Depending on their use, fixed ladders fall within the scope of various national and European legal norms.
Are fixed ladders on buildings z. B. used for maintenance purposes or as emergency ladder systems in the fire service escape route.
They are part of the structural facilities and are therefore subject to the building regulations of the federal states, but not to the Industrial Safety Ordinance (BetrSichV). If fixed ladders are used by the insured at structural facilities in or at workplaces, the Federal Workplace Ordinance (ArbStättV) supplements the building regulations of the federal states. Requirements for fixed ladders in workplaces are contained in Section 1.8 “Traffic routes” and Section 1.11 “Fixed ladders, step irons” of the appendix to the Workplace Ordinance. The safety goal-oriented regulation text of both sections is specified in the workplace regulation ASR A1.8 "Traffic routes".
If fixed ladders are used in workplaces along the second escape route, the requirements of ASR A2.3 are also applicable
"Escape routes, emergency exits, escape and rescue plan" must be observed.
Fixed ladders as access to machine systems are subject to the BetrSichV and therefore not to workplace law.
Fixed ladders for installation in process engineering systems in the chemical industry are not dealt with in this information, as special regulations exist here (see DIN 28017 "Fixed access to process engineering apparatus"; in particular Part 3 "Fixed ladders").
This information compares the requirements for the creation and use of fixed ladders including fall protection as well as transfer and rest platforms on structural systems as well as in shafts or as access to mechanical systems.
Materials
Fixed ladders are to be made from durable materials.
The materials are to be used according to the respective operating conditions, e.g. B. with regard to the resistance to acids or alkalis. Depending on the area of application, certain materials are to be used. Components made of non-resistant materials must be protected against corrosion.
The corrosion protection depends in particular on the exposure to corrosion, the weather and the required protection period (see DIN EN ISO 12944).
Surefootedness
Fixed ladders must be sure-footed. This includes in particular the slip resistance of the rung tread, the design of which depends on the operational conditions. The tread depth of the rung must be at least 20 mm.
Entry and exit level
Entry and exit on fixed ladders must be safely accessible. For this purpose, the holding device is at least 1.10 m above the exit surface lead out.
3.1 General
Depending on the area of application, a distinction is made between fixed ladders
• Fixed ladders for structures,
• emergency ladder systems,
• Fixed ladders for manholes and structures in urban water management,
• Fixed ladders as access to machine systems.
Appendix 2 provides an overview of the types of fixed ladders and their requirements.
3.2 Fixed ladders for structures
General
The inclination of fixed ladders for structures is between 75 ° and 90 ° to the horizontal. If structural conditions make it necessary, the angle of fixed ladders with climbing protection devices can be more than 90 ° if the functionality and usability of the climbing protection device can be proven.
Entry and exit
The fixed ladder must begin immediately above the entry level and the top rung must be at the level of the exit point.
When using fall arrest equipment, the fall arrester must be attached to the fixed guide or the fall arrester connected to the full body harness from a secure location. In tower-like structures, e.g. B. chimneys, a pedestal can be provided as a secure stand.
Foot clearance
The vertical ladder must be mounted using sufficiently large mounting brackets so that the distance from the rung axis to the wall, including existing wall protrusions, is not less than 150 mm at any point.
Holding device
In the case of fixed ladders with or without back protection, a two-sided, easy-to-grip holding device must be available up to a height of at least 1.10 m above the exit point. This is e.g. B. given with pipe diameters between 30 and 50 mm.
5.1 Check after assembly
Evidence of the sufficient load-bearing capacity of the anchoring base and proper assembly must be provided individually for each construction project, at least in the case of fixed ladders for structural facilities and emergency ladders, and must be checked and approved by a responsible expert for stability. For new masts and chimneys as well as pure concrete and steel structures this can alternatively be confirmed by the building contractor (e.g. the responsible site manager).
5.2 Tests of the fixed ladder
Before each climbing the ladder must be checked visually by the instructed user to ensure that it is in proper condition.
The type, scope and deadlines of the recurring safety inspections of fixed ladders are based on the result of the risk assessment, taking into account the manufacturer's instructions. As a rule, the annual test is recommended; Depending on the result of the risk assessment, this period can be extended (e.g. in a dry environment) or shortened (e.g. in an aggressive environment).
The tests are to be carried out by an expert. The results of the tests must be documented.
Source: Excerpts from DGUV I 208-032 BG Bau