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 15
... lamps are commonly rated as " full arcs " or " half arcs , " estimated roughly by the amount of current they use or by the light they furnish . The former use 9.6 am- peres and furnish 2000 candle - power lamps , the later 6.8 amperes ...
... lamps are commonly rated as " full arcs " or " half arcs , " estimated roughly by the amount of current they use or by the light they furnish . The former use 9.6 am- peres and furnish 2000 candle - power lamps , the later 6.8 amperes ...
Сторінка 47
... light or power is being , or is to be used , but should be on separate poles , or structures , where they can be easily reached for inspec- tion . 6. When they are in proximity to other conducting wires , or any substance likely to ...
... light or power is being , or is to be used , but should be on separate poles , or structures , where they can be easily reached for inspec- tion . 6. When they are in proximity to other conducting wires , or any substance likely to ...
Сторінка 50
... power , the same precautions should be taken as with a current of the same volume and potential for lighting . 29. The wires leading to motors should be separated at least twelve inches from each other , and must be pro- vided with an ...
... power , the same precautions should be taken as with a current of the same volume and potential for lighting . 29. The wires leading to motors should be separated at least twelve inches from each other , and must be pro- vided with an ...
Сторінка 51
Arthur Eugene Watson. reasonable efforts to promptly notify all electric light companies of any change . 32. The signing of these rules by an electric light ... power , not easily abraded , and they must be firmly secured to properly insu- ...
Arthur Eugene Watson. reasonable efforts to promptly notify all electric light companies of any change . 32. The signing of these rules by an electric light ... power , not easily abraded , and they must be firmly secured to properly insu- ...
Сторінка 61
... light or power , may be granted as soon as the certificate is duly filed . Concealed work should be inspected before being cov- ered up , and as a rule , incandescent work generally should be inspected before current is turned on . The ...
... light or power , may be granted as soon as the certificate is duly filed . Concealed work should be inspected before being cov- ered up , and as a rule , incandescent work generally should be inspected before current is turned on . The ...
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.