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 9
Сторінка 47
... rubber hooks . The rubber hooks must be of an ap- proved pattern , i . e . , with the rubber insulation free from flaws , and projecting over the hook in cup form . 8. Service blocks must be protected by at least two coats of water ...
... rubber hooks . The rubber hooks must be of an ap- proved pattern , i . e . , with the rubber insulation free from flaws , and projecting over the hook in cup form . 8. Service blocks must be protected by at least two coats of water ...
Сторінка 48
... 18. In places liable to dampness , wires must be sepa- rated at least one and one - half inches , they must be thoroughly and carefully put up , and supported upon por- celain or glass insulators , or hard rubber hooks . 48.
... 18. In places liable to dampness , wires must be sepa- rated at least one and one - half inches , they must be thoroughly and carefully put up , and supported upon por- celain or glass insulators , or hard rubber hooks . 48.
Сторінка 49
... rubber , should be used . Wires must never be left exposed to disturbance or 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 ...
... rubber , should be used . Wires must never be left exposed to disturbance or 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 ...
Сторінка 52
... Rubber hooks must be of an approved pat- tern ; i . e . , with the rubber insulation free from flaws , and projecting over the hook in cup form . 9. Service blocks must be protected by at least two coats of water - proof paint over ...
... Rubber hooks must be of an approved pat- tern ; i . e . , with the rubber insulation free from flaws , and projecting over the hook in cup form . 9. Service blocks must be protected by at least two coats of water - proof paint over ...
Сторінка 54
... be supported by glass or porcelain insulators , or by rubber hooks . 25. In crossing any metal pipes , or any other conduc- tor , wires must be separated from the same by an air space of at least one - half inch , where 54.
... be supported by glass or porcelain insulators , or by rubber hooks . 25. In crossing any metal pipes , or any other conduc- tor , wires must be separated from the same by an air space of at least one - half inch , where 54.
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.