SN EN 50090-2-2 : 1996 AMD 1 2002

Foreword<br>1 Scope<br>2 Normative references<br>3 Definitions and abbreviations<br>&nbsp;&nbsp;&nbsp;&nbsp;3.1 Definitions<br>&nbsp;&nbsp;&nbsp;&nbsp;3.2 Abbreviations<br>4 Topology, cabling and power supply<br>&nbsp;&nbsp;&nbsp;&nbsp;4.1 Topology<br>&nbsp;&nbsp;&nbsp;&nbsp;4.2 Cabling<br>&nbsp;&nbsp;&nbsp;&nbsp;4.3 Power supply<br>5 Safety<br>&nbsp;&nbsp;&nbsp;&nbsp;5.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;5.2 Electrical safety requirements<br>&nbsp;&nbsp;&nbsp;&nbsp;5.3 Functional safety<br>6 Environmental conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;6.1 General<br>&nbsp;&nbsp;&nbsp;&nbsp;6.2 Classification of climatic environmental conditions<br>&nbsp;&nbsp;&nbsp;&nbsp;6.3 Basic requirements and tests based on IEC 68<br>7 Electromagnetic compatibility requirements<br>8 Reliability<br>Annex A (informative) Certification

Specifies the general technical requirements of a Home and Building Electronic System based on SELV or PELV. Covers cabling and topology, electrical and functional safety, environmental conditions and behaviour in the event of failures in addition to specific HBES installation use.