Handbook of mechanical and electrical cost data, giving shipping weights, capacities, outputs, and net prices of machines and apparatus, and detailed costs of installation, maintenance, depreciation and operation, together with many principles and data relating to engineering economics (1918)
Gillette, Halbert Powers, 1869-, Dana, Richard Turner, 1876-1928, joint author · New York, McGraw-Hill · leaf 1021
Fig. 17. Vault size 9, to be used on conduit runs—?Fig. 18. Vault size 10, used for installing 6 loading pots on con-duit runs when not intersected. UNDERGROUND ELECTRICAL TRANSMISSION 990 shall be at once applied, and the operation continued until the wallshave reached the required height When the…
