Measurement methods for electromagnetic fields of household appliances and similar apparatus with regard to human exposure

Deals with electromagnetic fields up to 300 GHz and defines methods for evaluating the electric field strength and magnetic flux density around household and similar electrical appliances, including the conditions during testing as well as measuring distances and positions. Appliances may incorporate motors, heating elements or their combination, may contain electric or electronic circuitry, and may be powered by the mains, by batteries, or by any other electrical power source. Appliances include such equipment as household electrical appliances, electric tools and electric toys. Appliances not intended for normal household use but which nevertheless may be approached by the public, or may be used by laymen, are within the scope of this standard. This standard includes specific elements to assess human exposure: - definition of sensor; - definition of measuring methods; - definition of operating mode for appliance under test; - definition of measuring distance and position. The measurement methods specified are valid from 10 Hz to 400 kHz. In the frequency range above 400 kHz and below 10 Hz appliances in the scope of this standard are deemed to comply without testing unless otherwise specified in IEC 60335 series.

Verfahren zur Messung der elektromagnetischen Felder von Haushaltgeräten und ähnlichen Elektrogeräten im Hinblick auf die Sicherheit von Personen in elektromagnetischen Feldern

Méthodes de mesures des champs électromagnétiques des appareils électrodomestiques et similaires en relation avec l'exposition humaine

Traite des champs électromagnétiques jusqu'à 300 GHz et elle définit des méthodes pour l'évaluation des amplitudes des champs électriques et des densités de flux magnétique autour des appareils électrodomestiques et similaires, incluant les conditions pendant les essais aussi bien que les distances et les positions de mesures. Les appareils peuvent contenir des moteurs, des éléments chauffants ou une combinaison des deux, des circuits électriques ou électroniques, et peuvent être alimentés par le secteur, par batteries ou par toute autre source d'énergie électrique. Parmi les appareils concernés, figurent des équipements tels que des appareils électrodomestiques, des outils électriques et des jouets électriques. Les appareils non destinés à un usage domestique normal mais qui néanmoins peuvent être approchés par le public, ou peuvent être utilisés par des usagers non avertis, sont compris dans le domaine d'application de la présente norme. Cette norme inclut des éléments spécifiques pour l'évaluation de l'exposition humaine: - définition des sondes; - définition des méthodes de mesure; - définition du mode opératoire pour les appareils en essai; - définition des distances et des positions de mesure. Les méthodes de mesure spécifiées sont valables de 10 Hz à 400 kHz. Dans la gamme de fréquence au-dessus de 400 kHz et au-dessous de 10 Hz, les appareils entrant dans le domaine d'application de cette norme sont jugés être conformes sans essai, sauf mention contraire spécifiée dans la série de normes CEI 60335.

Metode merjenja elektromagnetnih sevanj gospodinjskih in podobnih električnih aparatov z vidika izpostavljenosti ljudi (IEC 62233:2005, spremenjen) (vsebuje popravek AC:2008)

General Information

Status
Published
Publication Date
03-Apr-2008
Withdrawal Date
30-Nov-2012
Current Stage
6060 - Document made available - Publishing
Start Date
04-Apr-2008
Completion Date
04-Apr-2008

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Verfahren zur Messung der elektromagnetischen Felder von Haushaltgeräten und ähnlichen Elektrogeräten im Hinblick auf die Sicherheit von Personen in elektromagnetischen FeldernMéthodes de mesures des champs électromagnétiques des appareils électrodomestiques et similaires en relation avec l'exposition humaineMeasurement methods for electromagnetic fields of household appliances and similar apparatus with regard to human exposure97.030VSORãQRDomestic electrical appliances in generalICS:Ta slovenski standard je istoveten z:EN 62233:2008SIST EN 62233:2008en,de01-julij-2008SIST EN 62233:2008SLOVENSKI
STANDARDSIST EN 50366:2004/A1:2006SIST EN 50366:20041DGRPHãþD

EUROPEAN STANDARD EN 62233 NORME EUROPÉENNE
EUROPÄISCHE NORM April 2008
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2008 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62233:2008 E
ICS 97.030 Supersedes EN 50366:2003 + A1:2006Incorporates corrigendum August 2008
English version
Measurement methods for electromagnetic fields of household appliances and similar apparatus with regard to human exposure (IEC 62233:2005, modified)
Méthodes de mesures des champs électromagnétiques des appareils électrodomestiques et similaires
en relation avec l'exposition humaine (CEI 62233:2005, modifiée)
Verfahren zur Messung
der elektromagnetischen Felder
von Haushaltgeräten und ähnlichen Elektrogeräten im Hinblick
auf die Sicherheit von Personen
in elektromagnetischen Feldern (IEC 62233:2005, modifiziert)
This European Standard was approved by CENELEC on 2007-12-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement
(dop) 2008-12-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow) 2012-12-01 Annex ZA has been added by CENELEC. The contents of the corrigendum of August 2008 have been included in this copy. __________ SIST EN 62233:2008

- 3 - EN 62233:2008 Endorsement notice The text of the International Standard IEC 62233:2005 was approved by CENELEC as a European Standard with agreed common modifications as given below. COMMON MODIFICATIONS Contents p Delete “and limit sets” from the title of Clause 4. p Add: Annex ZA (normative) Normative references to international publications with their corresponding European publications 1 Scope
Add the following note: NOTE The methods are not suitable for comparing the fields of different appliances. 3 Definitions p 3.2.1 Delete “(basic limitations)” in the term. Add: 3.2.Z1 operator distance distance between the surface of the appliance and the closest point of the head or torso of the operator 4 Choice of test method and limit sets p Replace the title by: 4 Choice of test method p Delete the first and third paragraphs. p In the fifth paragraph, replace “alternative test methods” by “simplified test methods”. 5 Measuring methods 5.5.1 General p Delete the second sentence of the first paragraph. SIST EN 62233:2008

Frequency10 Hz 50 Hz 150 kHz 400 kHz 16,0800 Hz43,5Transfer function A 0,21,0
NOTE Logarithmic scales are used for both axes. Figure Z1 - Transfer function The following sequence is used for the measurements: − perform a separate measurement of each coil signal; − apply a weighting to each signal using the transfer function; − square the weighted signals; − add the squared signals; − average the sum; − obtain the square root of the average. The result is the weighted r.m.s. value of the magnetic flux density. SIST EN 62233:2008

- 5 - EN 62233:2008 This procedure is shown schematically in Figure Z2.
Sensorcoil x SquareFilter +Br.m.s.Average√ Transfer function A B x Sensorcoil y SquareFilter Transfer function A B y Sensorcoil z SquareFilter Transfer function A B z
Figure Z2 - Schematic diagram of the reference method
NOTE Different ways that the transfer function can be applied to a time domain signal include: analog filter in an electronic circuit, pre-programmed DSP chip, a signal analyser, or a digital computer calculation with a spreadsheet package or a custom-written program. The actual measured value shall be compared directly with the reference level BRL of the flux density at 50 Hz. With appliances with highly localized fields, this has to be performed after taking the coupling factor ac(r1) given in Annex C into account. The final weighted result, W, can be derived as follows:
RLr.m.s.nBBW= or applying the coupling factor ac(r1)
n1cnc).(WraW= where Wn
weighted result for one measurement; Br.m.s r.m.s. value of the magnetic flux density; BRL reference level of the magnetic flux density at fC0; ac(r1) coupling factor according to Annex C or Table D.3. Wnc
weighted result for one measurement taking the coupling of the inhomogeneous field into account by applying ac(r1). The determined weighted result W shall not exceed the value 1. 5.5.3 Line spectrum evaluation p Delete the paragraph starting with “For drawing a comparison…” just before the last note.
Figures p In Figure 1 replace “5.5.4
Alternative test methods” by “5.5.4
Simplified test methods”. SIST EN 62233:2008

- 7 - EN 62233:2008 Annex A, Test conditions for the measurement of magnetic flux density A.1 General p Delete the second paragraph and the NOTE. A.1.1 Operating condition p Replace the title by: A.1.1 Operating conditions, if not specified in Table A.1 p Replace the last-but one paragraph by: Controls are adjusted to the highest setting. However, pre-set controls are used in the intended position. The measurements are made while the appliance is energized. A.1.2 Measuring distance p Replace the title by: A.1.2 Measuring distance, if not specified in Table A.1 A.1.3 Sensor location p Replace the title by: A.1.3 Sensor location, if not specified in Table A.1 A.2.3 Measuring distance and sensor location p Replace the first two paragraphs and Table A.1 by: NOTE The measuring distances in Table A.1 have been defined based upon the expected location of the operator during normal operation, to protect against effects on central nervous system tissues in the head and trunk of the body. SIST EN 62233:2008

Measuring distance r1 cm Sensor locations Operating conditions Coupling factorac(r1) 1 = 0,1 S/m 8 Hz . 800 Hz a Appliances not mentioned in the table Operator distance All surfaces As specified in EN 55014-1 See Annex C Air cleaners 30 All surfaces Continuously 0,17 Air conditioners 30 Around Continuously. When cooling lowest temperature setting. When heating highest temperature setting 0,18 Battery chargers (including inductive) 30 All surfaces Charging a discharged battery having the highest capacity specified by the manufacturer
0,15 Blankets 0 Top Spread out and laid on a sheet of thermal insulation
0,19 Blenders 30 Around Continuously, no load 0,16 Citrus presses 30 Around Continuously, no load 0,15 Clocks 30 Around Continuously 0,15 Coffee makers 30 Around As specified in 3.1.9 of EN 60335-2-15 0,16 Coffee mills 30 All surfaces As specified in 3.1.9.108 of
EN 60335-2-14 0,15 Convector heaters 30 Around With highest output 0,20 Deep fat fryers 30 Around As specified in 3.1.9 of EN 60335-2-13 0,16 Dental hygiene appliances 0 All surfaces As specified in 3.1.9 of EN 60335-2-52 0,19 Depilators 0 Against cutter Continuously, no load 0,30 Dishwashers 30 Top, front Without dishes in the washing mode and drying mode 0,18 Egg boilers 30 Around As specified in 3.1.9 of EN 60335-2-15 0,15 Electric and electronic controls for track sets 30 All surfaces Continuously 0,17 Facial sauna appliances 10 Top Continuously 0,12 Fans 30 Front Continuously 0,16 Fan heaters 30 Front Continuously, highest heat setting 0,16 Floor polishers 30 All surfaces Continuously without any mechanical load on the polishing brushes 0,19 Food processors 30 Around Continuously without load, highest speed setting 0,17 Food warming cabinets 30 Front Continuously without load, highest heat setting 0,15 SIST EN 62233:2008

- 9 - EN 62233:2008 Type of appliance
Measuring distance r1 cm Sensor locations Operating conditions Coupling factorac(r1) 1 = 0,1 S/m 8 Hz . 800 Hz a Foot warmers 30 Top Continuously without load, highest heat setting 0,15 Gas heating appliances, wall mounted 30 Front, left and right side
Continuously, highest heat setting with pump in operation
0,16 Gas heating appliances, floor standing 30 Front, left and right side
Continuously, highest heat setting with pump in operation
0,20 Gas igniters 30 All surfaces Continuously 0,15 Grills 30 Around Continuously without load, highest heat setting 0,16 Hair clippers 0 Against cutter Continuously without load 0,30 Hairdryers 10 All surfaces Continuously, highest heat setting 0,12 Heat pumps 30 Around Continuously. When cooling lowest temperature setting. When heating highest temperature setting 0,17 Heating mats 30 Top Spread out and laid on a sheet of thermal insulation
0,15 Heating pads 0 Top Spread out and laid on a sheet of thermal insulation
0,14 Hobs 30 Top, front As specified in 3.1.9 of EN 60335-2-6 but with highest setting, each heating unit separately 0,18 Hotplates 30 Around As specified in 3.1.9 of EN 60335-2-9 but with highest setting, each heating unit separately 0,17 Icecream makers 30 Around Continuously without load, lowest temperature setting 0,18 Immersion heaters 30 Around Heating element fully submerged 0,16 Induction hobs and hotplates See A.3.1 See A.3.1 See A.3.2.
Irons 30 All surfaces As specified in 3.1.9 of EN 60335-2-3 0,15 Ironing machines 30 All surfaces As specified in 3.1.9 of EN 60335-2-44 0,19 Juice extractors 30 Around Continuously without load 0,17 Kettles 30 Around Half-filled with water
0,17 Kitchen scales 30 Around Continuously without load 0,14 Knives 30 All surfaces Continuously without load 0,16 Massage appliances 0 Against the massage head Continuously without load, highest speed setting 0,21 SIST EN 62233:2008

Measuring distance r1 cm Sensor locations Operating conditions Coupling factorac(r1) 1 = 0,1 S/m 8 Hz . 800 Hz a Microwave ovens 30 Top, front Continuously with highest
microwave power setting. Conventional heating elements, if available, are operated simultaneously at their highest setting. The load is
...

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