Inspection Body

 

inspection body en

 

The Inspection Body Type “C” was set up in the year 2000 and possesses Certificate of Accreditation, acc. BDS ЕN ISO/IEC 17020:2012 issued by the Executive Agency of the Bulgarian Accreditation Service.
The Inspection Body uses well-equipped stationary and mobile test stations. It issues Inspection Certificates for services related to: inspection and control of electrical switchgear equipment, cable line marking, localization and elimination of cable failures, test of protective dielectric equipment and materials, earth-loop impedance and resistance of grounding systems, test of physical parameters, etc.

Scope of Accreditation:

 

 

Electrical switchgear and equipment up to and over 1000 V

Scope of Inspection and Control

Electrical switchgear and equipment up to and over 1000 V

Scope of inspection and control by evaluating different inspection parameters:

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

 

 

Accreditation          Request

Electrical switchgear and equipment over 1000 V

Scope of Inspection and Control 

Electrical switchgear and equipment over 1000 V - including primary and secondary circuits

Scope of inspection and control by evaluating different inspection parameters:

  • Insulation resistance

 

 

Accreditation        Request

Electrical machines and equipment up to 35 kV

Scope of Inspection and Control 

Electrical machines and equipment up to 35 kV

Scope of inspection and control by evaluating different inspection parameters:

  • Insulation tested by increased voltage, at industrial frequency

 

 

Accreditation         Request

 

Electrical machines and equipment up to 1000 V

Scope of Inspection and Control 

Electrical machines and equipment up to 1000 V

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 safety means

Scope of Inspection and Control 

Electrical safety means: 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

Electrical safety means: Voltage detectors

Scope of Inspection and Control 

Electrical safety means: Voltage detectors

Scope of inspection and control by evaluating different inspection parameters:

  • Voltage threshold

 

 

Accreditation        Request

Electrical safety equipment: dielectric gloves, ankle-boots, boots and overshoes

Scope of Inspection and Control 

Electrical safety equipment: dielectric gloves, ankle-boots, boots and overshoes

Scope of inspection and control by evaluating different inspection parameters:

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

 

 

Accreditation      Request

Cables and cable lines up to 20 kV

Scope of Inspection and Control 

Cables and cable lines up to 20 kV

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 110 kV

Scope of Inspection and Control 

Power transformers up to 110 kV

Scope of inspection and control by evaluating different inspection parameters:

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

 

 

Accreditation      Request

 

Electro Insulating Oil

Scope of Inspection and Control 

Electro Insulating Oil

Scope of inspection and control by evaluating different inspection parameters:

  • Breakdown voltage

 

 

Accreditation        Request

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