prEN 45509

Guide for procurement - Control and instrumentation - Central equipment prEN 45509

Scope

This standard gives guidance on writing the technical specification for the procurement of the central equipment of control and instrumentation (C&I). This Guide 7.2 Central equipment includes: signal conditioning; signal transmission; open-loop control; closed-loop control; protection and interlocking; annunciation and alarm systems; equipment rooms; computers; power supply facilities and is part of a collection of standards for other C&I equipment.