The influence of changes in the project on the reliability of heat power systems during construction and installation worksT.G. Gorbunova, T.O. Politova, Sh.G. Ziganshin, E.V. Izmailova and V.V. SerovE3S Web Conf., 124 (2019) 05083DOI: https://doi.org/10.1051/e3sconf/201912405083