CEM

The CEM laboratory from the University of Liège performs tests on electrical appliances in conformity with the International and European standards. The laboratory has more than 150 industrial references and provides services ranging from the development to the certification of their products in compliance with the European directive 2014/30/EU.

T

he whole measurement system is either driven by software (for fast full-compliant tests) or manually for R&D.

The laboratory is accredited ISO/IEC 17025 (see also the annex).

In addition to compliance tests, we provide :

• consultancy during the R&D process;
• competence on standards;
• pre-compliance tests.

Contact

• Technical contact: V. Beauvois, Ir.
  Phone +32 4 366 37 46 (direct line)
  
• Director: Prof. C. Geuzaine, Dr. Ir.

Equipment under test (EUT) characteristics

Dimensions and weight:

• Table-top EUT: 0,60m x 1m x 1,2m and maximum 200kg ;
• Floor-standing EUT: cylindrical volume of 2m Ø and 2m high and maximum 1000kg.

Power supplies:

• AC 1 phase 50Hz 220-240V 16A;
• AC 3 phase 50Hz 380-400V 32A;
• DC 0-50V 1kW;
• water;
• gas.
• Monitoring:
• video camera;
• audio;
• voltmeter;
• fiber optics connections, coaxial, ...

Non exhaustive list of EUT:

• electromedical apparatus (radio-therapy, ultrasound / microwave equipment, electro-surgery, ...);
• ISM (industrial, scientific and medical equipment);
• household (dryers, refrigerators, ovens, ...) and electrical tools;
• lighting equipment;
• information technology equipment;
• analog & digital radiocommunication equipment (GSM, DECT) and short range devices (SRDs);
• ...

Infrastructure:

• Semi-anechoic chamber 18GHz for 3m tests with single leaf door of 2m x 2.4m (w x h) and a turntable Ø 2m 1000kg;
• Shielded control room;
• Reverberation chamber 200 MHz - 18 GHz.

Equipment:

• EMI receiver / spectrum analyser 20Hz-26GHz;
• signal generator and amplifiers generating electromagnetic fields; up to 20 V/m at 3m distance (minimum 100 V/m in reverberating chamber)
• field probes;
• antenna and accessories (LISN, CDN...);
• electrostatic discharges, burst and surge generators;
• harmonics and flicker analyser;
• magnetic field generator 50Hz / 60Hz / 16Hz 2/3;
• ...

Partners:

Siepel & Hyfral;

Rohde & Schwarz;

EM-Test;

Spitzenberger & Spies;

...

Standards (non exhaustive list)

IEC/EN - Basic and generic standards:

• IEC/EN 61000-6-3 et -4 - EMC - Generic emission standards - Part 3: Residential, commercial and light industry - Part 4: Industrial environment
• IEC/EN 61000-6-1 et -2 - EMC - Generic immunity standards - Part 1: Residential, commercial and light industry - Part 2: Industrial environment IEC/EN - Basic standards
• IEC/EN 61000-3-2 - EMC - Part 3: Limits - Section 2: Limits for harmonic current emissions (I <= 16A)
• IEC/EN 61000-3-3 - EMC - Part 3: Limits - Section 3: Limitation of voltage fluctuation and flicker in low-voltage supply systems for equipment I <= 16A
• IEC/EN 61000-4-2 - EMC - Part 4: Testing and measurement techniques - Section 2: Electrostatic discharge immunity test (ESD)
• IEC/EN 61000-4-3 - EMC - Part 4: Testing and measurement techniques - Section 3: Radiated radio frequency electromagnetic field immunity test
• IEC/EN 61000-4-4 - EMC - Part 4: Testing and measurement techniques - Section 4: Electrical fast transient / burst immunity test
• IEC/EN 61000-4-5 - EMC - Part 4: Testing and measurement techniques - Section 5: Surge immunity requirements
• IEC/EN 61000-4-6 - EMC - Part 4: Testing and measurement techniques - Section 6: Immunity to conducted disturbances, induced by radio frequency fields
• IEC/EN 61000-4-8 - EMC - Part 4: Testing and measurement techniques - Section 8: Power frequency magnetic field immunity test
• IEC/EN 61000-4-9 - EMC - Part 4: Testing and measurement techniques - Section 9: Pulse magnetic field immunity test
• IEC/EN 61000-4-11 - EMC - Part 4: Testing and measurement techniques - Section 11: Voltage dips, short interruptions and voltage variations immunity tests
• IEC/EN 61000-4-17 - EMC - Part 4: Testing and measurement techniques - Section 17: Ripple on d.c. input power port immunity tests
• IEC/EN 61000-4-28 - EMC - Part 4: Testing and measurement techniques - Section 29: Variation of power frequency, immunity tests
• IEC/EN 61000-4-29 - EMC - Part 4: Testing and measurement techniques - Section 29: Voltage dips, short interruptions and voltage variations on d.c. input power port immunity tests

CISPR/IEC/EN - Product standards:

• CISPR 11 / EN 55011 - Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and medical (ISM) radio-frequency equipment
• CISPR 14-1 / EN 55014-1 - Limits and methods of measurement of radio disturbance characteristics of electrical motor-operated and thermal appliances for household and similar purposes, electrical tools and electric apparatus (Remark: excepted measurement of discontinuous disturbances - clicks)
• CISPR 14-2 / EN 55014-2 - Electromagnetic compatibility (EMC) Immunity requirements for household appliances, tools and similar apparatus
• CISPR 15 / EN 55015 - Limits and methods of measurement of radio disturbance characteristics of electrical lighting and similar equipment
• CISPR 22 / EN 55022 - Limits and methods of measurement of radio disturbance characteristics of information technology equipment (ITE)
• CISPR 32 / EN 55032 - Limits and methods of measurement of radio disturbance characteristics of multimedia equipment
• CISPR 24 / EN 55024 - Information technology equipment - Immunity characteristics – Limits and methods of measurement
• IEC/EN 60601-1-2 - Medical electrical equipment Part 1: General requirements for safety Section 2: Collateral standard: Electromagnetic compatibility - Requirements and tests
• IEC/EN 61326-1, EN 50121 series (Railway standards), EN 61547 / CEI 61547, EN 55103-1/2, ...

Military Standards:

• MIL STD 461 (parts)
• RTCA DO 160 (parts)

ETS - ETSI Standards:

• ETS300 279 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for private land mobile radio (PMR) and ancillary equipment (speech and/or non-speech)
• ETS300 339 Radio equipment and systems (RES). General electromagnetic compatibility (EMC) for radio equipment
• ETS300 445 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for wireless microphones and similar radio frequency (RF) audio link equipment
• ETS300 680-1 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for citizen's band (CB) radio and ancillary equipment (speech and/or non-speech). Part 1: Angle-modulated
• ETS300 680-2 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for citizen's band (CB) radio and ancillary equipment (speech and/or non-speech). Part 2: Double side band (DSB) and/or single side band (SSB)
• ETS300 683 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for short-range devices (SRD) operating on frequencies between 9kHz and 25GHz.
• ETS300 684 Radio equipment and systems (RES). Electromagnetic compatibility (EMC) standard for commercially available amateur radio equipment
• ETS300 329 Radio Equipment and Systems (RES) : Electromagnetic compatibility (EMC) for digital enhanced cordless telecommunications (DECT) equipment
• ETS300 342-1 Radio Equipment and Systems (RES) : Electromagnetic compatibility (EMC) for European digital cellular telecommunications system (GSM 900MHz and DCS 1800MHz) Part 1 : Mobile and portable radio and ancillary equipment

References