In a switchgear if there are more than one possible feed (including bus coupler) then lockout relay (86) contact of incoming breakers shall be connected in series in closing circuit of each of incoming breakers.
In a switchgear if there are more than one possible feed (including bus coupler)
then lockout relay (86) contact of incoming breakers shall be connected in series
in closing circuit of each of incoming breakers.
这句怎么理解，是什么意思啊
