Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 276
etile partitions between the rooms, havebeen set. In a fireproof building it willgenerally be necessary to run the mainrisers before the floors are made and toarrange for the distributing cabinets oneach floor. Fig. 124 shows a cabinetin place in the unfinished partitionwith two conduit risers… … 246 UNDERWRITERS REQUIREMENTS 123 In concrete buildings it is often somewhat difRcult to placethe conduits and the boxes so as to clear the reinforcing materialand at the same time keep the metal parts well covered at all points.Special methods have to be adopted varying with the type of con-crete…
Electrical engineering
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