NEMA C136.19
NEMA C13619 2011-JAN-01 For Roadway and Area Lghtng EqupmentHgh-Pressure Sodum and Retroft Hgh-Pressure Sodum Lamps for Mercury Ballasts - Gude for Selecton
NEMA C13619 2011-JAN-01 For Roadway and Area Lghtng EqupmentHgh-Pressure Sodum and Retroft Hgh-Pressure Sodum Lamps for Mercury Ballasts - Gude for Selecton
This standard covers the selection of high-pressure sodium lamps recommended for use in roadway and area lighting equipment.