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So that you feel completely safe, Internorm windows are fitted with a basic security standard. For more security two additional designs are available in Resistance Class 1 and 2.


Standard quality fittings - the Internorm basic security standard. Internorm window systems are protected from break-ins by a security pin and a security point lock as standard.		Basic security


Protection in all corners with WK1 - Resistance Class 1 ) In the tested Resistance Class 1 (WK1), the window is protected in all four corners by special fitting elements as well as an anti-boring protection on the mechanism. Furthermore it is fitted with a lockable handle and 6mm glass (thicker glass is also possible). The window is fitted with dowels or screws. Security advantages:** [ ] Resistance to force of pressure of up to 3.000 Newton (approx. 300Kg) [ ] Further testing with sand bag, which falls from 800mm onto the window. This does not allow entrance through the opening ( In accordance with DIN V ENV 1627ff).		WK1 - Resistance Class 1 (adjacent fitting)


Safety without compromise with WK2 - Resistance Class 2 ) Internorm windows with resistance class 2 are fitted all round with special fitting elements and a lockable handle. Additional protection is offered by the anti-break-in pane in the Class P4A (in accordance with EN 356). The window is fitted with dowels or screws. Additional Security advantages:** [ ] In addition to the pressure-and-shock load, the window can also not be opened by manual attack (such as with wedges, pipe wrenches or screwdrivers) (in accordance with DIN V ENV 1627ff).		WK2 - Resistance Class 2

**) The tested design in Resistance Classes 1 and 2 corresponds to DIN V ENV 16277ff. In the case of the untested resistance classes at least one security element is not fitted.

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