FORMATION MECHANISM OF EXCESS CURRENTS PASSAGE TRACES IN COPPER CONDUCTORS

Cheshko I D; Mokryak A Yu; Skodtaev S V

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FORMATION MECHANISM OF EXCESS CURRENTS PASSAGE TRACES IN COPPER CONDUCTORS

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FORMATION MECHANISM OF EXCESS CURRENTS PASSAGE TRACES IN COPPER CONDUCTORS

Journal: SCIENTIFIC AND ANALYTICAL JOURNAL «VESTNIK SAINT-PETERSBURG UNIVERSITY OF STATE FIRE SERVICE OF EMERCOM OF RUSSIA» Volume 2015 № 1 , 2015

Rubrics: FIRE-FIGHTING TACTICS, PHYSICO-CHEMICAL PRINCIPLES OF BURNING AND EXTINGUISHING PROCESSES

Cheshko I D ¹

Mokryak A Yu ²

Skodtaev S V ³

Author and publication information

Authors:

1. Saint-Petersburg university of State fire service of EMERCOM of Russia

2. Saint-Petersburg university of State fire service of EMERCOM of Russia

3. Saint-Petersburg university of State fire service of EMERCOM of Russia

Type:

Article

Pages:

from 41 to 46

Status:

Published

Received:

12.03.2015

Accepted:

20.03.2015

Published:

25.03.2015

Language:

Russian

Keywords:

forensic fire-technical expertise, current overload, excess current, morphologic analysis, partial melting, copper wire, wiring

Abstract and keywords

Abstract (English):
The formation mechanism of copper conductor damages, that occur in the process of current overload at 220 volt alternate current network, was considered. The influence of current overload rate on the copper conductor damages was demonstrated. The character of conductor damages in the process of various rate overload currents passage was demonstrated.

Keywords:
forensic fire-technical expertise, current overload, excess current, morphologic analysis, partial melting, copper wire, wiring

References

1. Statisticheskie dannye o pozharah i posledstviyah ot nih po sub'ektam Rossiyskoy Federacii za 2013 g. URL: http://www.mchs.gov.ru (data obrascheniya: 20.12.2014).

2. Smelkov G.I. Pozharnaya opasnost' elektroprovodok pri avariynyh rezhimah. M.: Energoatomizdat, 1984. 184 s.

3. Mokryak A.Yu., Cheshko I.D. Morfologicheskiy analiz mednyh provodnikov, podvergshihsya vozdeystviyu tokovoy peregruzki, pri ekspertize pozharov // Problemy upravleniya riskami v tehnosfere. 2014. № 4 (32). S. 41-49.

4. Semenchenko V.K. Poverhnostnye yavleniya v metallah i splavah. M.: Gostehizdat, 1957. 491 s.

5. Arcimovich L.A. 7.4 Pinch-effekt // Elementarnaya fizika plazmy. M.: Atomizdat, 1969. 189 s.

6. Rayzer Yu.P. Fizika gazovogo razryada. 2-e izd. M.: Nauka, 1992. 536 s.

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