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 13
... divided by the resistance of the wire . Ohms ' formula is the foundation of all calculations of this nature . If C repre- sents the current in " amperes , " E the elec- tro - motive force in " volts " and R 13 GENERAL INFORMATION II.
... divided by the resistance of the wire . Ohms ' formula is the foundation of all calculations of this nature . If C repre- sents the current in " amperes , " E the elec- tro - motive force in " volts " and R 13 GENERAL INFORMATION II.
Сторінка 15
... amperes and 1200 candle - power . Let it be required to determine the size of wire 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 ...
... amperes and 1200 candle - power . Let it be required to determine the size of wire 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 ...
Сторінка 18
... amperes , and the distance 15 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 ...
... amperes , and the distance 15 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 ...
Сторінка 19
... amperes . 110.8 ( from above ) ÷ 994111.74 volts . 111.74-110.8 - .94 volts . R === . 06266 ohms . For 1000 feet it would be .6266 and the size corresponding is No. 8 ( 128 inches ) . The size of the 150 foot lengths from the house to ...
... amperes . 110.8 ( from above ) ÷ 994111.74 volts . 111.74-110.8 - .94 volts . R === . 06266 ohms . For 1000 feet it would be .6266 and the size corresponding is No. 8 ( 128 inches ) . The size of the 150 foot lengths from the house to ...
Сторінка 20
Arthur Eugene Watson. stated . 1000 × .6 = 600 amperes . R == & sz = .01636 ohms resistance for 5280 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 ...
Arthur Eugene Watson. stated . 1000 × .6 = 600 amperes . R == & sz = .01636 ohms resistance for 5280 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 ...
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.