Multi-element metallic cables used in analogue and digital communication and control - Sectional specification for screened cables characterized up to 250 MHz. Horizontal and building backbone cables Ingestion-build-256245 It covers systems for

It covers systems for

The rules for merging in Topic Maps are also defined

A3 and B optical fibres

General conduct

Multi-element metallic cables used in analogue and digital communication and control - Sectional specification for screened cables characterized up to 250 MHz. Horizontal and building backbone cables Ingestion-build-256245 It covers systems for1 Scope EN 5028851 is a sectional specification for screened cables, characterised from 1 MHz up to 250 MHz, to be used in horizontal and building backbone wiring as defined in EN 50173. This sectional specification contains the electrical, mechanical, transmission and environmental performance characteristics of the cables, when tested in accordance with the referenced test methods. This sectional specification is to be read in conjunction with EN