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Document ID (ISN)22511
CIS number 75-327
Year 1974
Convention or series no.
Author(s) Lauerer F.
Title Degree of protection with connection to neutral by a separate protective conductor and with classic connection to neutral
Original title Schutzwert der Nullung mit besonderem Schutzleiter gegenüber der klassischen Nullung [in German]
Bibliographic information Forschungsbericht Nr.119, Bundesanstalt für Arbeitsschutz und Unfallforschung, Martener Strasse 435, 46 Dortmund-Marten, Germany (Fed.Rep.), 1974. 81p. Illus. 47 ref. Price: DM.10.50.
Abstract Statistical bases of this evaluation and history of connection to neutral by (1) local connection of the non-current-carrying parts to the neutral conductor and (2) by the intermediary of a separate protective conductor, made compulsory in the German Federal Republic in 1970. Statistical analysis of 860 fatal electrical accidents, and calculation of the degree of protection. The low degree of protection assured by connecting to neutral by means of a separate conductor backs up the misgivings of experts concerning the general use of this system. Study of the technical reasons for this poor efficacity.
Descriptors (primary) electricity; earthing to neutral; evaluation of control measures; accident research; electrical safety
Descriptors (secondary) Germany (Federal Republic of); fault current protection; human failure; statistical evaluation; electrical accidents; causes of accidents; legislation; fatalities
Document type E - Books, reports, proceedings
Subject(s) Electricity
Broad subject area(s)
Browse category(ies) Electricity
Accident research