en / iec 62493 - ee.cityu.edu.hkemc/20110528p3.pdf · iec/en 62493 dut operating conditions:...

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Presented By

Dr. KC LEE

Hong Kong Standards & Testing Centre (HKSTC)2011-05-28

EN / IEC 62493

"Assessment of Lighting Equipment related to

Human Exposure to Electromagnetic Fields "

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Background

International Commission on Non-Ionizing Radiation Protection

國際非電離輻射防護委員會（ICNIRP）Direct effects of electromagnetic fields - Cellular and animal studies

電場和磁場的直接影響-細胞和動物研究

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Background

Biological tissue will be affected if it is exposed in a significant EMF environment (induced electric field and current density). The human senses will also be altered.Nerve and neuromuscular stimulation.Damage of EMF to the biological tissue and its irreversibility will increase with the exposure time.The effect of electric and magnetic field to human head, neck and trunk should be limited.

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Background

Under the Low Voltage Directive (LVD)

EN 62233:2008 “Measurement methods for

electromagnetic fields of household appliances and similar apparatus with regard to human exposure”.

In 2011-03-18, “Assessment of Lighting

Equipment related to Human Exposure to Electromagnetic Fields” (EN 62493: 2010) has been listed in the Official Journal of LVD

Directive 2006/95/EC.

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Scope of IEC/EN 62493

Standards Valid Period

StandardsDate of

Publication(DoP)

Date of Withdrawal

(DoW)

Reference of

superseded standard

EN 62493: 2010 2010-11-01 2013-02-01 --

IEC 62493: 2009 2009-12 -- --

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Relevant Lighting Products:

All indoor and/or outdoor lighting equipment for illumination purposes with AC or battery power supply, which include all industrial, residential, public and street lighting.

Independent auxiliaries exclusively for the use with lighting equipment.

Exempted Lighting Products:

Lighting equipment for aircraft and airfields.

Lighting equipment for road vehicles (except lighting usedfor the illumination of passenger compartments in public transport).

Lighting equipment for agriculture.

Lighting equipment for boats/vessels.

Photocopiers, slide projectors.

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The assessment/test consists of :

1. The induced current density for frequencies from 20 kHz to 10 MHz

2. The specific absorption rate (SAR) for frequencies from 100 kHz to 300 MHz around lighting equipment.It simulates the EMF effect measurement of a person near the lighting equipment.

– the “Van der Hoofden” test-head for

item 1.

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Scope of IEC/EN 62493Item 2: The specific absorption rate (SAR)

100 kHz to 300 MHz around lighting equipment.

The product (DUT) fulfils the above requirement when it fulfilsCISPR 15:2005, Amendment 1 (2006):

– § 4.3.1: Disturbance voltage mains terminals in the

frequency range from 20 kHz to 30 MHz;

– § 4.4: Radiated electromagnetic disturbances in the

frequency range from 100 kHz to 30 MHz;

– § 4.4.2: Radiated electromagnetic disturbances in the

frequency range from 30 MHz to 300 MHz;

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IEC/EN 62493General Requirements:

Supply Voltage: +/- 2 % of the maximum rated supply voltage.For Voltage range: +/- 2 % of the minimum and maximum nominal supply voltages.Ambient Temperature: 15 °C to 25 °C.

Test Location: inside a standard Emission Anechoic Chamber.

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IEC/EN 62493DUT Operating Conditions:

Operating conditions for general lighting equipment DUT operating conditions are specified by the manufacturer.Prior to measurement, the lamp(s) shall be operated until stabilization has been reached. Unless otherwise stated by the manufacturer, the following stabilization times shall be observed:

– 15 minutes for fluorescent lamps,– 30 minutes for other discharge lamps.All measurements have to be done with 100 h aged lamps.

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IEC/EN 62493DUT Operating Conditions:

Operating conditions for specific lighting equipment Multiple lamp lighting equipment - all lamps shall be operated simultaneously.Self-contained emergency lighting equipments - it shall be tested in mains-operating mode. No tests are required in the battery-operating mode.Lighting equipment capable of light regulation shall be measured at both the maximum and minimum limit of light regulation.

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IEC/EN 62493Test Equipment:

An electromagnetic interference (EMI) test receiver or spectrum analyser according to CISPR 16-1-1 with the

settings given below table:

Frequency

range

6dB bandwidth according to

CISPR 16-1-1

Measurement

time

Frequency

stepDetector

20 kHz – 150 kHz 200 Hz 100 ms 220 Hz Peak

150 kHz – 10 MHz 9 kHz 20 ms 10 kHz Peak

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IEC/EN 62493 Test Equipment: A “Van der Hoofden” test-head, consists of a conducting sphere with

an outside diameter of Dhead = 210 mm ± 5 mm mounted on an

insulated (e.g. wood, plastic) support and connected via an ordinary wire to a protection network.

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IEC/EN 62493 Test Equipment:

The transfer function of the protection network shall not deviate more than ± 1 dB from the calculated

characteristic.

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IEC/EN 62493 Measurement Set up:

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Insulated support

min. 0.8 m

Ordinary wire 30 cm ± 3 cm

50 Ω coaxial cable

max. 0.2 dB cable loss, d.c. resistance of ≤ 10 Ω

IEC/EN 62493 Measurement Set up:

During the tests no conductive plane or object or human being

should be closer to the lighting equipment than 0.8 m.

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IEC/EN 62493

Measurement distance

• Refers to the measurement distance given in Table A.1 of Annex A unless otherwise specified by the manufacturer.

• Tolerances of the measurement distances are ± 5 % .

• During the tests no conductive plane or object or human being should be closer to the lighting equipment than 0.8 m.

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Measurement distances

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Swimming Pool &

Underwater Lights

Examples of different lighting products

Table Lamps

Wall Lighting equipment

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Suspended Light Equipment

Ceiling / Recessed Lights

Portable Lighting Equipment

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Flood Lights

Road & Street Lights

Stage Lights

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UV / IR Radiation

Equipment

Aquarium Lightings

Plug- in night lights

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Location of test-head vs different DUT examples

Measurements shall only be performed in a direction consistent with that of

the likely exposure of the general public during normal use.

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Practical measurements inside an anechoic chamber

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Measurement results calculation

ICNIRP Exposure Limit

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According to the derivation from Annex D of the standard, (D.2)

can be simplified to:

This is the pass criteria of the result.

Factor F ≤ 0.85

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Software program is being used to capture the data over the

frequency range (20kHz to 10MHz).

Factor F ≤ 0.85

0.02 -20.86 F = 0.12 4.91355E-06 -20.86 0.02 -1.043 10 0.090573 0.000001

0.02022 -21.1 4.73074E-06 -21.1 0.02022 -1.055 10 0.088105 0.000001

0.02044 -21.16 4.65069E-06 -21.16 0.02044 -1.058 10 0.087498 0.000001

0.02066 -21.46 4.44794E-06 -21.46 0.02066 -1.073 10 0.084528 0.000001

0.15 0.78 F = 0.06 1.63751E-05 0.78 0.15 0.039 10 1.093956 0.000001

0.16 2.9 2.0622E-05 2.9 0.16 0.145 10 1.396368 0.000001

0.17 3.82 2.26651E-05 3.82 0.17 0.191 10 1.552387 0.000001

0.18 10.88 5.05941E-05 10.88 0.18 0.544 10 3.499452 0.000001

……

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Conclusion of Compliance Criteria

Lighting equipment, as described in the scope, complies with this standard IEC / EN62493 if it fulfils the following requirements:

CISPR 15:2005, Amendment 1 (2006):– § 4.3.1: Disturbance voltage mains terminals in the

frequency range from 20 kHz to 30 MHz;– § 4.4: Radiated electromagnetic disturbances in the

frequency range from 100 kHz to 30 MHz;– § 4.4.2: Radiated electromagnetic disturbances in the

frequency range from 30 MHz to 300 MHz;

The measured (weighted and summarized) induced current density due to

the electric field in the frequency range 20 kHz to 10 MHz, Factor F does

not exceed 0.85.

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Thank You !

www.stc-group.org

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Other relevant tests for Lighting Equipment

Goniophotometer at Lighting Equipment

Testing Centre of DGSTC

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Other relevant tests for Lighting Equipment

Goniophotometer for Light

Distribution Measurement

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Goniophotometer

Chamber size:

L x W x H

25m x 6m x 6m

en / iec 62493 - ee.cityu.edu.hkemc/20110528p3.pdf · iec/en 62493 dut operating conditions:...

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