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 47
... attached to build- ings , must be at least seven feet above the highest point of flat roofs , and one foot above the ridge of pitch roofs . Lines constructed subsequent to the adoption of these regulations should not be run over and ...
... attached to build- ings , must be at least seven feet above the highest point of flat roofs , and one foot above the ridge of pitch roofs . Lines constructed subsequent to the adoption of these regulations should not be run over and ...
Сторінка 51
... attached to build- ings , must be at least seven feet above the highest point of flat roofs , and one foot above the ridge of pitch roofs . Lines constructed subsequent to the adoption of these regulations should not be run over and ...
... attached to build- ings , must be at least seven feet above the highest point of flat roofs , and one foot above the ridge of pitch roofs . Lines constructed subsequent to the adoption of these regulations should not be run over and ...
Сторінка 57
... attached to gas - pipes . 47. On any combination fixture , no group of lamps requiring a current of seven amperes or over shall be ultimately dependent on one cut - out . FIXTURE WORK . 48. In all cases where wires are concealed within ...
... attached to gas - pipes . 47. On any combination fixture , no group of lamps requiring a current of seven amperes or over shall be ultimately dependent on one cut - out . FIXTURE WORK . 48. In all cases where wires are concealed within ...
Сторінка 64
... attached and supported by insulators which shall keep them out of contact with any wall , partition , ceiling or floor , so as to secure an air space of at least one - quarter inch between the wire and any adjacent wall , partition or ...
... attached and supported by insulators which shall keep them out of contact with any wall , partition , ceiling or floor , so as to secure an air space of at least one - quarter inch between the wire and any adjacent wall , partition or ...
Сторінка 65
... attached and supported as to be secure from abrasion or other 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 ...
... attached and supported as to be secure from abrasion or other 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 ...
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.