Aim: The article presents the issue of the effectiveness of the internal fire protection water supply systems in tourism facility buildings in terms of providing them efficient power supply in different situations and working conditions. The authors discuss the ways to tackle this issue.

Introduction: The development of the tourism industry in the country together with various types of international events led to the increase in construction and reconstruction sector activity. The construction boom was provoked by the need to provide tourists with comfortable living conditions. What is more, to ensure these conditions, many objects were built in scenic locations far away from human settlements. For this reasons the buildings are confined to the limited consumption of resources such as electrical power, water and transport communications. In order to protect people and their property from fires, it is essential to ensure an uninterrupted power supply to the fire protection systems, including the internal fire protection water supply system. Having analyzed the existing standby energy sources and the rapid development of technology, especially in the electronic and semiconductor field, the authors determined that in order to provide the backup power to the first category consumers of power supply, which include fire protection system, the optimal solution would be to use rechargeable batteries with autonomous voltage inverters.

Methodology: The authors carried out the quantitative analysis of transmission power lines failures and power blackouts in settlements. With the use ofthe modelling theory of systems the authors designed a mathematical model for backup power from batteries with standby voltage inverters for the internal fire protection water supply system. The adequacy of the model was proved by the experiments carried out at the experimental stand.

Conclusions: The discussed method of providing backup power to fire protection water supply system with the use of batteries and standalone voltage converters provides necessary parameters for the estimated time required for the arrival of fire operational units. What is more, the method enables to switch on the system more quickly in comparison to other power sources in the conditions of adverse weather. Moreover, it does not require retrofitting of existing and already used systems or special operating conditions, thus the efficiency of the system is improved by about 150 percent.

Keywords: fire, fire protection water supply, fire protection system, battery, standalone voltage converter

Type of article: original scientific article