VDE 0830-91-2-2018 Building intercom systems - Part 2: Requirements for advanced security building intercom systems (ASBIS) (IEC 62820-2:2017); German version EN IEC 62820-2:2018
Gebaeude-Sprechanlagen - Teil 2: Anforderungen an Sprechanlagen fuer Gebaeude mit gehobenen Sicherheitsanforderungen (SGGS) (IEC 62820-2:2017); Deutsche Fassung EN IEC 62820-2:2018
Building intercom systems - Part 2: Requirements for advanced security building intercom systems (ASBIS) (IEC 62820-2:2017); German version EN IEC 62820-2:2018 是非强制性国家标准,您可以免费下载前三页