MHz DD.4.10 Modelling under plane wave propagation conditions Figure DD.6 \u2013 SAR maxima at 100 MHz in the scenario with only the body present <\/td>\n<\/tr>\n | ||||||
| 64<\/td>\n | DD.5 Conclusions DD.5.1 Distance between accessible metal parts and the E field probe Table DD.1 \u2013 Maximum power densities in circularly cylindrical muscle objects irradiated by 100 MHz plane waves with the E field parallel to the axis <\/td>\n<\/tr>\n | ||||||
| 65<\/td>\n | DD.5.2 The magnetic field and bodycurrent measurements DD.5.3 The highest SAR and ankle current values DD.5.4 E fields from dielectric heating and processing equipment compared to plane wave irradiation <\/td>\n<\/tr>\n | ||||||
| 66<\/td>\n | Annex EE (informative)Rationales for the microwave barrier andassociated microwave leakage tests EE.1 Standard measurement of microwave emission <\/td>\n<\/tr>\n | ||||||
| 67<\/td>\n | EE.2 Microwave hazards \u2013 SAR basic restriction EE.3 Microwave hazard evaluation \u2013 free space exposure method <\/td>\n<\/tr>\n | ||||||
| 68<\/td>\n | EE.4 Microwave hazards from openings in cavities, and from exit and entrance ports <\/td>\n<\/tr>\n | ||||||
| 69<\/td>\n | EE.5 Time averaging <\/td>\n<\/tr>\n | ||||||
| 70<\/td>\n | EE.6 Conclusions and modifications of the standards for ovens with a cavity door <\/td>\n<\/tr>\n | ||||||
| 71<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Safety in installations for electroheating and electromagnetic processing – Particular requirements for high frequency dielectric and microwave heating and processing equipment<\/b><\/p>\n |