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 10
Сторінка 21
... possible to employ , the proper pressure for the lamps being attained by transformers or converters . Lamps of comparatively low voltage can be successfully used . Two calculations , alike in nature to the previous cases for ...
... possible to employ , the proper pressure for the lamps being attained by transformers or converters . Lamps of comparatively low voltage can be successfully used . Two calculations , alike in nature to the previous cases for ...
Сторінка 48
... possible , slant upward . If an approved glass insulator for bushing the hole is used , the extra heavy water - proof insulation will not be required . IO . Service wires must come in contact with nothing save air , and their insulating ...
... possible , slant upward . If an approved glass insulator for bushing the hole is used , the extra heavy water - proof insulation will not be required . IO . Service wires must come in contact with nothing save air , and their insulating ...
Сторінка 49
... possible at the top , is used , it must be provided with some protector or spark arrester , reaching to a safe distance above the light . Broken or cracked globes must be replaced by perfect ones imme- diately . ( By inflammable ...
... possible at the top , is used , it must be provided with some protector or spark arrester , reaching to a safe distance above the light . Broken or cracked globes must be replaced by perfect ones imme- diately . ( By inflammable ...
Сторінка 52
... possible , slant upward . If an approved glass insulator for bushing the holes is used the extra heavy insulation will not be required . II . Service wires must come in contact with nothing save air , and their insulating supports ...
... possible , slant upward . If an approved glass insulator for bushing the holes is used the extra heavy insulation will not be required . II . Service wires must come in contact with nothing save air , and their insulating supports ...
Сторінка 54
... possible , be kept from contact with any part of the building by means of such insulators , rather than to depend upon the insulation covering . Where complete separation from the building by air space and insulators is not possible ...
... possible , be kept from contact with any part of the building by means of such insulators , rather than to depend upon the insulation covering . Where complete separation from the building by air space and insulators is not possible ...
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.