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Priority to CS281469ApriorityCriticalpatent/CS148374B1/cs
Priority to DE19702018281prioritypatent/DE2018281A1/de
Priority to FR7014102Aprioritypatent/FR2041185B1/fr
Priority to GB1840070Aprioritypatent/GB1293046A/en
Publication of CS148374B1publicationCriticalpatent/CS148374B1/cs
H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
H02H11/002—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of inverted polarity or connection; with switching for obtaining correct connection