This standard specifies the energy efficiency rating criteria, limited values of energy efficiency, evaluating values of energy conservation, test methods and inspection rules for common high-pressure sodium vapour lamps (hereinafter referred to as high-pressure sodium vapour lamps).
This standard is applicable to the high-pressure sodium vapour lamps used for indoor and outdoor illumination with transparent glass envelope, which the power range is 50W~l000W and is equipped with corresponding ballast and trigger with normal start-up and burning point within 92%~106% of rated voltage.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
4 Technical Requirements
4.1 Basic Requirements
4.2 Energy Efficiency Rating Criteria and Lumen Maintenance
4.3 Limited Values of Energy Efficiency and Lumen Maintenance
4.4 Evaluating Values of Energy Conservation and Lumen Maintenance
5 Test Methods
5.1 Mean Initial Luminous Efficacy
5.2 Lumen Maintenance
6 Inspection Rules
6.1 Acceptance Inspection
6.2 Routine Inspection
