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The principle behind an electromagnetic lock is the use of electromagnetism to lock a door when energized. The holding force should be collinear with the load, and the lock and armature plate should be face-to-face to achieve optimal operation.
A magnetic keyed padlock A magnetic keyed padlock. A magnetic keyed lock or magnetic-coded lock is a locking mechanism whereby the key utilizes magnets as part of the locking and unlocking mechanism.
The former Chubb factory in Wolverhampton, England, which is still known as the Chubb Building. Chubb Locks is a former brand name of the Mul-T-Lock subsidiary of the Assa Abloy Group, which manufactures locking systems for residential, secure confinement and commercial applications.
Physical security systems for protected facilities can be intended to: [2] [3] [4] deter potential intruders (e.g. warning signs, security lighting); detect intrusions, and identify, monitor and record intruders (e.g. security alarms, access control and CCTV systems);
American filmmaker David Lynch (pictured) dies at the age of 78.; South Korean president Yoon Suk Yeol is arrested after his declaration of martial law.; Joseph Aoun is elected president of Lebanon after a two-year vacancy, and Nawaf Salam is nominated as prime minister.
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