Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines, the Locomotive, Electricity, Machine Shop Practice, Air Brake Practice, Engineer's Catechism, Gas, Oil, Traction and Automobile Motors, Refrigeration, Etc., Etc, Том 3International School of Engineering, 1906 |
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Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines ..., Том 6 International School of Engineering Попередній перегляд недоступний - 2014 |
Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines ..., Том 6 International School of Engineering Попередній перегляд недоступний - 2018 |
Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines ..., Том 6 International School of Engineering Попередній перегляд недоступний - 2018 |
Загальні терміни та фрази
adjusted alternating current ammeter amount amperes arc lamp armature arranged bars battery binding posts brushes building burn candlepower carbon carry cause circuit breaker circular mils coil commutator conductors conduit connected in series constant potential construction controller copper core current dynamos current flowing current passing cut-out diagram difference of potential direct current distance dynamo electric electromotive force fastened field magnets FIGURE fixture floor frame fuse gas pipe heat incandescent lamp inch increases Inspection Department installed insulation iron joints light load lower machine metal meter method motor multiple necessary nected negative neutral wire ohms operate placed plates plug pole position pressure rent resistance rheostat ring rule screws shaft short circuit shown in Fig shows shunt field side socket soldered solenoid spark speed starting box switch switchboard terminals three-wire tion tube voltage voltmeter volts WATT METER watts winding wound
Популярні уривки
Сторінка 257 - Bushings must be long enough to bush the entire length of the hole in one continuous piece, or else the hole must first be bushed by a continuous waterproof tube. This tube may be a conductor, such as iron pipe, but in that case an insulating bushing...
Сторінка 199 - Must never be placed in a room where any hazardous process is carried on, nor in places where they would be exposed to inflammable gases, or flyings of combustible material.
Сторінка 341 - TO 3,500 VOLTS. Any circuit attached to any machine or combination of machines which develops a difference of potential, between any two wires, of over...
Сторінка 236 - Must be protected by dead insulated guard irons or wires from possibility of contact with other conducting wires or substances to which current may leak. Special precautions of this kind must be taken where sharp angles occur, or where any wires might possibly come in contact with...
Сторінка 275 - Arc lamps, when used in places where they are exposed to flyings of easily inflammable material, should have the carbons enclosed completely in a tight globe in such manner as to avoid the necessity for spark arresters. "Enclosed arc...
Сторінка 278 - ... the walls, and arranged to cut off the entire current from the building.
Сторінка 233 - When current for light and power is taken from primary or secondary batteries, the same general regulations must be observed as apply to similar apparatus fed from dynamo generators developing the same difference of potential. b.
Сторінка 338 - Must bave a cut out (see para. 17 a) for each lamp or each series of lamps. The branch conductors should have a carrying capacity about 50 per cent, in excess of the normal current required by the lamp to provide for heavy current required when lamp is started or when carbons become stuck without over-fusing the wires.
Сторінка 253 - 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 265 - 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. d. No underground service from a subway to a building...