prEN 50174-2:2026

This document specifies requirements for the following aspects of information technology cabling:
a)  planning;
b)  installation practice.
This document is applicable to all types of information technology cabling inside buildings (and can be applied to cabling that is defined as part of the building) including generic cabling systems designed in accordance with the EN 50173 series.
NOTE  Planning and installation of certain types of application-specific cabling can be supplemented by other standards e.g. EN 63044–6 for Home Building Electronics System (HBES) and Building Automation and Control Systems (BACS).
The requirements of Clauses 5, 6 and 7 of this document are premises-independent unless amended by the requirements of premises-specific clauses.
This document:
1)  contains requirements and recommendations for satisfactory installation and operation of information technology cabling;
2)  describes the methodology for the assessment of spaces, pathways (and pathway systems) and cabling (either installed or planned) in support of remote powering objectives;
3)  excludes specific requirements applicable to other cabling systems (e.g. power supply cabling); however, it takes account of the effects other cabling systems have on the installation of information technology cabling (and vice versa) and gives general advice;
4)  excludes those aspects of installation associated with the transmission of signals in free space between transmitters, receivers or their associated antenna systems.
This document is applicable to certain hazardous environments. It does not exclude additional requirements which are applicable in particular circumstances, defined by e.g. electricity supply and electrified railways.
Safety (electrical safety and protection, optical power, fire protection, etc.) and electromagnetic compatibility (EMC) requirements are outside the scope of this document and are covered by other standards and regulations. However, information given in this document can be of assistance in meeting these standards and regulations.