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 12
Сторінка 15
... necessary to use on a circuit of 50 full arc lamps , with a loss of but 10 per cent , allowing 45 volts for each lamp . Fifty lamps would require 2250 volts . But only 90 per cent is to be available for lighting purposes , so 2350 volts ...
... necessary to use on a circuit of 50 full arc lamps , with a loss of but 10 per cent , allowing 45 volts for each lamp . Fifty lamps would require 2250 volts . But only 90 per cent is to be available for lighting purposes , so 2350 volts ...
Сторінка 16
... 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.
... 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 21
... necessary for this system , one for the primary mains , one for the house mains . The tables for the direct current , two - wire system , can- not be made to apply to the secondary , or house mains , with the alternating current as the ...
... necessary for this system , one for the primary mains , one for the house mains . The tables for the direct current , two - wire system , can- not be made to apply to the secondary , or house mains , with the alternating current as the ...
Сторінка 22
... necessary . In figur- ing the resistance of the line , it is well to assume each horse - power of the motor equiva- lent to an arc lamp . Series motors for elevators and some other intermittent machinery are usually supplied from ...
... necessary . In figur- ing the resistance of the line , it is well to assume each horse - power of the motor equiva- lent to an arc lamp . Series motors for elevators and some other intermittent machinery are usually supplied from ...
Сторінка 24
... are to be multi- plied by the number of lamps , and by the dis- tance ( in feet ) to get the circular mills of the wire necessary to use . Per cent loss . CONSTANTS FOR 1234560022K .0025 10 4.0 24 Secondary Circuits,
... are to be multi- plied by the number of lamps , and by the dis- tance ( in feet ) to get the circular mills of the wire necessary to use . Per cent loss . CONSTANTS FOR 1234560022K .0025 10 4.0 24 Secondary Circuits,
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.