DIN EN 50491-3-2010 家庭和建筑电子系统(HBES)和建筑自动化和控制系统(BACS)用一般要求.第3部分:电气安全性要求.德文版本EN 50491-3-2009
General requirements for Home and Building Electronic Systems (HBES) and Building Automation and Control Systems (BACS) - Part 3: Electrical safety requirements; German version EN 50491-3:2009
This European Standard provides the electrical safety requirements for all devices connected to HBES/BACS and shall be used in conjunction with relevant product safety standards. It 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 cabling and interconnection of devices. This European Standard covers requirements and compliance criteria for 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 and protection of the communication wiring from overheating caused by excessive current.