DIN 25459:2021-03: Reinforced and prestressed concrete containment for nuclear power plants

This document applies to nuclear power plants with containment vessels (inner containment) made of reinforced and prestressed concrete with steel liners. The containment is the structural part of the safe enclosure. This document covers the design and layout of the containment including all penetrations as far as their function is necessary to control the consequences of an accident. For this purpose, it is necessary that the containment withstands the static, dynamic and thermal loads (for example, forces, internal and external overpressures and temperatures) while complying with the leakage rate taken as a basis. This document also applies to construction parts which have an influence on the stability of the containment. This document was prepared by the working committee NA 062-07-43 AA "Components made of steel and prestressed concrete in nuclear facilities" in the DIN Standards Committee for Materials Testing (NMP). This document replaces DIN 25459 Supplement 1:2018-03 , DIN 25459:2014-11. Compared to DIN 25459:2014-11 and DIN 25459 Supplement 1:2018-03 the following changes have been made: a) incorporation of the supplement in Table 1, 8.1 as well as 8.3. 1; b) updating of the references; c) revision of 5.3.2 with regard to the characteristic material value; d) revision of 7.4.4 to include requirement categories for the verification of liner integrity; e) editorial revisions.