A Hand-book of Wiring Tables for Arc, Incandescent Lighting, and Motor CircuitsBubier Publishing Company, 1892 - 76 стор. |
З цієї книги
Результати 1-5 із 16
Сторінка 16
... a gas or water plant , with a center of distribution , from which the main supply wires emerge in all directions . Ex- tras or feeder wires are usually necessary . Supply wires tapped to the mains enter every house or 16.
... a gas or water plant , with a center of distribution , from which the main supply wires emerge in all directions . Ex- tras or feeder wires are usually necessary . Supply wires tapped to the mains enter every house or 16.
Сторінка 17
Arthur Eugene Watson. Supply wires tapped to the mains enter every house or block to be lighted . Finally these individual wires supply each lamp or group of lamps . The wires are always in duplicate , one to bring the current to the ...
Arthur Eugene Watson. Supply wires tapped to the mains enter every house or block to be lighted . Finally these individual wires supply each lamp or group of lamps . The wires are always in duplicate , one to bring the current to the ...
Сторінка 19
... enter the calcu- lation , 100 × 6 = 60 amperes to be carried in all ( 2 × 150 ) 300 feet . 111.74 , ( from the pre- vious paragraph ) ÷ .99 = 112.88 . 112.88–111.74 = 1.14 volts lost . R === . 019 for 300 feet . For 1000 feet it would ...
... enter the calcu- lation , 100 × 6 = 60 amperes to be carried in all ( 2 × 150 ) 300 feet . 111.74 , ( from the pre- vious paragraph ) ÷ .99 = 112.88 . 112.88–111.74 = 1.14 volts lost . R === . 019 for 300 feet . For 1000 feet it would ...
Сторінка 47
... enter a building , must not be less than twelve inches apart . They must be rigidly and neatly run , and supported by glass or porcelain insulators , or rubber hooks . The rubber hooks must be of an ap- proved pattern , i . e . , with ...
... enter a building , must not be less than twelve inches apart . They must be rigidly and neatly run , and supported by glass or porcelain insulators , or rubber hooks . The rubber hooks must be of an ap- proved pattern , i . e . , with ...
Сторінка 48
... enter and leave the building through an approved cut - out switch . 14. The cut - out switch must be " double contact , " and should effectually close the main circuit , and cut off the interior , when turned " off . " It must be so ...
... enter and leave the building through an approved cut - out switch . 14. The cut - out switch must be " double contact , " and should effectually close the main circuit , and cut off the interior , when turned " off . " It must be so ...
Інші видання - Показати все
A Hand-Book of Wiring Tables for Arc, Incandescent Lighting, and Motor Circuits Arthur Eugene Watson Попередній перегляд недоступний - 2018 |
A Hand-Book of Wiring Tables for ARC, Incandescent Lighting, and Motor Circuits Arthur Eugene Watson Попередній перегляд недоступний - 2015 |
Загальні терміни та фрази
104-volt lamps 16 c. p. lamps 52-volt lamps alternating current amperes Amperex approved insulation arc circuits arc lamps arc system ARC-LIGHT Area in CM=d2 attached to build automatic Board cent loss center of distribution circular mills Cleats Cloth Bound conducting wires conductors covered Diameter in Mils direct current Distance in feet dynamo EDISON SYSTEM edition Edward Trevert electric light wires Electricians electro-motive force England Insurance Exchange enter the building entering buildings erected extra heavy Farad feet from transformer fixtures Formula Hand-book house mains incandescent lamps Incandescent System inflammable material INSIDE WIRING joints line wire located magneto material mechanical injury moisture Nostrand's Science Series number of lamps ohms overhead wires pipe poles porcelain Practical Primary Mains Pure Copper Wire regulations rheostat rubber hooks rules secondary mains secured Series motors size of wire soldered spark arrester supply wires Telegra tion tube two-wire system voltage water-proof insulation Watts WIRING TABLE
Популярні уривки
Сторінка 58 - Flexible cord must not be used except for pendants, wiring of fixtures, portable lamps or motors, portable heating apparatus or other portable devices.
Сторінка 51 - ... c. Must be 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.