IEC 63044-6:2021 specifies the requirements for planning and installation of HBES/BACS and the supporting infrastructure.Radio frequency (RF) HBES/BACS are also considered.Safety requirements are covered by IEC 60364 (all parts).Information and communication technology (ICT) and broadcasting and communication technology (BCT) network installations are typically interfaced with HBES/BACS.The requirements for ICT and BCT network installations are covered by ISO/IEC 14763-2.This document does not cover HBES/BACS implementation with:- optical fibre,- power lines,- power over Ethernet (PoE).