Laboratories
Tests and verifications are made at the factory, for our own production and for outside clients, in strict confidentiality.
Testing laboratory
The testing laboratory is an independent structural unit of ZAVN-Dobrich AD, located on two sites. It has a working quality management system with documentation developed to a high standard.
The laboratory has the equipment for every test the company's work requires. The equipment is maintained and calibrated at regulated intervals, with traceability to national and international standards.
Besides the production of ZAVN-Dobrich AD, the laboratory serves outside clients. It performs all its work in strict confidentiality of the clients' information. Access by outside persons is limited and strictly regulated.
The management of the testing laboratory and its staff follow the principles laid down in the management system and apply and maintain the requirements of BDS EN ISO/IEC 17025 in their daily testing work.
Laboratory for verification of instrument transformers
The laboratory performs the initial verification of current and voltage instrument transformers (as auxiliary devices to electricity meters) intended for use with electrical measuring instruments and electrical protective devices, at 15 Hz to 100 Hz, with separate windings and operation in an environment of normal fire hazard, by the differential-null method.
The laboratory has a working quality management system. It has reference standards and measuring instruments with assured traceability, specialists with suitable education and qualifications, auxiliary equipment and premises that allow the verification methods to be applied.
The results of the verification are confirmed by initial verification marks.
Request a test or a verification
Tell us the type and number of transformers or products and the date you need them by.