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;

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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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