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 7
Сторінка 17
... employed , whether direct current , the ordinary two - wire system , the three - wire system , or the alternating sys- tem with transformers . Secondarily it will depend on the particular make and candle- power of the lamps ...
... employed , whether direct current , the ordinary two - wire system , the three - wire system , or the alternating sys- tem with transformers . Secondarily it will depend on the particular make and candle- power of the lamps ...
Сторінка 21
... employ , the proper pressure for the lamps being attained by transformers or converters . Lamps of comparatively low voltage can be successfully used . Two calculations , alike in nature to the previous cases for incandescent lamps are ...
... employ , the proper pressure for the lamps being attained by transformers or converters . Lamps of comparatively low voltage can be successfully used . Two calculations , alike in nature to the previous cases for incandescent lamps are ...
Сторінка 26
... employ such a small size , as the tensile strength would be insufficient to resist the mechanical strains that pole lines are subject to . ) 2. Required size of line wire for 1300 52- volt , 16 c . p . lamps , 3 miles ( 15840 feet ) ...
... employ such a small size , as the tensile strength would be insufficient to resist the mechanical strains that pole lines are subject to . ) 2. Required size of line wire for 1300 52- volt , 16 c . p . lamps , 3 miles ( 15840 feet ) ...
Сторінка 60
... employed on their circuits . 71. The wiring in any building must test free from " grounds " before the current is turned on . This test may be made with a magneto that will ring through a resist- ance of 10,000 ohms , where currents of ...
... employed on their circuits . 71. The wiring in any building must test free from " grounds " before the current is turned on . This test may be made with a magneto that will ring through a resist- ance of 10,000 ohms , where currents of ...
Сторінка 68
... , and that in no case shall ground circuits be employed or any part of the system be allowed to come in contact with the earth through gas or water pipes or the like . AUTOMATIC SHUNT . 40. Wherever a current of such high 68.
... , and that in no case shall ground circuits be employed or any part of the system be allowed to come in contact with the earth through gas or water pipes or the like . AUTOMATIC SHUNT . 40. Wherever a current of such high 68.
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.