In electrical power systems, cords and extension cords are exposed to mechanical damage and other insulation stresses. Mechanical damage to stranded conductors can reduce locally their cross section or break them and cause anomalous local conditions of overheating or arcing. The ordinary protective devices cannot detect the series faults that persist, so the fault point remains energized and is subject to electric shock and fire hazards. Effective protection can be accomplished by implementing active and passive measures: installing arc-fault circuit interrupters or arc-fault detection devices, able to detect arcing faults, or wiring the circuits with a grounding protection conductor to involve the ground in every fault. In this way, residual current protective devices (residual current devices or ground fault protective devices) quickly protect the series faults not only with arc, but also without it. Ground-fault-forced cables facilitate by design the conversion of any kind of cable fault to a ground fault. They are particularly recommended for cords and extension cords, internal circuits to grounded equipment, uninterruptible power system continuity circuits, aircraft circuits, road tunnels, data centers, refrigerated containers parks, residences, and hospitals.

Measures to Minimize Series Faults in Electrical Cords and Extension Cords / Parise, Giuseppe; Hesla, Erling; Mardegan, Claudio Sergio; Parise, Luigi; Capaccini, Elisabetta Bragagni. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - 55:5(2019), pp. 4551-4556. (Intervento presentato al convegno 55th Industrial and Commercial Power Systems Technical Conference IEEE/IAS tenutosi a Calgary (Canada)) [10.1109/TIA.2019.2926240].

Measures to Minimize Series Faults in Electrical Cords and Extension Cords

Parise, Giuseppe
;
Parise, Luigi;
2019

Abstract

In electrical power systems, cords and extension cords are exposed to mechanical damage and other insulation stresses. Mechanical damage to stranded conductors can reduce locally their cross section or break them and cause anomalous local conditions of overheating or arcing. The ordinary protective devices cannot detect the series faults that persist, so the fault point remains energized and is subject to electric shock and fire hazards. Effective protection can be accomplished by implementing active and passive measures: installing arc-fault circuit interrupters or arc-fault detection devices, able to detect arcing faults, or wiring the circuits with a grounding protection conductor to involve the ground in every fault. In this way, residual current protective devices (residual current devices or ground fault protective devices) quickly protect the series faults not only with arc, but also without it. Ground-fault-forced cables facilitate by design the conversion of any kind of cable fault to a ground fault. They are particularly recommended for cords and extension cords, internal circuits to grounded equipment, uninterruptible power system continuity circuits, aircraft circuits, road tunnels, data centers, refrigerated containers parks, residences, and hospitals.
2019
55th Industrial and Commercial Power Systems Technical Conference IEEE/IAS
anomalous overheating; arcing and burning; arcing fault; circuit protection; fire ignition hazard; ground fault detection
04 Pubblicazione in atti di convegno::04c Atto di convegno in rivista
Measures to Minimize Series Faults in Electrical Cords and Extension Cords / Parise, Giuseppe; Hesla, Erling; Mardegan, Claudio Sergio; Parise, Luigi; Capaccini, Elisabetta Bragagni. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - 55:5(2019), pp. 4551-4556. (Intervento presentato al convegno 55th Industrial and Commercial Power Systems Technical Conference IEEE/IAS tenutosi a Calgary (Canada)) [10.1109/TIA.2019.2926240].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1325659
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