are capable of reacting to an initial breakdown or failure detected so as to remain either in a state that guarantees safety, in a lower operating mode or in a fail-safe state;
go mbeidh siad in ann freagra a thabhairt ar chliseadh tosaigh nó ar theipeadh a aimsítear ionas go bhfanfaidh siad i staid lena ráthaítear sábháilteacht, i modh oibríochta níos ísle nó i staid lena gcuirtear cosc ar theipeadh;