標準號：IS 3528-1966
發布日期：1966/7/1 12:00:00
實施日期：1999/12/31 12:00:00
適用范圍：1.1 This specification covers electric lighting fittings which are proof against damage or deterioration due to entry of water and designed for use at supply voltage not exceeding 250 volts and for the enclosure of tungsten filament or electric discharge lamps.1.2 The fittings covered by this standard are classified according to the type of construction and method of test specified as:a) Drip-proof lighting fittings,b) Rain-proof lighting fittings, andc) Jet-proof lighting fittings.1.3 This standard does not cover luminaires for streetlighting ( see IS : 2149-1962〓 ), watertight and submersible electric lighting fittings (see IS:3553-1966〓).