Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 61
Fig. 3.—Gds Lij^hting (low pressure) of a small workshop with well-screened lamps.Illumination, provided by hjcal lights, on the benches on the right, 13—20 ft.-candles ; on thetables in the centre of the room the general illumination was 57—10.5 ft.-candles ; at floor-level in gangway, 61—71… … Fig. 4.—Local Electric Lighting in a Printing Works. Illumination on the tables, 7--11 ft.-candles ; in gangway, 1—3 ft.-candles (approx.). The lighting here is on an exceptionallygenerous scale and the illumination was aided by reflection from light walls and ceiling.In another room, also well…
Lighting
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