Light Poles White Paper Cooper Industries（光波兰人白皮书库柏工业）.pdfVIP

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Light Poles White Paper Cooper Industries（光波兰人白皮书库柏工业）.pdf

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Light Poles White Paper Cooper Industries（光波兰人白皮书库柏工业）

White Paper WP513001EN January 15, 2016 Light poles Publication/ A guide to the selection, installation and maintenance including the cause presentation and effects of pole vibration. details 1.1 General EPA = Actual Wind Silhouette of an Object x Cd. Richard Briden, PE • MH (mounting height in feet) Light poles or lampposts, are ‘engineered’ structures designed to support single or multiple The height at which a fixture is mounted measured luminaires. They may also be used to support from the pole base, not the length of the pole. signs, pennants, banners, flower pots, and other For example, floodlights may be mounted on decorative items. brackets which may locate the fixtures above the top of the pole. 1.2 Function • OTM (over-turning bending moment in The primary function is to resist the physical foot-pounds) forces of luminaire weight, ice and wind loads The bending moment (force times distance) that poles may encounter over their expected caused by the wind force acting on the pole design life. Along with the foundation system, the and fixtures, which tend to topple the pole or primary force a pole must withstand is from wind. foundation. See Figure 7 on Page 7. Because of the variety of pole shape