Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 219
Source. SB -I 3>4 . 11 Daylight. ^z. S •< > C! Areaofroom, sq.ft. 19S4 1727 4276 1S80 Height of room, ft. 14-;5 ia-5 12 10-7 (50) Height of light 11 10 S 5 No. of lamps 8 . 18 177 Top and SideWinduws (nO) Mean illumination, ft. candles, bench height 9-3 6-45 3-7 47 0(5-9) Energy consump-… … Fig. 5,-Stereo Foundrj- of Westminster Gazelle and Daili/ Chronide Illuminatedby Inverfcd Arc Lamps, ILLUMINATION OF FEINTING WORKS BY ELECTRICITY. 191 I liave not ventured to use this designa-tion, in spite of the tempting abbrevia-tion. If the efficiency figure of a systemof fighting is known, it…
Lighting
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