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 6
Сторінка 26
... 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 ) from station , with 12 per cent loss . 1300 X 15840 X .008 164736 cir . mills ooo wire ...
... 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 ) from station , with 12 per cent loss . 1300 X 15840 X .008 164736 cir . mills ooo wire ...
Сторінка 49
... mechanical injury . ARC LAMPS . 20. The frames and other exposed parts of arc lamps must be carefully insulated from the circuit . 21. Each lamp must be provided with a proper hand switch , and also with an automatic switch that will ...
... mechanical injury . ARC LAMPS . 20. The frames and other exposed parts of arc lamps must be carefully insulated from the circuit . 21. Each lamp must be provided with a proper hand switch , and also with an automatic switch that will ...
Сторінка 55
... mechanical injury , or to disturbance of any kind . 28. Metallic staples must never be used ; when staples are used , they must be of an approved insulating mate- rial . 29. None but an approved tubing will be accepted as a durable ...
... mechanical injury , or to disturbance of any kind . 28. Metallic staples must never be used ; when staples are used , they must be of an approved insulating mate- rial . 29. None but an approved tubing will be accepted as a durable ...
Сторінка 65
... mechanical injury . NOTE . - Rubber tubing will not meet the above require- ments as an insulation . ARC LAMPS . 17. The exterior frames and other exposed parts of arc lamps must be securely insulated from the electric circuit , and all ...
... mechanical injury . NOTE . - Rubber tubing will not meet the above require- ments as an insulation . ARC LAMPS . 17. The exterior frames and other exposed parts of arc lamps must be securely insulated from the electric circuit , and all ...
Сторінка 66
... mechanical injury and must be so located that a cut - out can be safely and conveniently located close to the end of the service pipe or conduit by which they are brought in . LOW POTENTIAL WIRES WITHIN BUILDINGS . 24 . In the ...
... mechanical injury and must be so located that a cut - out can be safely and conveniently located close to the end of the service pipe or conduit by which they are brought in . LOW POTENTIAL WIRES WITHIN BUILDINGS . 24 . In the ...
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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.