Inspection Body

 

The Type C inspection body was established in 2000 and holds a Certificate of Accreditation in accordance with BDS EN ISO/IEC 17020:2012, issued by the Executive Agency 'Bulgarian Accreditation Service'

The Inspection Body carries out inspection and testing of electrical installations and equipment, including electrical protective devices, cable lines, power transformers, electric motors and machines, voltage transformers, current transformers, power circuit breakers, and disconnectors.

Splicing of optical cable lines.

Configuration and parameterization of relay protection, as well as inspection and control of electrical automation and telemechanics.



Scope of Accreditation:

 

 

Electrical switchgear and equipment up to and over 1000V

Scope of Inspection and Control

Electrical switchgear and equipment up to and over 1000V

Scope of inspection and control by evaluating different inspection parameters:

  • Resistance of grounding protection systems;
  • Resistance of lightning protection systems.

 

 

 

ACCREDITATION          Request

Electrical machines and equipment up to 35kV

Scope of Inspection and Control 

Electrical machines and equipment up to 35kV

Scope of inspection and control by evaluating different inspection parameters:

  • Insulation tested by increased voltage, at industrial frequency

 

 

ACCREDITATION         Request

 

Electrical machines and equipment for voltage up to 1000V

Scope of Inspection and Control 

Electrical machines and equipment for voltage up to 1000V

Scope of inspection and control by evaluating different inspection parameters:

  • Earth-loop impedance;
  • Safety switches: residual current, shut off time, contact voltage of equipment fitted with a safety switch, resistance of the grounding element as part of equipment fitted with a safety switch.

 

 

ACCREDITATION        Request

Electrical protective equipment

Scope of Inspection and Control 

Electrical protective equipment: isolating rods - handling (operating), measuring; for portable grounding elements, isolating pliers, current measurement pliers, voltage detectors, dielectric carpets and strips

Scope of inspection and control by evaluating different inspection parameters:

  • Dielectric strength of insulation tested by increased voltage, at industrial frequency

 

 

ACCREDITATION        Request

Cables and cable lines up to 35kV

Scope of Inspection and Control 

Cables and cable lines up to 35kV

Scope of inspection and control by evaluating different inspection parameters:

  • Dielectric strength of insulation tested by increased DC voltage

 

 

ACCREDITATION        Request

 

Power transformers up to 400kV

Scope of Inspection and Control 

Power transformers up to 400kV

Scope of inspection and control by evaluating different inspection parameters:

  • Active resistance of windings;
  • Transformation ratio;
  • Connection group.

 

 

ACCREDITATION      Request

 

Direct and alternating current electric motors up to 6kV

Scope of Inspection and Control 

Direct and alternating current electric motors up to 6kV

Scope of inspection and control by evaluating different inspection parameters:

  • Active resistance of windings

 

 

ACCREDITATION        Request

Power circuit breakers and disconnectors for up to 400kV

Scope of Inspection and Control 

Power circuit breakers and disconnectors for up to 400kV

Scope of inspection and control by evaluating different inspection parameters:

  • Transient electric resistance of a contact system

 

 

ACCREDITATION        Request

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