The company 'OSO' offers professional G1, G2 and G3 training courses. The courses are aimed at those wishing to obtain or renew the required qualifications. Our centre will prepare you to work with various tools and boilers used in industry. Electrical, power and gas training courses are provided in supervision and operation.

Electrical qualifications - G1

The training is mainly intended for people involved in the operation and supervision of equipment, networks and electrical installations, as well as the installation of photovoltaic systems. During the training, participants will learn about necessary issues which are useful at work and even in everyday life.

street lighting installation.

The main topics during the electrical training include:

  • electrical equipment, installations and networks below 1 kV
  • electrical overhead contact line
  • principles for the safe use of electrical equipment, networks and installations
  • electric street lighting networks
  • generating sets with a capacity greater than 50 kW
  • electrolysis equipment
  • equipment, installations and networks with a rated voltage above 1 kV
  • construction and operation of energy equipment, installations and networks
  • control and protection of equipment and installations.

Energy qualification - G2

Training in this area is intended for those involved in the supervision and/or operation of thermal installations, equipment and networks.

steam boiler at home.

The main topics during the energy training include:

  • steam and water boilers for solid, liquid and gaseous fuels with a power output above 50 kW
  • construction and operation of energy equipment, installations and networks
  • heating networks and installations including ancillary equipment
  • industrial steam and hot water consumer units above 50 kW
  • ventilation, air-conditioning and refrigeration units over 50 kW
  • pumps, extractors, fans and blowers with a power output of more than 50 kW
  • compressors over 20 kW and compressed air and industrial gas installations
  • fuel storage, warehousing and unloading facilities with a storage capacity exceeding 100 Mg
  • industrial ovens over 50 kW.

Gas qualification - G3

Gas courses are designed for employees wishing to engage in the operation and/or supervision of gas equipment, installations and networks.

steam boiler at home

The main topics during the gas training include:

  • gas transmission networks with a pressure greater than 0.5 MPa
  • gas distribution networks below 0,5 MPa
  • equipment for the production of gaseous fuels, gas generators
  • equipment for the processing and treatment of gaseous fuels
  • industrial gaseous fuel appliances above 50 kW
  • distribution of gaseous fuels
  • natural gas treatment plants, gas purification plants
  • liquefied petroleum gas unloading and bottling plants
  • first aid
  • principles for the safe use of installations
  • fire protection
  • gas appliances and installations having a pressure of not more than 5 kPa
  • gas appliances and installations with a pressure above 5 kPa.

Completion of the course confers eligibility to:

  • service
  • maintenance
  • installation
  • renovation
  • control and measurement work.

The aforementioned activities correspond to entitlements G1, G2 and G3.


The electrical, power and gas courses conclude with an oral examination before an SEP commission. A positive result of the examination confers entitlement to practice the profession for a period of 5 years. After the time has elapsed, the licence must be renewed.

The participant must be at least 18 years old and have at least an elementary education when entering the training.

In our centre we also offer other courses and training such as:

  • training for compressors
  • courses for forklift truck operators
  • mountaineering courses
  • offshore and onshore courses.

Questions and answers

How many years are electrical licences issued for?

Successful completion of the examination will confer on the participant the right to practise the profession for a period of five years from their acquisition.

Are gas installation supervision classes taught at the centre?

Yes, at our centre we carry out supervision and operation courses for gas, electrical and energy licences.

Does the scope of teaching include the principles of first aid?

Yes, first aid classes are taught in the curriculum.

Can I become a network maintainer after completing the electrical course?

Yes, the licence gives you the ability to operate, maintain and also install electrical, gas and energy networks, equipment and installations.

REGISTRATION: +48 504 477 077