Specifications covering overhead, underbridge and underground crossings; clearances, loading, wires and cables, insulators, insulator pins and conductor attachments, crossarms, strength of supporting structures, wood poles, steel structures, guys, etc.; specifications for galvanizing or sherardizing on iron and steel.
Railroad specifications for electric light power supply and trolley lines crossing railways
Am. Ry. Eng. Assn. -- Bul
American Railway Engineering Association -- Bulletin ; 25 , n 258
1923
73 pages
36 Figs.
Article (Journal)
English
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