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List of type test certificates

CESI is a world-wide recognised independent "third party" testing Organisation which issues Certificates (TC) of type, design, special and functional tests accepted all around the world as proof of the validity of the design of a product.
The availability of a list of Certificates of type, design, special and functional tests may be an help for purchasers in electric power supply industry, as a TC provides identification of the apparatus tested and ensures that a complete series of tests is satisfactorily performed for specific characteristics or ratings.
By the release of a TC, the ratings assigned by the Manufacturer are endorsed by CESI, and in fact a TC is issued only if the above requirements, that is the identification of the apparatus and the getting over of a specific series of tests, are adequately met.
We add that CESI is a founder member of the Short-circuit Testing Liaison (STL), an Organisation that provides a forum for international collaboration between testing Laboratories; and its basic aim is the harmonised application of IEC Standards, and related IEC Standards, to the type testing of electrical power equipment.

Following the STL criteria, five basic TCs may be issued:

TC of complete type test. This Certificate provides the verification of all rated characteristics of the equipment as assigned by the Manufacturer, by means of the performance of all type tests specified by the relevant Standards.

TC of dielectric performances. This Certificate provides the verification of all dielectric ratings by means of the performance of the appropriate type tests specified by the relevant Standards.

TC of temperature rise performance. This Certificate provides the verification of the temperature-rise limits, together with measurement of the main circuit resistance, by means of the performance of the appropriate type tests specified by the relevant Standards.

TC of short circuit/making and breaking performance. This Certificate provides the verification of the rated characteristics with respect to short circuit and/or making and breaking performance, by means of the performance of the appropriate type tests specified by the relevant Standards.

TC of switching performance. This Certificate provides the verification of the switching ratings (e.g. capacitive current) by means of the performance of the appropriate type tests specified by the relevant Standards.

The TC list of this database covers a period starting from 2000 and it is continuously updated. To facilitate its research, the TCs may be sorted by apparatus, by Manufacturer or by Standard.