Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 248
onduit. Armore4 Cable. Thereare many cases where it is im-possible to install a conduitsystem. In such cases, prob-bably the next best results maybe obtained by the use of steelarviored cable. The rules gov-erning tlie instidlation of armored cable are given in the NationalElectric Code, under… … Fig. 4. A100-Foot Coil of Flexible Steel Conduit.Courtesy of Sprugue Electric Co., New York, N. Y. 206 ELECTRIC WIRING for the steel conduit. Care is taken in forming the cable, to avoidcrushing or abraiding the insulation on the conductors as the steel
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