IEC 63044-5-3:2017 is a product family standard that sets the minimum level of EMC performance for the HBES/BACS network in addition to the product EMC standards for HBES/BACS devices. It also applies to devices used within an HBES/BACS network for which no specific HBES/BACS product EMC standard exists. In addition, it defines EMC 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 of other networks is a dedicated ICT network covered by CISPR 22 and 23.
This document specifies EMC requirements for HBES/BACS to be installed in industrial environments, according to the definition given in IEC 61000-6-2.
NOTE Industrial environment covers the office spaces that may be present in industrial premises. Industrial automation systems are outside the scope. This document is applicable (but not limited) to

• operator stations and other human–system interface devices,
• devices for management functions,
• control devices, automation stations and application-specific controllers,
• field devices and their interfaces,
• cabling and interconnection of devices,

used within a dedicated HBES/BACS network. This publication is to be read in conjunction with IEC 63044-5-1:2017.