EN IEC 63044-3:2018

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
4 Classification of HBES/BACS network interfaces
5 Safety requirements and compliance criteria
6 Requirements
Annex A (informative) - List of product standards for electrical safety
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications
Annex ZZ (informative) - Relationship between this European
         standard and the safety objectives of Directive 2014/35/EU
         [2014 OJ L96] aimed to be covered

IEC63044-3:2017 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 an 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 of other networks is a dedicated ICT network covered by IEC62949. This document 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 and their interfaces, and
• cabling and interconnection of devices

• protection from hazards in the device;
• protection from overvoltages on the network;
• protection from touch current;
• protection from hazards caused by different types of circuit;
• protection of the communication wiring from overheating caused by excessive current.