ANNEX
RECOMMENDATION ON PERFORMANCE STANDARDS FOR DAYLIGHT SIGNALLING LAMPS
1 OBJECTIVES OF DAYLIGHT SIGNALLING LAMPS FOR CRAFTS
Daylight signalling lamps should be suitable for conveying information between ships, or between ship and shore, by means of light signals, both by day and by night.
2 APPLICATION OF THESE PERFORMANCE STANDARDS
These performance standards should be applied to daylight signalling lamps, which are required for certain ships pursuant to chapter V of the International Convention for the Safety of Life at Sea, 1974, as amended, chapter 8 of the International Code of Safety for High Speed Craft, in force, and chapter X of the Torremolinos Protocol of 1 993 relating to the Torremolinos International Convention for the Safety of Fishing Vessels, 1977.
3 RELATED REQUIREMENTS INVOLVED
The following standards should be additionally applied, as far as applicable:
- Resolution A.694 (17) on General Requirements for Shipborne Radio Equipment forming Part of the Global Maritime Distress and Safety System (GMDSS) and for Electronic Navigational Aids;
- Resolution A.813(19) on General Requirements for Electromagnetic Compatibility (EMC) for all Electrical and Electronic Ship's Equipment;
- IEC Publication 60945 "Maritime Navigation and Radiocommunication Equipment and Systems-General Requirements, Methods of Testing and Required Test Results"; and
- CIE Publication No. 2.2 "Colors of Light Signals".
4 DEFINITIONS
"Daylight signalling lamps" means lamps suitable for transmitting white light signals to an observer by focused light beams which may be fixed or portable.
"Switch-on time" means the period of time required for reaching 95% of the required luminous intensity after the daylight signalling lamp has been switched on.
"Switch off time" means the period of time required for luminous intensity to decrease to 5% of the required luminous intensity after the daylight signalling lamp has been switched off.
