Electrical news and engineering . connected to two will increase the capacity of the groundwood department to 400 tons ofground wood per day. Illumination of a New School at Lennoxville, Que. To maintain the high standard sought after in the newLennoxville school, careful consideration was given to alldetails of both the artificial and natural illumination tocreate the besl working condition- possible for the stu-dents. As a guide to the obtaining of the best nthe requirements laid down in the Code of LightingSchools of the Illuminating Engineering Society of NewYork were used. Intensity of Il
Electrical news and engineering . connected to two will increase the capacity of the groundwood department to 400 tons ofground wood per day. Illumination of a New School at Lennoxville, Que. To maintain the high standard sought after in the newLennoxville school, careful consideration was given to alldetails of both the artificial and natural illumination tocreate the besl working condition- possible for the stu-dents. As a guide to the obtaining of the best nthe requirements laid down in the Code of LightingSchools of the Illuminating Engineering Society of NewYork were used. Intensity of general the following desirable intensities of illum-ination, as called for in the Code of Lighting for Schwere used throughout: Artificial LightingLocality. Foot-Can>r Storage spaces Stairways, corridors Gymnasiums Rough shop work Auditoriums, assembly rooms ..> Class rooms, study rooms, libraries, labora-tories, blackboards :; :. Fine shop work Drafting rooms Daylight requirements were figured at least double theFigures for artificial all cases the desks were so arranged that the day-light would come from the left side, when the room hadwindows on one side only, and from the left and back. October 1, T II E ELECTR [CAL NEWS S3 svheo the room had windows on two sides. Window areaWas figured at least per cent, of the floor area and theratio of window height to room width not less Mian oneto two. The artificial lighting is of the semi-indirect type usingdense glass bowls fourteen inches in diameter with one 75-watt nitrogen-filled lamp. The fixtures are so spaced as togive a minimum illumination ol l foot-candles on thedesk space tops. The dense howls were chosen to eliminate glare andalso reflections of the image of the lighted bowl from desktops, papers or any other reflecting surfaces. Blackboards are mounted with the tops tilted backwhich very materially reduces direc
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookidelectricalnewsen28donm
