HPS FOR WASHINGTON, D. C.

被引：0
|
作者：
Basaran, Suat
机构：
来源：
Lighting Design and Application: LD and A | 1975年 / 5卷 / 04期
关键词：
ELECTRIC LAMPS; METAL VAPOR - FUEL ECONOMY;
D O I：
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中图分类号：
学科分类号：
摘要：
Overall nighttime crime incidents in four test areas in Washington, DC, have dropped approximately 50% during the 24-month period following the installation of high-pressure sodium lights. However, although 2187 new lights were added and 18,500 existing luminaires converted to high-pressure sodium by the end of 1973, energy consumption was reduced by 222,000 kilowatt-hours, while the lumen output was increased by 500,000,000.
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页码：26 / 27
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