This paper introduces a characterization of grounding systems (GSs) and defines their condition of “conventionally safe” and “intrinsically safe.” A single GS and a set of GSs are intrinsically safe if they guarantee touch/step voltages permanently permissible for an assigned ground fault value. A new definition of global grounding systems (GGSs) is proposed, revising that offered by the Standards IEC 61936-1/EN 50522. A safety criterion, useful for urban and industrial areas with reduced accessibility, allows identifying the safety zone of influence, and the intrinsically safe condition of a single GS and of a GGS, constituted by a set of interconnected single GSs.
Intrinsically Safe Grounding Systems and Global Grounding Systems / Parise, Giuseppe; Parise, Luigi; Martirano, Luigi. - In: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS. - ISSN 0093-9994. - ELETTRONICO. - 54:1(2018), pp. 25-31. [10.1109/TIA.2017.2743074]
Intrinsically Safe Grounding Systems and Global Grounding Systems
Parise, Giuseppe;Parise, Luigi;Martirano, Luigi
2018
Abstract
This paper introduces a characterization of grounding systems (GSs) and defines their condition of “conventionally safe” and “intrinsically safe.” A single GS and a set of GSs are intrinsically safe if they guarantee touch/step voltages permanently permissible for an assigned ground fault value. A new definition of global grounding systems (GGSs) is proposed, revising that offered by the Standards IEC 61936-1/EN 50522. A safety criterion, useful for urban and industrial areas with reduced accessibility, allows identifying the safety zone of influence, and the intrinsically safe condition of a single GS and of a GGS, constituted by a set of interconnected single GSs.File | Dimensione | Formato | |
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