IS 7785 : Part 5 : Sec 1 : 1981 Elevated type aerodrome lighting fittings: Part 5 Approach lighting fittings, Section 1 High intensity elevated approach lighting fittings

1. Scope

1.1 This standard (Part V/Sec 1) specifies requirements for the photometric performance and the essential mechanical and electrical features (excluding lamps) of high intensity elevated fittings with uni-directional light distributions for aerodrome approach lighting.