ANSI/BHMA A156.23-2017 pdf free download.Electromagnetic Locks.Here are some details.
ANSI/BHMA A156.23-2017 establishes requirements for electromagnetic locks and includes cyclical, dynamic, operational, strength and finish tests. This product is used for access control.
1. SCOPE
1.1 This Standard establishes requirements for electromagnetic locks and includes cyclical, dynamic, operational, strength and finish tests. This product is used for access control.
1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance, and environmental conditions.
1.3 No lock can provide complete security by itself. Locks may be technical means, or evaded by entry elsewhere on the property. No caution, awareness of your environment, and common sense. Builders multiple performance grades to suit the application. In order to enhance consult a qualified locksmith or other security professional.
1. 4 Grade Qualifications
Two classifications of tests are described in this Standard, Operational and Security. Manufacturers shall indicate the Grade level. A Grade I product shall meet all Grade I criteria, a Grade 2 product shall meet all Grade 2 criteria, and a Grade 3 product shall meet all Grade 3 criteria in each classification.
2. DEFINITIONS
2.1 Armature A plate attracted by the energized electromagnet component of the lock and when in contact with the magnet, resistant to being separated from the magnet. Also called a strike.
2.2 Electromagnetic Lock. An electrically powered lock. It locks or unl(xks a door by the activation or deactivation of an electromagnet coupled to an armature.
2.2. I I)irect Pull The mounting arrangement of an electromagnetic door lock whereby an opening force applied to the face of the door is directly opposed by the attraction of the magnet and armature along an axis perpendicular to the face of the door, which is obtained when the contact plane between magnet and armature is parallel to the door face.
2.2.2 Shear Lock The mounting arrangement of an electromagnetic door lock whereby the attraction between electromagnet and armature moves one or the other (usually the smaller armature) not only into contact with each other but also into a position of mechanical restraint by a third member which prevents sliding separation (shear) of the magnet and armature along their contact plane. To unlock, the moving member is then retracted into its original resting position by mechanical, magnetic, gravitational, or other force.
ANSI/BHMA A156.23-2017 pdf download
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