Journal, 11. cilt

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Institution of Electrical Engineers., 1882
Vols. for 1970-79 include an annual special issue called IEE reviews.

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Sayfa 361 - ... material, such as india-rubber tape or tube, for at least two feet on each side of the support. 12. Bare wires passing over the tops of houses should never be less than seven feet clear of any part of the roof, and they should invariably be high enough, when crossing thoroughfares, to allow fire escapes to pass under them.
Sayfa 361 - When these wires pass through roofs, floors, walls, or partitions, or where they cross or are liable to touch metallic masses, like iron girders or pipes, they should be thoroughly protected by suitable additional covering ; and where they are liable to abrasion from any cause, or to the depredations of rats or mice, they should be efficiently encased in some hard material.
Sayfa 37 - The uniform action of this peculiar-shaped iron core is due to the equal and opposite magnetic effect which appears as the result from the decrease of the mass of iron in one solenoid being compensated for by the increase of its magnetic action, and vice versa, and it is this most interesting feature which constitutes the principal novelty in the " Pilsen " Lamp. Fig. 10 of the diagrams shows a simple application of the biconical iron core and double coils. The top coil, M, is in the main circuit,...
Sayfa 361 - Danger to Person. 17. Where bare wire out of doors rests on insulating supports, it should be coated with insulating material, such as indiarubber tape or tube, for at least two feet on each side of the support. 18. To secure persons from danger inside...
Sayfa 581 - Council are glad to be able to report that the finances of the Society are in a satisfactory condition.
Sayfa 361 - These fuses are of the very essence of safety. They should always be enclosed in incombustible cases. Even if wires become perceptibly warmed by the ordinary current, it is a proof that they are too small for the work they have to do, and that they ought to be replaced by larger wires. 10. Under ordinary circumstances complete metallic circuits should be used, and the employment of gas or water pipes should in no case be allowed.
Sayfa 231 - Daniel! cell, and then discharged through a high resistance galvanometer, the deflection of the needle being noted. This condenser was then connected to the two wires of the lamp, and again discharged through the galvanometer, the deflection being made the same as before by means of a variable shunt connected with the galvanometer. Since with a given condenser the charges it receives are proportional to the potentials of the charging...
Sayfa 24 - ... pressure of 30 inches of mercury, and at a temperature of 60° Fah.
Sayfa 614 - ... abutting upon each other ; but there is now little doubt that it is due to effects of heat generated by the passage of electricity between two points in imperfect contact, whose relative distance is variable. Carbon is the best material for the purpose — first, because it is...
Sayfa 238 - T079 volts, strict accuracy would require the figiires given to be increased in that ratio. Moreover, the small error arising from the inductive action of the needle on the galvanometer-coils has been regarded as unimportant. 4. Current. — By the law of Ohm the current strength is the quotient of electro-motive force by resistance. Dividing the electromotive force in volts by the resistance in ohms the current strength is obtained in amperes. 5. Electrical Energy. — The work done by a current...

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