El recalentamiento eléctrico por termoconducción. Una perspectiva ® sicoquímica del calentamiento eléctrico/The thermal electrical overheating. A physicochemical perspective of the electrical warming

• Published in: Revista Facultad de Ingeniería 2012-09 (64), p.57
• Main Authors: Estrada, Dorindo Elam Cárdenas, Villar, Santos Gracia, Diez, Federico Fernández, Dzul, Luis Alonso
• Format: Article
• Language: Spanish
• ISSN: 0120-6230; 2422-2844

This present article exposes the actual behaviors observed after five years of investigation, experimentation and modeling, with electrical conductors that had a fault by high thermal conduction, with the principal purpose of producing a contribution that could be added to the existing regulations for the selection of wiring of electrical projects in low voltage. Till now, the experiments realized with electrical inflamed conductors, in most cases are focused to trying to determine if the electric conductor was ignited by electric arch, or if it was a victim of the fire, by means of physicochemical tests with the remains of the conductor. When the authors have considered factors like the intensity of current, type of installation, environmental temperature, heat sources nearby conductors, conditions of overload, and the transverse effective section of conduction after consider skin effect and turns of cable, the selection of a suitable conductor becomes a difficult decision.