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BS ISO 6742-4:2023

BS ISO 6742-4:2023

$142.49

Cycles. Lighting and retro-reflective devices – Lighting systems powered by the cycle’s movement

Published By Publication Date Number of Pages
BSI 2023 26
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Requirements for lighting systems powered by the cycle’s movement
4.1 General
4.2 Corrosion resistance
4.3 Water resistance
5 Requirements for open system
5.1 General
5.2 Front lights for open system
11 5.3 Rear lights for open system
12 5.4 Generators for open system
5.4.1 General characteristics of generators
5.4.2 Frictional drive generator
5.4.3 Positive drive generator
13 6 Requirements for closed system
6.1 General
6.2 Photometrical performance requirement between 5 km/h and 15 km/h
6.3 Photometrical performance requirement 15 km/h or higher
6.4 High speed endurance requirement
7 Test methods
7.1 Corrosion testing for both system
7.2 Water resistance for both system
7.3 Front lights for open system
7.4 Rear lights for open system
14 7.5 Generators for open system
7.5.1 General characteristics of generators
7.5.2 Frictional drive generators
16 7.5.3 Positive drive generators
17 7.6 Test methods for closed system
7.6.1 Power measurement
7.6.2 High speed endurance test
8 Instructions
9 Marking
9.1 Requirement
18 9.2 Durability test
9.2.1 Requirement
9.2.2 Test method
19 Annex A (normative) Electronic load for power-measurement of LED generators
21 Annex B (informative) Efficiency calculation
22 Annex C (informative) Verification of the electronic load
24 Bibliography

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BS ISO 6742-4:2023
$142.49