Skip to main content
Tagasi

EVS-EN 61810-2:2011

Electromechanical elementary relays -- Part 2: Reliability

Üldinfo

Kehtetu alates 16.10.2017
Alusdokumendid
IEC 61810-2:2011; EN 61810-2:2011
Tegevusala (ICS grupid)
29.120.70 Releed
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
16.10.2017
Põhitekst
04.05.2011
Põhitekst
Põhitekst
EVS-EN 61810-2:2009
This part of IEC 61810 covers test conditions and provisions for the evaluation of endurance tests using appropriate statistical methods to obtain reliability characteristics for relays. It should be used in conjunction with IEC 61649. This International Standard applies to electromechanical elementary relays considered as non-repaired items (i.e. items which are not repaired after failure), whenever a random sample of items is subjected to a test of cycles to failure (CTF). The lifetime of a relay is usually expressed in number of cycles. Therefore, whenever the terms “time” or “duration” are used in IEC 61649, this term should be understood to mean “cycles”. However, with a given frequency of operation, the number of cycles can be transformed into respective times (e.g. times to failure (TTF)). The failure criteria and the resulting characteristics of elementary relays describing their reliability in normal use are specified in this standard. A relay failure occurs when the specified failure criteria are met. As the failure rate for elementary relays cannot be considered as constant, particularly due to wear-out mechanisms, the times to failure of tested items typically show a Weibull distribution. This standard provides both numerical and graphical methods to calculate approximate values for the two-parameter Weibull distribution, as well as lower confidence limits.

Nõutud väljad on tähistatud *

*
*
*
PDF
24,40 € koos KM-ga
Paber
24,40 € koos KM-ga
Sirvi standardit alates 2,44 € koos KM-ga
Standardi monitooring

Teised on ostnud veel

Põhitekst

EVS-EN 61810-3:2015

Electromechanical elementary relays - Part 3: Relays with forcibly guided (mechanically linked) contacts
Uusim versioon Kehtiv alates 07.05.2015
Põhitekst

EVS-EN 61810-1:2015

Electromechanical elementary relays - Part 1: General and safety requirements
Uusim versioon Kehtiv alates 07.05.2015