This paper introduces a characterization of a single Grounding System (GS) or a set of interconnected GSs, according to their safety level and defines their condition of “conventionally safe” and “intrinsically safe”. GSs or a set of them are intrinsically safe, if they guarantee safe touch/step voltages permanently permissible for an assigned ground fault value. It is proposed a new definition of Global Grounding Systems (GGSs) revising that offered by the Standards IEC 61936-1/EN 50522. The paper suggests a safety criterion, useful for urban and industrial areas with reduced accessibility, that allows to identify 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.
Single grounding system intrinsically safe and global grounding system safe as set / Parise, Giuseppe; Parise, Luigi; Martirano, Luigi. - STAMPA. - (2016), pp. 1-6. (Intervento presentato al convegno 16th International Conference on Environment and Electrical Engineering, EEEIC 2016 tenutosi a Florence, Italy nel 2016) [10.1109/EEEIC.2016.7555759].
Single grounding system intrinsically safe and global grounding system safe as set
PARISE, Giuseppe;PARISE, LUIGI;MARTIRANO, Luigi
2016
Abstract
This paper introduces a characterization of a single Grounding System (GS) or a set of interconnected GSs, according to their safety level and defines their condition of “conventionally safe” and “intrinsically safe”. GSs or a set of them are intrinsically safe, if they guarantee safe touch/step voltages permanently permissible for an assigned ground fault value. It is proposed a new definition of Global Grounding Systems (GGSs) revising that offered by the Standards IEC 61936-1/EN 50522. The paper suggests a safety criterion, useful for urban and industrial areas with reduced accessibility, that allows to identify 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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