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1 Journal of Polish Safety and Reliability Association

1 2012

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Risk analysis of water supply interruptions in collective water supply systems

Tchórzewska-Cieślak B., Rak J. R., Piegdoń I.

Journal of Polish Safety and Reliability Association

2012

Vol. 3, No. 2

201--208

The subject and main purpose of this study is to present the method of risk analysis and assessment of the lack of water supply to the collective water supply system (CWSS). Presented method using the expected value of water scarcity. The analysis was based on all possible states of the operation of water production subsystem. The article contains calculation example of analysis for the exemplary CWSS with regard to absolute risk, equal to the expected value of water scarcity and the relative risk referred to the nominal value of the water demand. In the example attached special importance to the criteria levels of the relative risk of lack of water supply. Presented method is a new concept which allows to make comprehensive analysis of reliability, safety and operation of the collective water supply system.