Copyright 2005 by Bill Phillips. Click here for terms of use. in .NET

Print QR-Code in .NET Copyright 2005 by Bill Phillips. Click here for terms of use.

Copyright 2005 by Bill Phillips. Click here for terms of use.
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Figure 10.1 The Maxi-Mogul is a popular high-security cylinder for detention facilities. (Folger Adam Company)
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Electric Strikes Heavy-duty electric strikes are often used in detention centers because the devices provide both mechanical and electric access control. A low- or medium-security detention facility might use them for individual confinement rooms, but they re not a good choice for individual cells in a maximum security prison. Electric strikes are often used to create a mantrap system a way of controlling access to a restricted area by using two electrically interlocked doors. A mantrap requires a person to walk through and close one door before the second door can be opened. That allows a prisoner to be inspected, searched, or detained before gaining access to a more restricted area. Highly sophisticated mantraps incorporate closed-circuit televisions (CCTV), intercoms, and security guards. A mantrap uses a door monitor switch at each door with a connecting switch to the electric strike power leads of the opposing door. The switch acts as a power inhibitor to the opposing strike, so when one door is opened, power is cut to the second door. Only after the first door has been closed can the second be opened. While the second door is open, the first door remains locked.
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Choosing the Right Equipment In addition to knowing the security levels of the facility and its specific areas, you need to answer the following questions before choosing equipment:
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What types of doors need to be secured (sliding, swinging, wood, metal, etc.) What functions must the locks perform Do the locks need to operate mechanically or electromechanically Do the locks need to be motor or solenoid operated
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Detention Locks and Hardware
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The answers to these questions will help you choose among equipment, such as that described in the following pages.
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Southern Steel 802 electric deadbolt.
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The 802 is a mortise lock that provides swinging doors with auxiliary security locking and unlocking from a remote location (Fig. 10.2). It can be unlocked electrically from remote control or by key switch or pushbutton at the door. It automatically deadlocks when the door is closed, but it has no protruding deadlatch mechanism accessible to inmates when the door is open. The lock is nonhanded and is activated by dual 115 Vac solenoids for power locking and unlocking. The case and cover are made of cold-rolled steel plate. It measures 49 16 13 4 9 inches and weighs 9 pounds. The lock s stainless steel bolt is 5 8 inch in diameter with a 9 16-inch throw. Special versions include:
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802KR, which is equipped with a mogul cylinder for mechanical unlocking by key at the door and activated by dual 115 Vac solenoids for power locking and unlocking 802FL, which is activated by one 24 Vdc solenoid for power unlocking and has a bolt that is extended automatically when power is interrupted (fail secure) 802FU, which is activated by one 24 Vdc solenoid for power locking and has a bolt that retracts automatically when power is interrupted (fail secure)
Southern Steel 1010 deadlock.
The 1010 lock is a key-operated lock designed for swinging doors on access panels, plumbing chases, control cabinets, and other areas that require only
Figure 10.2 The
802 Electric deadbolt provides swinging doors with auxiliary security locking from a remote location. (Southern Steel)
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minimum security. Figure 10.3 shows a model 1010 deadlock. According to Southern Steel s technical manuals, the lock shouldn t be used on exterior doors that directly contact the inmate population. Some jails do ignore that advice. The lock has four holes in its corners that are used for mounting the lock to a door and securing the cover plate on the lock case. A fifth screw holds the cover plate in place; that screw hole is hidden behind a sticker on the case. You have to peel up the lower right corner of the sticker to gain access to the screw hole. The lock measures 41 4 11 4 3 inches and weighs 41 2 pounds. The cover is made of cold-rolled steel plate and the case is malleable iron. The bolt is yellow brass and measures 11 2 3 4 inches with a 5 8-inch throw.
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