The High Voltage Calibration Laboratory for electrical quantities and high voltage measuring systems is an independent calibration laboratory accredited by
German Accreditation Service (Deutscher Kalibrierdienst)-DKD as calibration laboratory with
DAR registration no DKD-K-18702 - of 1998-01-09 according EN 45001 for calibrations in the following fields: DC Voltage, AC Voltage, High Voltage, Voltage Impulse according IEC 60060-2.
This accreditation was granted following the assessment carried out by the Physikalisch Technische Bundesanstalt (PTB) Braunschweig, the national institute for science and technology and highest technical authority of Germany for the field of metrology.
In November 2002, following the assessment of the calibration laboratory according to ISO/IEC 17025, this laboratory was reaccredited in the same fields of calibration activity with DAR registration
no. DKD-K-18702-01 of 2002-11-26.
In January 2009, following the assessment of the calibration laboratory according to ISO/IEC 17025:2005, this laboratory was reaccredited in the same fields of calibration activity with DAR registration
no. DKD-K-18701 of 2009-01-23.

The lab has HV reference standards, having traceability to PTB standards (Germany) for:
lightning and switching impulse voltage, DC and AC voltage as well as calibrators for charge impulses, lightning impulses voltages, DC and AC voltages.