
BUILDING INTERCOM SYSTEMS - PART 1-1: SYSTEM REQUIREMENTS - GENERAL
出版:International Electrotechnical Committee

專家解讀視頻
Defines the technical requirements for the composition, functions, performance, and test methods of general building intercom systems.
SN EN 62820-1-1 : 2016 - Identical
DIN EN 62820-1-1 : 2017 - Identical
VDE 0830-91-1-1 : 2017 - Identical
NF EN 62820-1-1 : 2016 - Identical
DS EN 62820-1-1 : 2016 - Identical
CEI EN 62820-1-1 : 1ED 2017 - Identical
PN EN 62820-1-1 : 2017 - Identical
BS EN 62820-1-1 : 2016 - Identical
NEN EN IEC 62820-1-1 : 2016 - Identical