FIRE EXTINGUISHER CONTROL

摘要

1497009 Fire protection and guard system SECURITY PATROLS CO Ltd 8 Oct 1976 [26 July 1976] 41954/76 Heading ASA A fire - extinguishing system 40 coupled with an intruder guarding system, both protecting the same region 10, is provided with a switching manipulator 24 to switch both fire extinguishing system and guarding system from their inoperative to their operative automatic condition and vice versa. A specific voltage is fed by 24 to terminals in logic circuits of both systems to effect the switch-over.