Letectví a kosmonautika - Jističe proti závadám oblouku, třípólové, teplotně kompenzované, jmenovitý proud 3 A až 25 A - Střídavé napětí 115 V při konstantní frekvenci 400 Hz - Část 001: Technická specifikace (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.4.2019
Designation standards: ČSN EN 4839-001
Classification mark: 311758
Catalog number: 506594
Publication date standards: 1.4.2019
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This European Standard specifies the three-poles temperature compensated arc fault circuit breakers without signal contacts, rated from 3 A to 25 A and used in aircraft on-board circuits. In any operating state a "trip-free" tripping is ensured. These Items are designed to protect aircraft wiring system from circuit overload and arc faults. It describes specific environmental, electrical and mechanical characteristics and the stringency of tests to be applied according to test methods of EN 3841-100. If the design of the arc fault circuit breakers contains software or complex hardware, as a minimum, the software and hardware shall be developed in accordance with RTCA DO-178B or C, DAL C and RTCA DO-254, DAL C, respectively. These circuit breakers are intended for use in aircraft with electrical supplies in accordance with EN 2282