Tretiakova L. The development of the theory and methods for the creation of protective clothing for nuclear power plants workers.

Object of analysis - the creation process of the effective and reliable protective clothing with certain functionality. Subject of analysis - the development of the theory and methods for the creation of protective clothing for nuclear power plants workers. Thesis related to and deals with the actual problem in the nuclear power plants, which is the necessity of development the optimal personal protective clothing. So, the theory based on mathematical modeling that integrates the full range of dangerous and harmful factors in nuclear power plants was developed. In the project development phase, the selection of optimal parameters and modes for protective clothing based on optimal protection criteria, reliability and efficiency were made. Also, during the analysis of these parameters, the issues of thermal and electrostatic fields, which are formed on the surfaces of protective clothing during the use, were taken into account. The now-how of the obtained results lies in the parametric method for estimating the reliability of personal protective clothing, using the following parameters: the failure rate, the duration of work without failure and the longitude of the use was developed. The issue of creating the electrostatic field and spontaneous electric discharges at the protective clothing surface was resolved in this paper. This problem is very complex since it might cause the damage of electromagnetic compatibility of electronic control systems installed in power plants, therefore the information criteria of electrostatic risks were defined. The graphic-analytical method based on the theory of heat transfer was developed in this paper. This method gives ability to estimate the worker thermal state and changes of his body temperature during the execution of the work of different intensity. The area-modular model of protective clothing design was created. This model takes into account the need to protect the different parts of the worker body, thus solves the problem of the best design and technological parameters selection. The practical importance of obtained results is that the both theoretical conclusions and calculations in practice give possibility to develop types of clothing protects against radiation, insulation and filtration hazardous substances, therefore helps the dramatically decrease the risk of the employee injury during work performance in the power plant, improve their work and safety conditions.