International Library of Technology: A Series of Textbooks for Persons Engaged in the Engineering Professions and Trades, Or for Those who Desire Information Concerning Them, Том 14,Частина 2International Textbook Company, 1906 |
Інші видання - Показати все
International Library of Technology: A Series of Textbooks ..., Том 39,Частина 2 Повний перегляд - 1908 |
Загальні терміни та фрази
16-candlepower lamps acid active material adjusted allowed alternating current alternating-current ammeter amount ampere-hours amperes arc lamps arc-light armature arrangement battery bell booster burn candle candlepower cells cent charge circular mils conductors conduit connected in series constant constant-current constant-potential cut-out direct current direct-current discharge distance drop dynamo efficiency electric electrolyte enclosed arc enclosed-arc lamp feeders feet filament fixture foot-candle fuse give globe ground hence illumination incandescent lamp inch increase indicated installed insulation large number light load lower machine magnet mains means method motors necessary Nernst lamp neutral number of lamps open-arc lamp operated ordinary placed plug porcelain pressure primary reactance regulation resistance rheostat secondary series circuit series coils series lamps short-circuiting shown in Fig shows shunt coil side socket station sulphate supplied switch switchboard temperature terminals three-wire system tion transformer tube two-wire usually voltage voltmeter volts watt-hours wattmeter watts wire
Популярні уривки
Сторінка 21 - The American Institute of Electrical Engineers; The American Society of Mechanical Engineers; The American Society of Civil Engineers; The American Society of Mining and Metallurgical Engineers; and The American Society for Testing Materials.
Сторінка 27 - Stranded wires (except in flexible cords) must be soldered before being fastened under clamps or binding screws, and whether stranded or solid, when they have a conductivity greater than that of No. 8 B. & S.
Сторінка 28 - Must be so spliced or joined as to be both mechanically and electrically secure without solder. The joints must then be soldered, to insure preservation, and covered with an insulation equal to that on the conductors.
Сторінка 30 - ... b. Must be placed at every point where a change is made in the size of wire [unless the cut-out in the larger wire will protect the smaller.
Сторінка 45 - Circuitbreakers must not be set more than 30 per cent. above the allowable carrying capacity of the wire, unless a fusible cut-out is also installed in the circuit.
Сторінка 30 - Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause trouble on a circuit.
Сторінка 26 - ... between all conductors and the ground (not including attachments, sockets, receptacles, etc.) of not less than the following: Up to 5 amperes 4,000,000...
Сторінка 30 - Must be separated from contact with walls, floors, timbers or partitions through which they may pass by non-combustible, non-absorptive, insulating tubes, such as glass or porcelain, except at outlets where approved flexible tubing is required.
Сторінка 31 - Underground conductors must not be so arranged as to shunt the current through a building around any catch-box. c. Where underground service enters building through tubes, the tubes shall be tightly closed at outlets with asphaltum or other nonconductor, to prevent gases from entering the building through such channels.