Element of industrial plants. Fixed metal ladders with or without caged ladder. Anti-intrusion protection device barring access to the ladder.

This specification outlines safety requirements for fixed metal ladders associated with industrial equipment components, specifically addressing those equipped with or without cage-style elevator rooms. The document establishes mandatory criteria for the design and installation of guard protection systems intended to prevent unauthorized entry into the interior of the ladder structures. These protective measures are critical for maintaining a safe working environment in industrial settings where access via vertical ladders is necessary. The guidelines focus on the structural integrity of the supports and the geometric configuration of the barriers to ensure they effectively deter intrusion while allowing authorized maintenance personnel safe access when required. By defining precise technical parameters for these components, the text aims to reduce the risk of accidental falls and unauthorized occupation of the ladder shafts. It serves as a technical reference for manufacturers and installers to ensure compliance with established safety protocols for fixed access equipment in industrial facilities.