Typical application: Ladder for building maintenance
The topmost rung must be at the exit level.
From an access height of 10,000 mm, the ladder shall be installed with an off set. The maximum length of a ladder section must not exceed 10,000 mm, an intermediate platform shall be designed as a resting platform for lengths in excess of 6,000 mm.
The off sets shall be arranged at equal intervals. It may, however, be designed at a different height on request or through the online configurator.
Distance of the rung-leading-edge of the ladder to the wall must be at least 150 mm.
If off sets are not possible for structural reasons, the ladder may also be designed longer than 10,000 mm in one single-section. In this case, the off set must be replaced with a resting platform.
The gap between the access ladder and the exit level shall not be greater than 75 mm. This is provided in the case of a standard wall distance between ladder and building of 210 mm by an exit step.