Tagasi

IEC 60077-4:2019

Railway applications - Electric equipment for rolling stock - Part 4: Electrotechnical components - Rules for AC circuit-breakers

Üldinfo
Kehtiv alates 25.10.2019
Tegevusala (ICS grupid)
45.060.01 Raudtee veerem üldiselt
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
25.10.2019
Põhitekst
07.02.2003
Põhitekst
IEC 60077-4:2019 gives rules for AC circuit-breakers, the main contacts of which are connected to AC overhead contact lines; the nominal voltage of these circuits being in accordance with IEC 60850. This document, together with IEC 60077-2, states specifically: a) the characteristics of the circuit-breakers; b) the service conditions with which circuit-breakers comply with reference to: - operation and behaviour in normal service; - operation and behaviour in short-circuit; - dielectric properties; c) the tests for confirming the compliance of the components with the characteristics under the service conditions and the methods to be adopted for these tests d). the information to be marked on, or given with the circuit-breaker. This second edition cancels and replaces the first edition, issued in 2003. This edition includes the following main technical changes with regard to the previous edition: a) standard values of transient recovery voltages and test procedure are reviewed; b) procedure of verification of temperature rise is changed; c) air-tightness test as type test, insulation resistance measurement are added
*
*
*
PDF
194,45 € koos KM-ga
PDF redline
272,23 € koos KM-ga
Paber
194,45 € koos KM-ga
Standardi monitooring