EVS-EN IEC 63044-3:2018+A1:2025

This document specifies the electrical safety requirements for HBES/BACS.
In addition, it defines safety requirements for the interface of equipment intended to be connected to an HBES/BACS. It does not apply to interfaces to other networks.
NOTE An example of other networks is a dedicated ICT network covered by IEC 62949.
This document covers the following requirements and compliance criteria:
•  protection against hazards from the device;
•  protection against overvoltages on the network;
•  protection against touch current;
•  protection against hazards caused by different types of network;
•  protection of the communication wiring against overheating caused by excessive current.