Changes in the microstructure of metallic elements of multi-core cable products when exposed to flame
DOI:
https://doi.org/10.33408/2519-237X.2025.9-1.81Keywords:
cable products, emergency operation mode, microstructure, microhardness, fire investigationAbstract
Purpose. To determine the microhardness and changes in the microstructure of metal elements of multi-core cable products with aluminum and copper cores when exposed to flame.
Methods. Metallography, durometry, as well as general scientific research methods: analysis, synthesis, comparison and generalization.
Findings. The microstructure, dimensions and microhardness of grains of copper and aluminum metal elements of cable products after exposure to flame were determined.
Application field of research. The research results can be used in training specialists in the field of emergency prevention and response, as well as in conducting fire-technical expertise during the investigation of fire causes.
References
Mokryak A.Yu., Cheshko I.D., Pariyskaya A.Yu., Plotnikov V.G., Skodtaev S.V., Mokryak A.V. Ekspertnoe issledovanie posle pozhara mednykh provodnikov: metodicheskie rekomendatsii [Expert examination of copper conductors after a fire: methodological recommendations]. Saint-Petersburg State Fire Service University of EMERCOM of Russia, 2019. 149 р. (rus) EDN: https://elibrary.ru/HJXXJU.
Smelkov G.I. Pozharnaya bezopasnost' elektroprovodok [Fire safety of electrical wiring]. Moscow: Kabel', 2009. 328 р. (rus)
Hagemuer W. Die metallographische Untersuching von Kupferleiternals Method zur Untercheidungzwischenprimaren und sekundaren Kurzschlussen. Schriftenreihe der Deutsch Volkspolizei, 1963. No. 7–12. S. 1160–1170.
Mitrichev L.S., Kolmakov A.I., Stepanov B.V. Issledovanie mednykh i alyuminievykh provodnikov v zonakh korotkogo zamykaniya i termicheskogo vozdeystviya: [Study of copper and aluminum conductors in short-circuit and thermal impact zones]: methodical recommendations. Moscow: All-Russian Research Institute of the Ministry of Internal Affairs of the USSR, 1986. 43 р. (rus)
Smelkov G.I., Aleksandrov A.A., Pekhotikov V.A. Metody opredeleniya prichasnosti k pozharam avariynykh rezhimov v elektrotekhnicheskikh ustroystvakh [Methods for determining the involvement of emergency modes in electrical devices in fires]. Moscow: Stroyizdat, 1980. 59 р. (rus)
Cheshko I.D. Tekhnicheskie osnovy rassledovaniya pozharov [Technical fundamentals of fire investigation]: methodological manual. Moscow: VNIIPO EMERCOM of Russia, 2002. 330 р. (rus)
Cheshko I.D., Mokryak A.Yu., Mokryak A.V. Evolyutsiya metodiki opredeleniya pervichnosti-vtorichnosti oplavleniy mednykh provodnikov, vyzvannykh korotkim zamykaniem [Evolution of the methodology of distinguishing«victim» from «cause» beads of copper conductors by short circuit]. Vestnik Saint-Petersburg University of State Fire Service of Emercom of Russia, 2018. No. 3. Рр. 39–45. (rus). EDN: https://elibrary.ru/YKVZYT.
Karapol'tseva E.V., Shekov A.A. Problemy issledovaniya zon oplavleniy alyuminievykh provodnikov metodami elementnogo analiza pri proizvodstve pozharno-tekhnicheskoy ekspertizy [Problems of studying melt zones of aluminum conductors using elemental analysis methods during fire-technical examination]. Actual problems of safety in the technosphere, 2024. No. 1 (13). Pp. 18–21. (rus). DOI: https://doi.org/10.34987/2712-9233.2024.63.22.004. EDN: https://elibrary.ru/NNSMIH.
Taubkin I.S., Saklantiy A.R. O nadezhnosti metodiki ustanovleniya prichinnoy svyazi tokovoy peregruzki elektroprovodki s vozniknoveniem pozhara [Reliability of the method for establishing causation between electrical circuit overload and fire ignition]. Theory and Practice of Forensic Science, 2019. Vol. 14, No. 1. Pp. 106–115. (rus). DOI: https://doi.org/10.30764/1819-2785-2019-14-1-106-115. EDN: https://elibrary.ru/ZRYDAQ.
Il'yushchenko A.F., Fomikhina I.V., Yunchits V.M. Struktura alyuminievykh provodnikov s oplavleniyami dlya opredeleniya momenta vozniknoveniya korotkogo zamykaniya pri provedenii pozharno-tekhnicheskikh ekspertiz [Structure of melted aluminum conductors for determining the moment of occurrence of a short circuit during fire-technical examinations]. Emergency Situations: Prevention and Elimination, 2012. Vol. 32, No 2, Pp. 110–117. (rus). EDN: https://elibrary.ru/WCNSDV.
Goromov V.N., Galishev M.A., Sysoeva T.P. Issledovanie raspolozheniya dendritnykh struktur v oplavleniyakh mednykh provodnikov tokami pervichnogo korotkogo zamykaniya v ekspertize [Study of the location of the dendritic structures in the reflow of copper conductors of the primary short-circuit currents in the examination]. Vestnik Saint-Petersburg University of State Fire Service of Emercom of Russia, 2012. No 3. Pp. 1–7. (rus). EDN: https://elibrary.ru/RSMMEB.
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