Electric locking systems, also known as door terminals, lock doors in escape routes as intended and release them on request in the event of danger, e.g. by a fleeing person. They are available in variable modular design or as a compact device and are used in special cases when the way to the outside is to be made more difficult by an escape door, e.g. in kindergartens or nursing homes. The door can only be opened after an emergency button has been pressed, and depending on the equipment, an optical/acoustic alarm is sometimes triggered, which can also be passed on to a control panel. The central release of the door by a permanently occupied position, e.g. a porter's lodge, is also possible.
Requirements for electrical locking systems are regulated by the Directive on Electrical Locking Systems of Doors in Escape Routes (EltVTR), which is a technical building regulation introduced by the Building Rules List and therefore has a legally binding character. Electrical locking systems consist of the following components:
The door is held closed by the electric lock, which is visually similar to a conventional door lock, but is installed in a different place and in addition to a door lock approved in accordance with DIN EN 179, for example. The door is opened by interrupting the power supply for electrical locking, either
Source: bauwion
