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Navy

 

Certification and qualification in the maritime sector

The Emitech Group possesses the technical resources, recognition and experience necessary to meet the expectations of maritime players for ships, infrastructures, equipments and subsystems.

 

Our services are provided, on the one hand, in a regulatory context as is the case for the EMC, radio and safety requirements set for Europe by European regulations (wheelmark or CE marking according to the type of equipment) and, on the other hand, in a context of technical specifications specified by a buyer to his supplier.

Our expertise in this area is recognised by the notified bodies. We can help you ensure that your products comply with the requirements of international conventions approved by the International Maritime Organization (e. g. SOLAS - International Convention on the Protection of Life at Sea Safety Of Life At Sea). We can also ensure that your products meet common safety and performance standards throughout the EU.

 

 

 

Electromagnetic Compatibility

Antenne CEM

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.)

Spectre Radiofréquence
  • 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

Site en Espace Libre

 

Full Anechoic Room

Cage Full Anechoic Room

 

Semi-Anechoic Chamber

Cage Semi Anechoic Room

Environmental simulation

Qualification, exemple d'un essai en contraintes thermiques

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

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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

Shocks machines

  • Number: 8
  • Max mass: 1 t
  • Table simensions (mm): 800 x 800

Altitude and rapid decompression chambers

  • Number: 2
  • Altitude testing from 5000 feet to 100,000 feet (10 mBar).
  • Overpressure tests can be carried out up to 1 relative bar or 2 absolute bar.

Wind, sand and dust chamber

  • Number: 1
  • Usefull dimension (mm): 1m3 
  • Wind: adjustable speed from 2.4 to 25 m/s (on a 1m² section)
  • Humidity: regulated to be less than 30% Hr
  • Temperature: 23°C to 70°C
  • Concentration sand and dust: 0 and 10 g/m3.

Other tests

  • ​Fluid contamination
  • Sun exposure
  • Solar rays
  • Cooling, Icing
  • Fire testing
  • 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

  • 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)
 
 

 

Main Standards Applicable to Marine and Marine Equipment

  • IEC 60945 / EN 60945 # Maritime navigation and radiocommunication equipment and systems
  • IEC 60533 # Electrical and electronic installations in ships - Electromagnetic compatibility (EMC) - Ships with a metallic hull
  • IEC 61000-4-2 / EN 61000-4-2 # Electrostatic discharge immunity
  • IEC 61000-4-3 / EN 61000-4-3 # Electromagnetic field immunity
  • IEC 61000-4-4-4 / EN 61000-4-4 # Immunity to fast transients / electric bursting
  • IEC 61000-4-5 / EN 61000-4-5 # Overvoltage immunity
  • IEC 61000-4-6 / EN 61000-4-6 # Immunity to conducted disturbances, induced by radio frequency fields
  • IEC EN 61000-4-8 / EN 61000-4-8 # Power frequency magnetic field immunity
  • IEC 61000-4-11 / EN 61000-4-11 # Voltage losses, short interruptions and immunity to voltage variations
  • MIL-STD 461 # Military standard: Electromagnetic interference characteristics requirements for equipment
  • MIL-STD 810 # Department of defense test method standard: environmental engineering considerations and laboratory tests
  • Lloyds Register Test Spec No 1 # Performance and Environmental Test Specification for the following Environmentally Tested Products used in Marine Applications: Electrical Equipment, Control and Monitoring Equipment, Instrumentation and Internal Communication Equipment, Programmable Electronic Systems 
    DNV Certification Notes 2.4 # Environmental test specification for instrumentation and automation equipment

 

Main types of tests

  • Insulation resistance
  • Power supply variation
  • Power failure
  • Tilt
  • Vibration
  • Humidity
  • Salt fog
  • Dry heat
  • Low temperature
  • High voltage
  • Ingress protection
  • Electromagnetic compatibility

 

 

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.

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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.

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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.

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EMC testing on vehicles - EMC testing on large systems

A very large Faraday cage (27 x 18 x 10.5m) for EMC testing of all types of large vehicles and equipment

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