The paper presents the results of the VR training application in use for electrical technicians. Eight participants were tested, who underwent a virtual training scenario and then provided feedback (in the form of survey study) regarding their subjective impressions of a given solution. The scenario consists of 27 steps and focuses on assembly of a low-voltage connecting cable to an existing installation. For each participant, the time of realization was measured, and the individual stages were controlled and evaluated by the instructor in order to assess the scenario difficulty and potentially identify and introduce any corrections. The paper describes the observations and conclusions that can be drawn by analyzing the entire training procedure and its general reception by users. The scenario has been received favorably by the users and they all managed to finish it successfully. The VR technology has been evaluated as being almost ready for implementation in real classrooms.