China YDZ-48QS Marine Wired Talk-Back Main Unit:
YDZ-48QS Marine Wired Talk-Back Main Unit
1)DNV RULES FOR CLASSIFICATION SHIPS.
2)DNV-CG-0339:2021 Environmental test specification for electrical, electronic and programmable equipment and systems
3)IEC 60945:2002 "Marine Navigation and Radio Communication Equipment and Systems - General Requirements - Test Methods and Test Result Requirements'
4)IMO Resolution A.1021 (26) "2009 Alert Indicators and Indicators Rules"
5)IEC 60092-504:2016 "Marine Electrical Equipment Part 504: Special Sections Control and Instruments'
6)IACS UR E10 Rev.7 "Test Specifications for Type Approval of Electrical and Electronic Equipment"
Colour: RAL9005
Power supply: DC24V
Alarm sound level: ≥75dB
IP rating: IP22
Hull Material: Q235B