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 267
ons for most of thedetails prescribed in underwriters rules for conduit work. The construction details ofsteel conduit will be brieflydiscussed later and we considerhere only methods of installing it. There must be no breaks inthe conduit system, that is, thepipe must be continuous fromoutlet to… … Fig. 115. Flexible Conduit ?Si\ 114 UNDERWRITERS REQUIREMENTS threaded lock nuts on the pipe outside the box and tiireaded bushingson the pipe inside the box or by threading the conduit into tappedholes in the box. With flexible conduit a special approved clamp mustbe used for this purpose. Fig.…
Electrical engineering
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