DD ENV 50234:1997

Contents
1. Scope
2. Normative references
3. Definitions
3.1 Flashing light system
3.2 Flashing light
4. Assessment of general characteristics
4.1 General test requirements
4.2 Components of the system
4.3 Fundamental principles
4.4 Purpose, supplies and structure
4.5 Classification of external influences
4.6 Compatibility
4.7 Maintainability
4.8 Safety services
4.9 Environmental protection
5. Protection for safety
5.1 Protection against electric shock
5.2 Protection against thermal effects
5.3 Protection against overcurrent
5.4 Protection against over and under voltage
5.5 Isolation and switching
5.6 Electro-magnetic compatibility
6. Selection and erection of equipment
6.1 Common rules
6.2 Wiring systems
6.3 Switchgear and control gear
6.4 Earthing arrangements and protective conductor
6.5 Safety devices
7. Inspection and testing
7.1 Operation and reliability tests
7.2 Equipment tests
Annex A (informative): Proposal of flashing light
measurement

Gives general requirements for classification of flashing light systems used on airports or for aviation lighting systems that are ground based. Also, for the luminaires, control cabinets and for their mechanical and electrical construction erection, together with related tests.