A Hand-book of Wiring Tables for Arc, Incandescent Lighting, and Motor CircuitsBubier Publishing Company, 1892 - 76 стор. |
З цієї книги
Результати 6-10 із 10
Сторінка 56
... moisture , and to use only such as are provided with bases that will not absorb moisture . 40. When necessary , cut - out devices must be covered with some fire - proof and water - repelling material . 41. All cut - outs must be double ...
... moisture , and to use only such as are provided with bases that will not absorb moisture . 40. When necessary , cut - out devices must be covered with some fire - proof and water - repelling material . 41. All cut - outs must be double ...
Сторінка 58
... moisture from the inside of sockets . 60. The weight of every socket and lamp suspended by a cord must be borne by a ceiling block , rosette , or cleat , and by a knot under the bushing in the socket , in order to take all strain from ...
... moisture from the inside of sockets . 60. The weight of every socket and lamp suspended by a cord must be borne by a ceiling block , rosette , or cleat , and by a knot under the bushing in the socket , in order to take all strain from ...
Сторінка 60
... moisture exist , or in buildings snbject to me- chanical changes of piping , etc. 70. The signing of these Rules and Requirements shall constitute and be considered an agreement on the part of the signer , that such approved device or ...
... moisture exist , or in buildings snbject to me- chanical changes of piping , etc. 70. The signing of these Rules and Requirements shall constitute and be considered an agreement on the part of the signer , that such approved device or ...
Сторінка 64
... moisture ( e . g . porcelain or glass ) and so placed as to prevent the entrance of rain water along the wires ( e . g . the tubes must slope upward as they pass inward through the wall ) . 12. Both the ingoing and return wires should ...
... moisture ( e . g . porcelain or glass ) and so placed as to prevent the entrance of rain water along the wires ( e . g . the tubes must slope upward as they pass inward through the wall ) . 12. Both the ingoing and return wires should ...
Сторінка 67
... moisture , they must be carried out of con- tact with the walls , ceilings and the like on approved " insulators . " SECONDARY SYSTEMS . 31. In these systems where alternating currents of high electro - motive force are used on the main ...
... moisture , they must be carried out of con- tact with the walls , ceilings and the like on approved " insulators . " SECONDARY SYSTEMS . 31. In these systems where alternating currents of high electro - motive force are used on the main ...
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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.