Accréditation vue cofrac

Séisme

Accréditation vue cofrac

Bourgoin-Jallieu

Earthquake testing, seismic testing and earthquake resistance

Nuclear reactors, strategic military facilities and other sensitive sites... seismic tests are a requirement for various industrial facilities.

The mechanical stresses of earthquakes are reproduced by test equipment using a test table with high low-frequency and multiaxial displacement requirements.
They are most often carried out with bi-axial excitation (vertical - horizontal).

seisme.mp4

Achievable standards or specifications

Nuclear and other sectors

NF EN 60068-2-57: Test Ff : vibration - Time-history and sine-beat method
NF EN 60068-3-3: Guidance seismic test methods for equipments.
NF EN 60068-2-6: Test Fc : vibration (sinusoidal)

Test requirements:

CRT 91 C 112 00 / EDF HN20E53 : Resistance to material earthquakes. Generic provisions for the bi-axial accelerogram test.
GR 63-core Networks Equipment-Building System Requirements
ICC- ES AC156 : Acceptance criteria for seismic certification by shake table

Servitudes to validate operability

To verify the functioning of the equipment under test during and / or after testing, it is possible to ensure:

Power supply (DC: 0-600V, AC: 0-600 V / 50-400Hz,...)
Monitoring of voltages, current, temperatures, micro-breaks,...
Pressure: air (<10 bar), water (<50 bar), oil (<400 bar)
Fluid circulation: water: 40m³/h / 10 bar, oil: 50l/min...
…

Presentation of the test equipment

Frequency: 0.1 to 100 Hz

16 acquisition channels

Sinus control, random, shock (S. R. C.) in bi-axis

Test bench in 'assembly' configuration

Force: 50kN horizontal and 2*30kN vertical

Displacement : max. 250 mm peak-to-peak horizontally and 100 mm p-to-p vertically.

Max. mass: 900 kg

Table 1100mm x 1200mm

Test bench in 'component' configuration

Force: 50kN horizontal andvertical

Displacement : max. 250 mm peak-to-peak horizontally and vertically.

Max. mass: 100 kg

Table 450mm x 450mm

Measurements and data acquisition

Capacitive accelerometer sensors, charge, ICP,...

Wireless displacement sensors, LVDT,...

Strain gauges

…

Nos métiers et compétences

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.

EMC testing on vehicles - EMC testing on large systems