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ISO/NP 25433-1 Ships and marine technology — Maritime searchlights — Part 1: General requirements

Scope

This document applies to searchlights, firefighting lights and day signalling lamps fitted to ships. Searchlights on board facilitate the detection of other vessels, offshore structures, obstructions to shipping, floating objects, and living things, shorelines, as well as fixed and floating sea marks and other aids to navigation, thus providing essential information to the navigator for safe navigation, collision avoidance and search and rescue of shipwrecked persons at sea.

Purpose

Daylight signalling lamps should be suitable for giving light signals, which can be clearly distinguished visually as separate signals by an observer. (MSC.95(72)

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