Specification for road danger lamps. Part 4: High Intensity battery operated beacons.

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Year
Abstract

This part of the standard specifies requirements for high intensity electrically operated road danger beacons, which are designed to emit a uni- or bi-directional signal for warning of an obstruction or temporary hazard on a carriageway.

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Publication

Library number
B 5441 fo /73/
Source

London, British Standard Institution, 1973, 5 p.; BS 3143: Part 4: 1973.

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