A Hand-book of Wiring Tables for Arc, Incandescent Lighting, and Motor CircuitsBubier Publishing Company, 1892 - 76 стор. |
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Результати 1-5 із 19
Сторінка 15
... feet , hence the resistance of 1000 feet would be 42240 - .6155 ohms . = Looking at the table on pages 40 and 41 in the column of resistances per 1000 feet , .62849 is the nearest to this number . The size of 15.
... feet , hence the resistance of 1000 feet would be 42240 - .6155 ohms . = Looking at the table on pages 40 and 41 in the column of resistances per 1000 feet , .62849 is the nearest to this number . The size of 15.
Сторінка 17
... 100 lamps drawing their current from a center of distri- bution of a capacity of 1000 lamps one - half mile from the station . The distance of the house in question , from this center is 120 feet 17 Three-Wire System,
... 100 lamps drawing their current from a center of distri- bution of a capacity of 1000 lamps one - half mile from the station . The distance of the house in question , from this center is 120 feet 17 Three-Wire System,
Сторінка 18
... feet , per cent loss will 991 available 110 991110.8+ , 110.8-110 - .8 volts lost . R = = ;; = 0.111 ohms for 30 feet- , twice the fifteen feet to allow for the return . Hence for 1000 feet ( in order to be found in the table of ...
... feet , per cent loss will 991 available 110 991110.8+ , 110.8-110 - .8 volts lost . R = = ;; = 0.111 ohms for 30 feet- , twice the fifteen feet to allow for the return . Hence for 1000 feet ( in order to be found in the table of ...
Сторінка 19
... feet it would be .6266 and the size corresponding is No. 8 ( 128 inches ) . The size of the 150 foot lengths from ... feet . 111.74 , ( from the pre- vious paragraph ) ÷ .99 = 112.88 . 112.88–111.74 = 1.14 volts lost . R === . 019 for ...
... feet it would be .6266 and the size corresponding is No. 8 ( 128 inches ) . The size of the 150 foot lengths from ... feet . 111.74 , ( from the pre- vious paragraph ) ÷ .99 = 112.88 . 112.88–111.74 = 1.14 volts lost . R === . 019 for ...
Сторінка 20
... feet ; for 1000 feet it would be .0031 which is outside the reach of the table but could be found to be a wire or rod 1 inches diameter . In practice , this size would be secured by running several smaller wires in multiple . It is ...
... feet ; for 1000 feet it would be .0031 which is outside the reach of the table but could be found to be a wire or rod 1 inches diameter . In practice , this size would be secured by running several smaller wires in multiple . It is ...
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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.