First of all, please use code fencing (How to ask a good question / Help Us Help You)
I can’t see what your plan is, but I think you can solve it with a timer:
rule “Alarm”
when
Item Door_Status changed
then
createTimer(now.plusMinutes(1), [|
if (Door_Status.state == OPEN && Corridor_Right.state == ON)
{
Kitchen_Left.sendCommand(ON)
Gateway_SoundVolume.sendCommand(20)
Gateway_Sound.sendCommand(1)
}
]
end