Electric Lighting Specifications for the Use of Engineers and ArchitectsW.J. Johnston Company, 1892 - 176 стор. |
З цієї книги
Результати 1-5 із 11
Сторінка 78
... up- in molding , etc. , ward in ( channels , wooden conduits , elevator shaft , air shaft , etc. , with location ) to their respective cut - out boxes . From the riser feeder S } 90. Mains ( If 78 ELECTRIC LIGHTING SPECIFICATIONS ...
... up- in molding , etc. , ward in ( channels , wooden conduits , elevator shaft , air shaft , etc. , with location ) to their respective cut - out boxes . From the riser feeder S } 90. Mains ( If 78 ELECTRIC LIGHTING SPECIFICATIONS ...
Сторінка 79
Earle Abbott Merrill. From the riser feeder S } 90. Mains ( If cut - out boxes mains taps termi- under cleats , shall be carried on insulators , ( in molding , etc. , to second- ary cut - out boxes where all tap lines shall S riser centre .
Earle Abbott Merrill. From the riser feeder S } 90. Mains ( If cut - out boxes mains taps termi- under cleats , shall be carried on insulators , ( in molding , etc. , to second- ary cut - out boxes where all tap lines shall S riser centre .
Сторінка 82
... cut - out and circuit , which shall be run from the distribution box at ( location ) . The wiring shall include the ... from abrasion . The molding used in the places specified above shall be of - , and finished On all outside walls ...
... cut - out and circuit , which shall be run from the distribution box at ( location ) . The wiring shall include the ... from abrasion . The molding used in the places specified above shall be of - , and finished On all outside walls ...
Сторінка 85
... cut - out box . All distribu- tion circuits shall consist of two wires only except to outlets for a group of -c . p . , lamps or more , and for special circuits speci- fically ELECTRIC LIGHTING SPECIFICATIONS . 85 Three-wire System ...
... cut - out box . All distribu- tion circuits shall consist of two wires only except to outlets for a group of -c . p . , lamps or more , and for special circuits speci- fically ELECTRIC LIGHTING SPECIFICATIONS . 85 Three-wire System ...
Сторінка 90
Earle Abbott Merrill. 126. Taps . 127. Junction Boxes . 128. Cut - Outs . No. 1 shall be carried ( riser ) feeder S terminating at -- ; from ( riser ) feeder ( mains No. 2 , etc. ( Note . In certain cases it is advisable to run the ...
Earle Abbott Merrill. 126. Taps . 127. Junction Boxes . 128. Cut - Outs . No. 1 shall be carried ( riser ) feeder S terminating at -- ; from ( riser ) feeder ( mains No. 2 , etc. ( Note . In certain cases it is advisable to run the ...
Інші видання - Показати все
Загальні терміни та фрази
Alternating Current ampère meter ance apparatus appliances approved arc lamps armature attached automatic baseframe bidder shall fill bids building c. p. lamps candle power capacity carried ceiling centre of distribution cleats concealed conductors connections contractor shall furnish covered cuits cut-outs and switches Direct Current double-pole electric light erect the following fastened fixture floor foundation(s full load fuses fusible Galvanometers globes hand regulator incandescent lamps inches inclosed incombustible bases installation insulated wire insulation resistance joints junction boxes knife switch lightning arresters Low Potential main wires ments metal moisture moisture-proof molding necessary non-combustible number of circuits number of lights number or designation operating dynamos operation outlets placed porcelain pressure proper protected pulleys purchaser Rating of exciters ratus and material riser feeder securely set screws shunt Sockets soldered spark arresters specification steam switchboard three-wire tightened tion tube two-wire voltage voltmeter volts walls waterproof wire smaller
Популярні уривки
Сторінка 126 - 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 all pipes upon which condensed moisture is likely to gather, or which by leakage might cause trouble on a circuit.
Сторінка 127 - be covered with moisture-proof material. The object of a tube or conduit is to facilitate the insertion or extraction of the conductors, to protect them from mechanical injury, and as far as possible, from moisture. Twin tube conductors must not be separated from each other by rubber or similar material, but by cotton or other readily
Сторінка 119 - between them, not less than a foot apart and not in contact with any substance other than proper insulating supports. 4. 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. must be
Сторінка 132 - where the cord comes through the ceiling block or rosette, in order that the strain may be taken from the joints and binding screws. All sockets used for wire or cord pendants should have openings at least equal to one-quarter inch
Сторінка 116 - in Isolated Plants, Connected With or Detached from Buildings Used for Other Purposes. Also to all Varieties of Apparatus, of both High and Low Potential. GENERATORS OR MOTORS—Must be : 1. Located in a dry place. 2. Insulated on floors or base frames, which must be kept filled to prevent absorption of moisture, and also kept clean and dry.
Сторінка 130 - handle. 4. Have carrying capacity sufficient to prevent heating above the surrounding atmosphere. 5. Be placed in dry accessible places, and be grouped as far as possible, being mounted, when practicable, upon slate or equally indestructible back boards.
Сторінка 132 - concealed between the pipe and shell of the fixture the insulation must be such as is required for fixture wiring for the electric light. 3. The whole installation must test free from "grounds." 4. The two installations must test perfectly free of connection with each other.
Сторінка 127 - be: 2. Placed at every point where a change is made in the size of wires (unless the cut-out in the larger wire will protect the smaller.)
Сторінка 164 - at every point where a change is made in the size of the wire (unless the cut-out in the larger wire is intended to protect the smaller).
Сторінка 129 - clearly understood that the size of the fuse depends upon the size of the smallest conductor it protects, and not upon the amount of current to be used on the circuit. Below is a table showing the safe carrying capacity of conductors of different sizes in Birmingham, Brown &