A. Zakrzewska, M. Łój-Pilch
Silesian University of Technology, Institute of Water and Wastewater Engineering, Gliwice, PL

CONDUITS MATERIAL AND THEIR RELIABILITY ON THE EXAMPLE OF THE SELECTED WATER DISTRIBUTION SYSTEM


From the point of view of reliability theory the water distribution system, built of many components, is a renewable object. Therefore, when analyzing the feature that is affected by both the failure and the repairability, it is important to consider not only the failure rate or the mean time to failure but also the intensity or mean time to repair. Only a comprehensive analysis of these indicators would enable to evaluate and compare the reliability of the entire water supply system or their components. The reliability of the water supply is also influenced by the materials used for water conduit and other elements because they determine the type of damage occurring. Furthermore, the installation and repair technology, which depend on the materials used, affects the duration of the water pipe malfunction. Analyzing the reliability of the water conduit, taking into account its material structure, can help water companies in proper maintaining the water distribution system. This article presents the results of analysis for municipal water supply system, based on operational data verified by the water company.

Keywords: water supply reliability, material of water supply, failure, repairability