Chicago : Engineering and Contracting Pub. Co. · leaf 105
tc.,it is a high insulating material. (8) It hasthe advantage of long \\U , in fact its life isindefinite, Disadvantages.—(1) If not properly vitri In d. i;la/« d etc , or if it contains i*rin to any extent, the insulation is lowered. If not prop- i rlv tl.i/cd it will absorb moisture and as the… … Fig. \A—Derrick Loading Centers Onto Barges. sion to cables, either at the joints or by sharpprojection* inside, gives day conduit no advantage over iron pipe. (Ini Although somemanufacturers furnish bends they are notgencralh used in subwa\ const ruction, it !»■ cartage and handling charges. cJ)…
Buildings
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