This IEC Standard provides the electrical safety requirements related to the HBES/BACS network in addition to the product safety standards for HBES/BACS devices. It also applies to devices used within a HBES/BACS network for which no specific HBES/BACS product safety standard exists. In addition, it defines 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. Note: an example for other networks is a dedicated ICT network covered by IEC 62949. This IEC Standard is applicable to operator stations and other human system interface devices, devices for management functions, control devices, automation stations and application specific controllers, field devices, cabling and interconnection of devices. used within a dedicated HBES/BACS network. This IEC Standard covers the following requirements and compliance criteria: protection from hazards in the device; protection from overvoltages on the network; protection from touch current; protection from hazards caused by different type of circuits; protection of the communication wiring from overheating caused by excessive current.