EMC Laboratory

Testing

Contact

References

Publications

In order to expand the activities in the field of testing, ICMET has set up the first Romanian modern Laboratory for Electromegnetic Compatibility
( EMC ) wich is intended to ensure EMC for electric power equipment and power electronics.

The Lab is the result of a close cooperation between ICMET Craiova and Phsikalisch Technische Bundesanstalt-PTB Braunschweig, Germany.

At present the immunity tests and conducted disturbance measurement performed by this laboratory are accredited by RENAR.

In 2000 it was put into operation the semi-anechoic chamber, the first of this kind in Romania.

Annex to the accreditation certificate

LOVAG Registred Laboratory

Semi-anechoic chamber (SAC) from ICMET Craiova

Technical Characteristics

Immunity according to EN 61000-4-3
In the measuring area
(L x H=1,5 x 1,5 m) uniform field within imposed tolerance limits
(0dB, +6dB) for at least 75% of the area (12 of 16 measuring points).
Measuring distance: 3 m
Provisions of EN 61000-4-3 are guaranteed within the frequency range: 80MHz-18GHz
Radiated disturbances according to
EN 55022: Preconformity

In the "quiet" area (diameter 1m)

30-90MHz NSA: ± 9,5dB
90-200MHz NSA: ± 6,5dB
200-1GHz NSA: ± 4dB
1-18GHz NSA: ± 4dB

Technical Solution

Screened enclosure: construction made of OL 1.5 mm thick sheet welded in neutral atmosphere

Lined with pyramid absorbers made of polyurethane foam impregnated with carbon particles fixed acrylic adhesive resistant at temperatures up to 600 °C (30 sec) and stable in electric fields up to 350 V/m

Geometrical dimensions: 8 m x 4 m x 4 m

Useful chamber dimensions: 6,885 m x 2,680 m x 3,340 m

Ceiling, side walls, wall to the rear of EUT
APM 66 610 mm x 610 mm x 660 mm

Wall to the rear of the antenna
APM 45 610 mm x 610 mm x 455 mm

Chamber corners (plane absorber)
P75 1220 mm x 610 mm x 75 mm

Overall absorber weight : 1500 Kg
Absorber fastening: flameproof adhesive sticking

Absorber reflectivity (dB): according to the table

Frequency	80MHz	100MHz	150MHz	300MHz	500MHz	1GHz	2GHz	8GHz	12GHz	>18GHz
APM45	-1,5	-3	-8	-22	-28	-33	-36	-48	-49	-53
APM66	-6	-8	-12	-24	-30	-40	-45	-50	-50	-53

Pictures


Inside view of semi-anechoic chamber

Door approach detail	Control Room

Immunity Tests

Emission Measurements

List of Equipment and Measuring Instruments within EMC Laboratory

Immunity Tests

Standard	Tests	Description	Technical Data	Scope
ELECTROSTATIC DISCHARGES
EN 61000 - 4 - 2 IEC 61000 - 4 - 2		Electrostatic discharges	8 kV (contact) 15 kV (air)	Immunity of equipment subjected to static electricity discharges from operators directly or to adjacent objects
ACCREDITED BY RENAR
RADIATED DISTURBANCES
EN 61000 - 4 - 3 IEC 61000 - 4 - 3		Radiated electromagnetic energy	10 V / m (d = 3 m) 80 MHz - 3GHz 0 - 100% AM (1 kHz)	Immunity of equipment subjected to radio-frequency electromagnetic fields
ACCREDITED BY RENAR
2004/104/EC ISO 11452-1,2,4,5		Imunitate la radiatii electromagnetice		Subansambluri electrice si electronice auto (ESA)
ACCREDITED BY RENAR
MILD-STD-461E RS101		Imunitate la radiatii electromagnetice		Echipamente si subsisteme electronice destinate echipamentelor militare
ACCREDITED BY RENAR
CONDUCTED DISTURBANCES
EN 61000 - 4 - 4 IEC 61000 - 4 - 4		Electrical fast transient / burst	4 kV max. 5 / 50 ns Impulse Variable frequency	Immunity at transient disturbances, such as those originating from switching transients (interruption of inductive loads, relay contact bounce, etc.)
ACCREDITED BY RENAR
EN 61000 - 4 - 5 IEC 61000 - 4 - 5		Surge immunity tests	4.5 kV/2.25 kA 1.2 / 50 m s 8 / 20 m s Impulse	Immunity to unidirectional surges caused by over-voltages from switching and lightning transients
ACCREDITED BY RENAR
EN 61000 - 4 - 6 IEC 61000 - 4 - 6		Conducted disturbances, induced by radio-electric fields	80 Veff 9 kHz - 80 MHz 80 % AM (1kHz)	Immunity at conducted disturbances, induced by radio-electric fields, coming from intended RF trans-mitters
ACCREDITED BY RENAR
EN 61000 - 4 - 8 IEC 61000 - 4 - 8 EN 61000 - 4 - 9 IEC 61000 - 4 - 9		Power frequency and pulse magnetic fields	50 Hz 1-100 A/m 8/20 m s 1-1000 A/m	Immunity at power frequency and pulse magnetic fields, generated by coils
ACCREDITED BY RENAR
EN 61000 - 4 - 11 IEC 61000 - 4 - 11		Voltage dips, short interruptions and voltage variations	0 - 100 % U_N 10000 ms	Immunity at voltage dips, short interruptions and voltage variations for electric equipment not exceeding 16 A / phase
ACCREDITED BY RENAR
EN 61000 - 4 - 12 IEC 61000 - 4 - 12		Oscilatory waves	- 100kHz/4kV -0,1 and 1MHz/ 2,5kV	Immunity at oscillatory waves for electrical and electronic equipment
In progress
204/104/EC ISO 7637-1,2 ISO DIS 7637-3 IEC 60839-10-1		Imunitate la perturbatii tranzitorii		Subansambluri electrice si electronice auto (ESA)
ACCREDITED BY RENAR
MIL-STD-461E CS 101, 109, 114, 115, 116		Imunitate la perturbatii conduse		Echipamente si subsisteme electronice destinate echipamentelor militare
ACCREDITED BY RENAR

Emission Measurements

Standard	Tests	Description	Technical Data	Scope
CONDUCTED DISTURBANCES
EN 55011 CISPR 11 - IEC		Electromagnetic disturbances at radio-frequency	0,15 - 30 MHz	Measurement of radio-frequency disturbances for industrial, scientific and medical equipment
ACCREDITED BY RENAR
EN 55014 CISPR 14 - IEC		Electromagnetic disturbances at radio-frequency	0,15 - 30 MHz	Measurement of radio-frequency disturbances for motor operated and thermal appliances for household and similar purposes, electric tools, etc.
ACCREDITED BY RENAR
EN 55015 CISPR 15 - IEC		Electromagnetic disturbances at radio-frequency	0,15 - 30 MHz	Measurement of radio-frequency disturbances for electrical lighting and similar equipment
ACCREDITED BY RENAR
EN 55022 CISPR 22 - IEC		Electromagnetic disturbances at radio-frequency	0,15 - 30 MHz	Measurement of radio-frequency disturbances for information technology equipment
ACCREDITED BY RENAR
EN 55014-1 CISPR 14-1- IEC		Discontinous disturbances (clicks)	148,5 kHz - 30 MHz	Measurement of discontinous disturbances forhousehold and similar equipment
ACCREDITED BY RENAR
EN 55015 CISPR 15-IEC		Insertion loss	150 kHz - 1605 kHz	Measurement of insertion loss for electrical lighting and similar equipment
ACCREDITED BY RENAR
EN 55017 CISPR 17-IEC		Insertion loss	10 kHz - 1000 MHz	Measurement of insertion loss of passive radio interference filters
ACCREDITED BY RENAR
EN 61000 - 3 - 2 IEC 61000 - 3 - 2		Harmonics current emmissions	100 Hz - 2 kHz (n=2 - 40)	Measurement of Harmonics Emmisions for non-professional equipment up to 16A/phase
ACCREDITED BY RENAR
2004/104/EC ISO 7637-1,2 EN 55025 EN 55012		Masurare emisii tranzitorii		Subansambluri electrice si electronice auto (ESA)
ACCREDITED BY RENAR
MIL-STD-461E CE 101, 102		Masurare emisii conduse		Echipamente si subsisteme electronice destinate echipamentelor militare
ACCREDITED BY RENAR
EN 61000 - 3 - 3 IEC 61000 - 3 - 3		Voltage fluctuations and flicker emmissions	-Short-term flicker Pst -Long-term flicker Plt -Relative voltage charge dc -Maximum voltage charge dmax	Measurement of voltage fluctuations and flicker for electronic equipment up to 16A/phase
ACCREDITED BY RENAR
RADIATED DISTURBANCES
EN 55011 CISPR 11 - IEC		Electromagnetic disturbances at radio-frequency	0,15 - 1000 MHz	Measurement of electromagnetic disturbances for industrial, scientific and medical equipment
In progress
MIL-STD-461E 6 RE 102,103		Masurare emisii radiate la RF		Echipamente si subsisteme electronice destinate echipamentelor militare
ACCREDITED BY RENAR
EN 55025 EN 55012 2004/104/EC		Masurare emisii radiate		Subansambluri electrice si electronice auto (ESA)
ACCREDITED BY RENAR
2004/40/EC 1999/513/EC		Masurare campuri electromagnetice		Medii industriale statii de transformare statii de distributie , hale etc Medii rezidentiale cladiri birouri,sedii firme etc
ACCREDITED BY RENAR
EN 55014-1 CISPR 14 - 1 - IEC		Electromagnetic disturbances at radio-frequency	30 - 300 MHz	Measurement of electromagnetic disturbance for motor - operated and thermal appliances for household and similar purposes, electric tools etc (disturbance power)
ACCREDITED BY RENAR
EN 55015 CISPR 15 - IEC		Measurements in three directions of magnetic field components	0,09 - 30 MHz	Measurement of electromagnetic disturbance for electrical lighting and similar equipment
ACCREDITED BY RENAR
EN 55022 CISPR 22 - IEC		Electromagnetic disturbances at radio-frequency	30 - 1000 MHz	Measurement of electromagnetic disturbances for information technology equipment
In progress

List of Equipment and Measuring Instruments within EMC Laboratory

Semi Anechoic Chamber 8 x 4 x 4 m ; 3 m Measuring Distance	10 V/m 80 MHz – 1 GHz
Measuring Screened Chamber 4 x 2 x 0,8 m	> 80 dB Shielding Effectiveness
Screened Room 5725 x 2350 x 2625 mm	> 120 dB Shielding Effectiveness
Helmholtz Coils System	2,450mT
Electromagnetic Interference Receiver Type SMV 42, with internal power supply (battery unit)	9 kHz - 2.6 GHz
Artificial Network Type NNB 41	9 kHz - 30 MHz
Absorbing Clamp Type AMZ 41	30 MHz - 1 GHz
Electric Field Meter Type EMR 20	100 kHz - 3GHz
Three-phase Artificial Mains Network Type LT 32/C	9kHz - 30MHz
Magnetic Field Analyser Type EFA 1	5 Hz - 30 kHz
Broadband Hybrid Antenna Type HL 1000	20 MHz - 1 GHz
Signal Generator Type SMY 02	9 kHz – 2.08 GHz
Power Meter Type NRVS	DC - 26.5 GHz
Thermal Power Sensor Type NRV - Z 51	DC - 18 GHz
Dual Directional Coupler Type DC 3002	100 kHz - 1 GHz
Power Amplifier Type 100W1000M1	80 MHz - 1 GHz
Combination Wave Generator Type CWG 4 - 412	50 - 4500 V
Electrical Fast Transient Generator Type EFTG 4502	200 - 4400 V
Electrostatic Discharge Simulator Type ESDC 30	0 - 15 kV
Voltage Interruption Simulator Type VIS 700	0 - 280 V
Generator/Amplifier/RFVoltmeter Type CDG 6000	100 kHz-266MHz
Transfer Field Strength Meter with µ-TEM Cell Type TFS 11	10 MHz-1 GHz
Electromagnetic Field Meter Type EnviroMentor	0-1000 V/m 0,05-100 µT
Digital Oscilloscope Type TDS 524 A	500 MHz
Absorbing Clamp Type F-201	300 MHz-1000 MHz
Click analyzer Type CL 55C	150 kHz, 500 kHz, 1.4MHz, 30 MHz
Loop Antenna Type TLA300	9 kHz-30 MHz
Passive Probe Type HVP1/1000	9 kHz-30 MHz
Spectrum Analyzer Type FSH 3	100 kHz-3 GHz
Digital Multimeter Type Keithley 2000	100 mV-1000 V
Field Generator Type Ref Rad 3000	1 MHz-3 GHz
Flicker & Harmonics Analyzer Type HAR 100-1P	50 Hz-2 kHz
Near Field Sniffer Probes Type HZ 530	0,1 MHz – 1 GHz

Contact:
Phone: 0351 404888; 0351 404889
FAX: 0351 404890
e-mail: cem@icmet.ro

References :

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Publications

A.Marinescu, Fl. Urzica, "Electric Field Calculation in the Measuring area of Semi-anechoic Chamber", EMC Workshop, Cagliari, Italy, May 2000
A.Marinescu, A. Scornea, G.Mihai, I.Dumbrava,"Laboratory for the HF Electromagnetic Field Probes Calibration", International Conference METSIM '2002, Bucharest, June 2002
I.Dumbrava, A.Marinescu, G.Mihai, A. Scornea, "Laboratory for Frequency Magnetic Field Probes Calibration", SICEM 2002, Bucharest, September 2002
A. Marinescu, A. Scornea, "Some Aspects about the Measurement Uncertainties Calculation in EMC", SICEM 2002, Bucharest, September 2002
I. Dumbrava, A. Marinescu, G. Mihai, "Software for Calibration Systems from an EMC Laboratory", SICEM 2002, Bucharest, September 2002
A. Marinescu, A. Scornea, I. Dumbrava, G. Mihai (Romania), J. Glimm, K. Munter, R. Pape (Germany), "Antenna Field Calibration Laboratory for RF Electromagnetic Field Meters", The 2003 IEEE International Symposium on EMC, Istanbul, Turkey, May 2003

A. Marinescu, I.Dumbrava , P.Nicoleanu, "Evaluation of Electric Equipment Conformity Regarding
Current Harmonics and Flicker Level", SICEM 2003, Bucharest, September 2003

A.Vintila, "Construction of Shielded Rooms", SICEM 2003, Bucharest, September 2003

A.Marinescu, F.URZICA, "Numerical Modeling of Antennas Using FDTD", SICEM 2003, Bucharest, September 2003

A.Marinescu,G.Mihai, P.Nicoleanu, “Study of magnetic field distribution in residential areas and methods to decrease population exposure", Scientific Paper Section with international participation Military Technical Academy, 3-4 November 2005, Bucharest

A.Marinescu, G.Mihai, P.Nicoleanu, C.Vargatu, „Artificial Networks Used in Electromagnetic Compatibility ”, SICEM 2005, University „Politehnica” of Bucharest 21 September 2005

A.Marinescu, G.Mihai,P.Nicoleanu, C.Vargatu, "Electromagnetic Compatibility of the Electrical Lighting Equipments”, SICEM 2005, University „Politehnica” of Bucharest 21 September 2005

A.Marinescu, A.Vintila, G.Mihai, "Shielded Room from Panels”, SICEM 2005, University „Politehnica” of Bucharest 21 September 2005