Standards & Certificates & Guidelines

Around a third of all fires start in buildings. There are often only a few minutes to leave a burning building before the smoke makes orientation so difficult that escape routes can no longer be recognized.  When it comes to circuit integrity maintenance, in the worst case it is a matter of life and death and, secondarily, sometimes considerable financial losses - so it is only logical that the legal requirements, standards and regulations are particularly high here.    

The basis for the circuit integrity maintenance of electrical systems is the MLAR in conjunction with the technical requirements for components in accordance with the Model Building Code (MBO).  

The MLAR describes the options for circuit integrity maintenance of cables and wires and, depending on the integrity maintenance class, these are classified as E30 (30 minutes), E60 (60 minutes) or E90 (90 minutes) in accordance with DIN 4102 Part 12.

The electrical cables themselves must also contribute to circuit integrity maintenance. In principle, two protection goals can be identified here: The aim here is to prevent or at least minimize the development of fire and the fire propagation, and to prevent the development of smoke and the formation of toxic gases.