The research that was conducted on the water supply network of Phan Rang city, Ninh Thuan province, is aimed at using renewable energy to optimize the management and reduce the water loss. The research has conducted DMA (District Metering Area) setup, construction and installation of flow meter and pressure reducing valve chamber for flow and pressure control with active pressure regulation, and the use of hydraulic power generator to generate power at the site. Research results provide management agencies, in particular, water supply companies, with optimal solutions in network management and energy saving, reducing the amount of water loss effectively, thereby increasing revenue and saving clean water - precious resources are gradually depleted.

In modern organisations, personnel are not at their workplace permanently and, accordingly, in case of emergency, they are at risk. There are a number of situations in which the access of even emergency services to the premises is very difficult to organise due to the regime of secrecy and the desire to preserve trade secrets. Additionally, the system of restricting the movement of workers in their places can be very limited on the part of management in order to maintain production discipline. The novelty of the study is determined by the fact that when using the detection system in case of fire or other emergency, its integration with the access verification and distribution system can be based on the use of integrated access systems. The authors show that the use of conditional access systems makes it possible to get employee lists at a faster pace and identify threats if certain technological complexes are used in their work. The practical significance of the study is determined primarily by the necessity for structural integration between conditional access systems and systems for recording and forecasting actions in emergency situations. It is proposed to use a model that allows to eliminate such differences.