Steel burglar-resistant doors have to be in complience with the required legislative norms and guarantee safety against unauthorised persons.
The construction of such doors has to be particularly resistant to burglary so that any interference from the outside will not cause any deformation, damage, etc.
PN-EN 1627 currant norm establishes 6 classes of door resistance to burglary beginning with RC1N to RC6 concerning the highest class of resistance. Elements such as locks, hardware or locking cylinders as well as glazing or ventilation grilles must guarantee safety.
RC2 and RC4 classes are used in the production of burglar-resistant doors by Metalpol. Second class steel doors can be equiped in ventilation grille and glazing with special anti-burglary glass (P4A minimum). Fourth class steel doors can be equiped in ventilation grille that allows air circulation guarantee safety.
In order to serve as burglar-resistant doors, they have to be assembled properly otherwise even the highest class of resistance to burglary will not guarantee safety.
The norm clearly defines what elements are required for each door class, for example RC2 class requires third class locks ( 7th sign in the lock description according to PN-EN 12209 norm), while hardware requires second class (7th sign according to PN-EN 1906 norm).
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