Luminaires - Teil 2 - 23 : particular requirements Extra low - voltage lighting systems for filament lamps.

灯具.第2-23部分: 特殊要求.白炽灯用备用低压照明系统.

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The distance between the reference plane and the plane of the luminaires.

参考平面与灯具平面之间的距离.

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Photometer for measuring the directional light distribution characteristics of sources or luminaires.

测量光源或灯具定向光线分布特性的光度计.

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Fibre Glass, Candle Holders, Luminaires Picture Frame , Panels, Trimmings, Tablewares.

采购产品纤维玻璃, 蜡烛烛台,照明器具, 画架, 嵌板, 装饰品, 餐具.

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Luminaires - Part 2 - 3 : particular requirements - Luminaires for road and street lighting.

灯具.第 2-3 部分: 特殊要求.道路和街道照明用灯具.

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Ratio of the utilized flux to the luminous flux leaving the luminaires.

被利用的光通与离开灯具的光通量之比.

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Amendment 2 - Luminaires - Part 2 - 22 : Particular requirements - Luminaires emergency lighting.

修改件2.灯具.第2-22部分: 凹槽式灯具的特殊要求.

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Luminaires - Part 2 - 22 : particular requirements - Luminaires for emergency lighting.

灯具.第 2-22 部分: 特殊要求.应急照明用灯具.

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Luminaires . Part 2: particular requirements. Section 23: extra low - voltage lighting systems for filament lamps.

灯具. 第2部分: 特殊要求. 第23节: 白炽灯用超低压照明系统.

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It refers to the ratio of spacing of luminaires to calculated height of luminaires.

灯具的间距与灯具计算高度之比.

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A road - lighting arrangement in which the luminaires are placed on one side only of a carriageway.

灯具只被安放在车道一侧的道路照明布灯方式.

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A road - lighting arrangement in which the luminaires are placed alternately on either side of the carriageway.

道路照明布灯方式,此时灯具被轮流安放在车道两侧.

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