Encyclopædia Britannica, Ninth Edition/Electric Traction > 자유게시판

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He requested the defendant to put it up, take it down after the election and attend to it for him, saying that he didn't wish to have something to do with it. A small tunnel or conduit runs below the surface between the tracks, and in this is a slit for an arm which extends down from the automobile. The first electric railway was a small line built by Thomas Davenport, at Springfield, Mass., in 1835. In 1851 Prof. C. G. Page ran a 16 H. P. electric locomotive at the rate of 19 miles per hour close to Washington. Power cable: refers to a line with a large wire diameter, generally three or 4 cores, with thicker insulation between phases and transmitting electric vitality. Another methodology of effecting electric traction is to carry a retailer of vitality on the automobile or on a special locomotive, by utilizing secondary batteries that are charged every so often on the generating station. One can go from Portland, Me., by Boston to New York metropolis through the use of the trolley-strains connecting the intervening towns. The traces at Lichterfelde and Brighton, already talked about, are examples of this plan, which is sort of inapplicable the place the rails are laid flush with the roadway as in city streets.

The London Metropolitan Underground road is operated by electricity, and the new underground road in New York metropolis uses the identical methodology. A single dynamo for a brand new York plant has an output of 3,500 K. W. or about 4,600 H. P. The Electric Railway Review estimates that the electric cars carry practically 20,000,000 passengers per day within the United States. Slocum v. New York Life Insurance Co., 228 U.S. Du Bois Electric Co. v. Fidelity Title & Trust Co., 238 Fed. See Gray v. Boston Gas Light Co., 114 Mass. St. Rep. 507; Clifford v. Atlantic Cotton Mills, 146 Mass. The number of electric cars within the United States is to-day 89,601. The capital invested in this trade of solely two many years is over two billions of dollars, and the online revenue for 1911 was $195,324,698. These options are one or two motors supported underneath the automobiles and geared to the axle; a change and controller on the platform by which the velocity and course of the motor will be managed; a single, overhead wire, suspended over the track by insulating supports, for bringing the current; a trolley-wheel carried on a pivoted pole from the car-prime to connect the trolley-wire with the motor; a return-circuit by the rail and ground to the ability-station.

The two are contrasted in this blog publish and probably the most typical power and control cable kinds. 525. And when as right here the hazard had been known as fully into existence by the defendant it couldn't escape liability for the results of circumstances that it alone knew, had created and had organized to have proceed, by stepping out of the control a few days earlier than the event came to go. An act of this form that reasonable care would have shown to endanger life, might have made the actor guilty of manslaughter, if not, in an excessive case, of homicide. Sub switchboards act as secondary management centers that receive energy from the principle switchboard and distribute it to particular areas or circuits inside their designated zones. In accordance with the usual, the control cable is sixty one cores, electric control cable but it surely may also be personalized in line with consumer requirements. For any cable inquiry, you can contact ZMS Cable. The trolley-wire is carried on insulated helps on this conduit, and call is made with it by brushes on the arm from the automobile above.

When a train leaves a section it replaces the switch that makes contact with the part behind. The principle switchboard sometimes comprises a foremost change or circuit breaker that enables you to show off power to the entire home in case of emergencies or upkeep. Inside the main switchboard, you'll discover a collection of circuit breakers or fuses that protect each particular person circuit from overloading. 129, 132, 151 C. C. A. 205, L. R. A. 1917C, 907. At the brand new trial the plaintiff once more got a verdict and judgment, however the Circuit Court of Appeals set them aside, this time simply reversing the judgment with out ordering a brand new trial. At a former trial the plaintiff had a verdict but it surely was put aside and a new trial ordered by the Cr cuit Court of Appeals. Power cables are cable merchandise used to transmit and distribute high-energy electric power in trunk lines of power programs, including varied insulated energy cables with varied voltage levels of 1-500KV and above. PVC insulated cable, polyethylene insulated cable, XLPE insulated cable, and other kinds of medium- and low-voltage wire (often 35KV and under).