This part of IEC 63044 provides the functional safety requirements for HBES/BACS.
In addition, it defines functional safety requirements for the interface of equipment intended to be connected to an HBES/BACS network. It does not apply to interfaces to other networks.dition 1.0 2021-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Home and building electronic systems (HBES) and building automation and control systems (BACS) – Part 4: General functional safety requirements for products intended to be integrated in HBES and BACS Systèmes électroniques pour les foyers domestiques et les batiments (HBES) et systèmes de gestion technique du batiment (SGTB) – Partie 4: Exigences générales de sécurité fonctionnelle pour les produits destinés à être