10.14489/td.2025.09.pp.004-015

2025, 09 September

DOI: 10.14489/td.2025.09.pp.004-015

Ushakov V. M., Shcherban A. S.
ASPECTS OF THE APPLICATION OF RADIOGRAPHIC MONITORING OF VESSELS, PIPELINES AND OTHER ELEMENTS OF NUCLEAR POWER PLANTS IN REGULATORY DOCUMENTS
(pp. 4-15)

Abstract. Some aspects of regulatory documents are considered: Federal norms and rules in the field of atomic energy use regarding radiographic testing (RGT). Comments are given on individual points of the specified documents that cause ambiguous interpretation. Individual examples of radiographic testing are given. The peculiarity of constructing quality standard tables when assessing the results of RGT is shown, in particular, the document “Norms and Rules NP-105-15”. An approach is proposed for the case: “the ratio of the estimated thickness to the total radiation thickness is less than 0.2”. The proposed solution is illustrated by examples of implementing radiographic testing of welded joints.

Keywords: field of atomic energy use, federal norms and rules, non-destructive testing, welded joints, radiographic testing, radiation thickness, testing sensitivity.

+ - About the Authors Click to collapse

V. M. Ushakov (JSC “RPA “CNIITMASH”, Moscow, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. S. Shcherban (Volgodonsk branch of JSC “AEM-technologies” Atommash, Volgodonsk, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. PN AE G-7-008-89. Rules and regulations in nuclear energy. Rules for design and safe operation of equipment and pipelines of nuclear power installations. (1990). Energoatomizdat. [in Russian language]
2. NP-089-15. Federal norms and rules in the field of atomic energy use. Rules for design and safe operation of equipment and pipelines of nuclear power installations (rev. Orders of Rostekhnadzor dated 17.01.2017 No. 11; 19.11.2019 No. 442). (2015). FGU “NTC YaRB”. [in Russian language]
3. PN AE G-7-017-89. Unified methodology for control of basic materials (semi-finished products), welded joints and cladding of equipment and pipelines of nuclear power plants. Radiographic testing. (1990). Gosatomenergonadzor USSR. [in Russian language]
4. PN AE G-7-010-89. Rules and regulations in nuclear energy. Equipment and pipelines of nuclear power plants. Welded joints and overlays. Control rules. (1991). Energoatomizdat. [in Russian language]
5. NP-105-18. Federal norms and rules in the field of atomic energy use. Rules for metal control of equipment and pipelines of nuclear power plants during manufacture and installation. (2018). [in Russian language]
6. NP-84-15. Federal norms and rules in the field of atomic energy use. Rules for control of base metal, welded joints and overlay surfaces during operation of equipment, pipelines and other elements of nuclear power plants. (2015). Rostekhnadzor. [in Russian language]
7. NP-045-18. Federal norms and rules in the field of atomic energy use. Rules for design and safe operation of steam and hot water pipelines for nuclear energy facilities. (2018). Rostekhnadzor. [in Russian language]
8. PN AE G-7-025-90. Rules and regulations in nuclear energy. Steel castings for nuclear power plants. Control rules. (1991). Gospromatomnadzor USSR. [in Russian language]

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