标准号:IS 1777-1978
发布日期:1979/3/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard covers a range of general type of industrial luminaire with metal reflectors for use with incandescent, fluorescent, mercury-vapour and other high pressure gas discharge lamps.1.2 Special purpose luminaires, such as those used in mines, collieries, acidic and dusty atmospheres, are not covered by this standard. Luminaires with low pressure sodium vapour lamps are also not covered in this standard.