Qualification of infrastructures, equipment and subsystems in the nuclear sector

SEPTEN programs including nuclear power plant construction sites, operations linked to EDF's large refit, the EPR project or ITER program, etc., the Emitech Group offers its expertise in environmental testing to offer a range of services dedicated to players in the nuclear industry.

Electromagnetic Compatibility

Emission DC - 40 GHz
One measuring line per room and open area test site

Radiated emission (Measurement at 3 m in Full Anechoic Room or at 3 or 10 m in large semi-anechoic chamber or in open area test site from 30 MHz to 26 GHz)
Conducted emission (from power supply, single phase LISN 10 A, three phase LISN 100 A, three phase LISN 400 A, rail of 1 to 6 meters cable slide bar for disturbing power emission.

Immunity 10 kHz to 6 GHz
One immunity line per room

Radiated immunity (semi anechoic chamber from 27 MHz to 6 GHz or Full Anechoic Room from 80 MHz to 6 GHz)
Conducted immunity (Inducted field strength 10Veff from 150kHz to 230MHz)
Magnetic immunity (Magnetic field immersion method 30A/m_50/60Hz)

Electrical testing
A complete range of facilities for testing according to EN 61000-4-(2, 4, 5, 8, 9, 10, 11, ...) and EN 61000-3-(2 et 3) - EN 61100-3-(11 et 12)

Electrostatic discharge up to 30kV - Electrical Fast Transient / Burst Immunity test: CDN 3 phases 30A, amplitude burst 4.4kV, CDN 3 phases 100A, amplitude burst 4.4kV - Surge immunity test: CDN 3 phases 25A amplitude 6.6 KV, CDN 3 phases 150A amplitude 6.6 KV, Voltage dips, short interruptions, and voltage variations
Flickers and harmonics, Monophase and 3 phases 16 A, Monophase and 3 phases 32A)

Radio (IoT, wireless, etc.)

Open area test sites for mesures at 10m
Full Anechoic Rooms for measurement at 3m test distance

A Faraday room with ferrite tiles and pyramidal absorbers builded to be a full anechoic room can comply the site attenuation of an open area test site.
The emission measurements are equivalent and have the advantage to be also insulated from exterior sources of electromagnetic noise.
We obtain faster measurments in FAR

Large Semi-Anechoic Chambre for measurements at 3 or 10m test distance
Emission measurement equipment up to 40GHz:
- analysers,
- antennae,
- pramplifiers,
- cables,
- etc.
Radiocommunication bench
Analog and digital modulation analysers (GSM)
Protocole analysers
Climatic chambers

Open area test site

Full Anechoic Room

Cage Full Anechoic Room

Semi-Anechoic Chamber

Environmental simulation

Salt spray test chamber

Number: 8
Usable volume: 0.4 to 13 m³
Automated cycles (salt spray, drying, moist heat)

Thermal shock testing chambers

Number: 6
Temperature: -70 to +190 °C
Transfert time: under 10 s
Software control
Usefull dimension (mm): 790 x 740 x 850

Climate chambers

Number: 60
Usefull volume: from 0,1 to 93m³
Temperature range: -70 to +650 °C
Rapid temperature variations: 20 °C/min
Humididy: from 10 to 100 % Hr

Combined environment test chambers

Number: 6
Temperature range: -70 to +150 °C
Rapid temperature variations: 20 °C/min
Humididy: from 20 to 100 % Hr
Software control, remote alarms
Usefull dimension (mm): 1200 x 1200 x 1200

Electrodynamic shakers

Number: 35
Frequency: 3 to 3000 Hz
Force: 7 to 105 kN
Displacement: 300 mm
Table simensions (mm): 1500 x 1500

Hydraulic actuators

Number: 12
Frequency: 0 to 300 Hz
Force: 200 kN
Displacement: 300 mm
Table simensions (mm): 3000 x 3000

Seismic bench

Frequency: 0.1 to 100 Hz
16 acquisition channels
Sinus control, random, shock (S. R. C.) in bi-axis

"Together" configuration

Force: 50kN horizontal and 2*30kN vertical
Displacement: max. 250 mm peak-to-peak horizontal and 100 mm peak-to-peak vertical.
Max. mass: 900 kg
Table: 1100 * 1200mm

"Component" configuration

Force: 50kN horizontal and vertical
Displacement: max. 250 mm peak-to-peak horizontal and vertical
Max. mass:100 kg
Table: 450 * 450mm

Measurement and data acquisition

Capacitive accelerometer sensors, charge, ICP,...
Wireless displacement sensors, LVDT,...
Strain gauges
…

Other tests

Fluid contamination
Sun exposure
Solar rays
Cooling, Icing
Fire testing
Pyrotechnic shocks
Mould and fungus control
Static mechanical testing up to 1500kN

Specific measures

Voltage
Current
Rotation speed
Micro power cuts
Thermal imaging
Laser Doppler Vibrometer
Warping and physical pressures
...

Electrical safety

Essais de sécurité des équipements électriques

Equipments
Types of tests

Air-conditioned rooms
Controlled sources of electrical power (stabilised 50/60 Hz power supplies, generators / converters)
Acquisition units for temperature rise measurements (thermocouples)
Appliances for electrical measurements (oscilloscope, probes, multimeters, leakage currents, etc.)
Appliances for power measurements
Appliances for insulation measurements (dielectric strength meter, insulation strength)
Appliance for ground continuity measurements
Residual lightning impulse generating bay
Transformer splitting machine
Equipment for incandescent wire tests and for flammability tests
Environmental chambers
IP testing equipment
Standardised gauges and templates (test fingers, etc.)
Mechanical testing of electrical enclosures (shock hammers, indentors, etc.)
Calm air chamber (luminaires)
Automated systems and specific test fixtures

Protection against electric shock
Dielectric strength
Temperature rise
Leakage currents
Insulation resistance
Leakage paths and creepage distance
CTI / Tracking
Moisture resistance
Danger from electromagnetic waves
Incandescent wire
Fire resistance
Impact resistance
Drop tests
Fault condition analysis
Liquid ingress protection (IPX1 to X8)
Solid ingress protection (IP1X to 6X)
Protection against external mechanical impacts (IK01 to IK10)
10)

Standards and testing proficiency

Standards and Specifications - SEPTEN Programs - Category Equipment K2, K3 ou K3ad

ENSE070084 ind A (EDF document) – Qualification of electrical equipment under accident conditions
CRT 91.C. 112 (EDF document) – Material seismic resistance
RCC-E Edition 2012 (AFCEN document) – Règles de Conception et de Construction des matériels Electriques des îlots nucléaires et son cahier de données de projet associé.
EN 61000-4-X in force (European standard) - EMC: all standards of the current series + ENSECC060193
EN 60068-2-30 March 2006 (European standard) - Db tests: Wet heat cyclic test
EN 60068-2-1 April 2007 (European standard) - Tests A: cold
EN 60068-2-2 November 2007 (European standard) - Tests B: dry heat
EN 60068-2-14 September 2009 (European standard) - Tests N: temperature variation
EN 60068-2-6 April 2008 (European standard) - Fc test: vibrations (sinusoidal)
EN 60068-2-2-27 July 2009 (European standard) - Ea tests and guide: shocks
EN 60068-2-11 of 1999 (European standard) - test Ka: salt fog
EN 61000-6-4 of March 2007 (European Standard) - EMC - Emission standard for industrial environments

Standards and specifications complementary to the ITER project

IEC 61000-4-9: Impulse magnetic field immunity test
IEC 61000-4-10: Oscillatory magnetic field immunity test
IEC 61000-4-16: Common-mode interference immunity test of the frequency range 0Hz to 150 Hz
ITER_D_43QDHR (MIL- STD 461F CE101/2): Emission measurement conducted in the frequency range 30 Hz to 30MHz
ITER 98JL4W: Static magnetic field (DC) immunity test

Tests required by standards and specifications achievable within the Emitech Group

Dielectric strength test
Measurement of insulation resistance
Tests to assess behaviour over time
- Thermal ageing test
- Dry heat test
- Cold test
- Testing of rapid temperature variations
- Mechanical vibration test
- Mechanical shock resistance test
- Wet heat cyclic test
- Salt spray test
Electromagnetic Compatibility (EMC) Tests
- Radiated emission / conducted emission
- Electrostatic discharge immunity
- RF field immunity > 33 V/m
- Shock wave immunity
- Immunity to conducted disturbances
- Magnetic field immunity at mains frequency
- Impulse magnetic field immunity
- Short cuts
- Dampened oscillatory waves
- Common mode drive disturbance common mode at mains frequency
- Oscillatory wave immunity
- DC static magnetic field immunity (ITER specific)
Seismic testing

Outstanding skills

180 test campaigns conducted simultaneously

Possibility of carrying out several complete qualifications simultaneously (Environmental simulations, EMC, seismic,...)

An exceptional grouping of test facilities

Test facilities in complementary fields with the required dimensional capacities:

Electromagnetic compatibility (system cages)
Environmental test facilities (vibration assemblies, enclosures, etc.)
Seismic benches

Nuclear Qualifications Management Process

Drafting of the TEE (Test Execution Procedure)
Advanced planning tool
Short planning times
Availability rate of means > 95%

Availability of numerous easements

Power supply (DC: 0-600V, AC: 0-600 V / 50-400Hz,...)
Monitoring of voltages, currents,...
Pressure: air (<10 bar), water (<50 bar), oil (<400 bar)
fluid circulation (water, oil, etc.)

Our support in expertise and engineering

Support during your qualification
- qualification supervision,
- test control
- QTP writing
- project management
Complementary engineering and expertise
- mechanics: dimensioning and tool design
- structural calculation
- fatigue damage calculation
- thermal and fluid calculation
- trial customization
- modal analysis

Our professions and skills

Testing laboratory

Combining technical competence, exceptional instrumentation, mastery of standards and procedures, our laboratories guarantee the proper conduct of test campaigns and their reproducibility.

Engineering and expertise

You benefit from our know-how of testing and associated standards, our experience feedback on test campaigns and our mastery in project management.

Training

Our training courses are aimed at all those involved in the design, manufacture or marketing of products and who have to comply with applicable regulations or qualification requirements.

Design of test benches

Our knowledge of tests and their implementation is reflected in the design of tailor-made tooling and test bench solutions.

Design of test tools

The Emitech Group has an Engineering Department (Emitech, based at Montigny near Paris) and an Innovation & Applications Department (based at Environne'Tech) dedicated to developing testing tools for the group's internal use and on behalf of clients who are keen to equip themselves with technology that integrates the experience and expertise of a respected test centre. This expertise is focused primarily on mechanical environments and climatic conditions.

RF waves and Health

Electromagnetic fields raise questions and concerns about their impact on health.

EMC testing on vehicles - EMC testing on large systems