A Hand-book of Wiring Tables for Arc, Incandescent Lighting, and Motor CircuitsBubier Publishing Company, 1892 - 76 стор. |
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Сторінка 72
... erected or maintained for supporting wires of the other class , namely those for signaling , except by permis- sion of the board . II . Poles shall be uniformly spaced , and about sixty to the mile . This requires on the short city ...
... erected or maintained for supporting wires of the other class , namely those for signaling , except by permis- sion of the board . II . Poles shall be uniformly spaced , and about sixty to the mile . This requires on the short city ...
Сторінка 74
... erect posts or poles , or other fixtures bearing lamps or other devices , for the purpose of lighting by electricity ... erecting said lamp - posts shall , on tender of the first cost thereof , yield possession and ownership of the same ...
... erect posts or poles , or other fixtures bearing lamps or other devices , for the purpose of lighting by electricity ... erecting said lamp - posts shall , on tender of the first cost thereof , yield possession and ownership of the same ...
Сторінка 75
... erection of any overhead structure nor for the renewing of any lines already existing in any street , avenue or highway in which under- ground accommodations for the service have been pro- vided , or are being provided . 35. Every line ...
... erection of any overhead structure nor for the renewing of any lines already existing in any street , avenue or highway in which under- ground accommodations for the service have been pro- vided , or are being provided . 35. Every line ...
Сторінка 76
Arthur Eugene Watson. which they are erecting , and of all of the same that they have in use , as are required by the ... erected under permits of this Board or the Board of Electrical Subways , shall allow the same to be used by other ...
Arthur Eugene Watson. which they are erecting , and of all of the same that they have in use , as are required by the ... erected under permits of this Board or the Board of Electrical Subways , shall allow the same to be used by other ...
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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.