Sediver insulators testing facilities

Thanks to significant investments Sediver owns amongst the most advanced high voltage laboratories worldwide, with accreditation recognized by more than 70 organisms in over 50 countries around the world.

The cutting edge research center houses the latest technology and equipment to effectively develop innovative new technologies and to evaluate and improve product performance and lifespan through simulated environmental chambers, ageing and endurance tests, and high-voltage testing.

Additional regional facilities are coordinated from Sediver Research Center and support the technical effort within the whole Business Unit.


Saint-Yorre, France


C.E.B, France

Sediver Research Center laboratories obtained independent certifications and are recognised to have the technical competence for testing and calibration:

  • Saint Yorre laboratory is ISO 9001:2008 certified
  • C.E.B High Voltage laboratory is ISO 17025 certified, accredited by COFRAC - which ACCREDITATION CERTIFICATE is updated periodically.

    Lightning impulse
    Switching impulse
    Dry and wet power frequency
    Pollution performance
    The scope is available on

In terms of testing, accreditation guarantees that the results are obtained according to valid methods and procedures that comply with precise standards. In terms of calibration, accreditation recognises the aptitude of a laboratory to carry out calibrations and metrological verifications in a defined domain and with specified uncertainties. The Cofrac label on the calibration certificate guarantees the traceability of measurements in the International System of Units (SI).

COFRAC is signatory of multilateral internationall agreement and is recognized in over 50 countries around the world.