Standard Wiring for Electric Light and Power as Adopted by the Fire Underwriters of Th United States in Accordance with the National Electrical Code: With Explanations, Illustrations and Tables Necessary for Outside and Inside Wiring and Construction for All Systems, Together with a Section on House Wiring

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H.C. Cushing, jr., 1917 - Electric wiring - 360 pages
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Page 257 - With arms held straight, swing forward slowly, so that the weight of your body is gradually brought to bear upon the patient. The shoulder should be directly over the heel of the hand at the end of the forward swing. Do not bend your elbows. This operation should take about two seconds.
Page 181 - ... c. Must be at least seven feet above the highest point of flat roofs and at least one foot above the ridge of pitched roofs over which they pass or to which they are attached.
Page 12 - Ground wires for lightning arresters should not bo attached to gas pipes within the buildings. It is often desirable to introduce a choke coil in circuit between the arresters and the dynamo. In no case should the ground wire from a lightning arrester be put into iron pipes, as these would tend to impede the discharge.
Page 119 - On side walls the wiring should be protected from mechanical injury by a substantial boxing, retaining an air space of one inch around the conductors, closed at the top (the wires passing through bushed holes), and extending not less than seven feet from the floor.
Page 256 - IMMEDIATELY BREAK THE CIRCUIT With a single quick motion, free the victim from the current. Use any dry non-conductor (clothing) rope, board, to move either the victim or the wire. Beware of using metal or any moist material. While freeing the victim from the live conductor have every effort also made to shut off the current quickly.
Page 120 - Rigid supporting requires under ordinary conditions, where wiring along flat surfaces, supports at least every four and one-half feet. If the wires are liable to be disturbed, the distance between supports should be shortened. In buildings of mill construction, mains of No.
Page 185 - Must be placed in an enclosure constructed of fireresisting material, the enclosure to be used only for this purpose, and to be kept securely locked, and access to the same allowed only to responsible persons. c. Must be effectively insulated from the ground, and the enclosure in which they are placed must be practically airtight, except that it must be thoroughly ventilated to the outdoor air, if possible, through a chimney or flue.
Page 57 - The ground wire in direct-current three-wire systems must not at Central Stations be .smaller than the neutral wire and not smaller than No. 6 B. & S. gage elsewhere. The ground wire in alternating-current systems must never be less than No.
Page 64 - Such lines should not approach other pole lines nearer than a distance equal to the height of the taller pole line, and such lines should not be on the same poles with other wires, except that signaling wires used by the company operating the high-pressure system, and which do not enter property other than that owned or occupied by such company, may be carried over the same poles.
Page 257 - As soon as this artificial respiration has been started, and while it is being continued, an assistant should loosen any tight clothing about the subject's neck, chest, or waist.

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