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 23
Сторінка 46
... insulating power , not easily abraded ; they must be firmly secured to properly insu- lated and substantially built supports . All tie wires must have an insulation equal to that of the conducting wires . 2. All joints must be so made ...
... insulating power , not easily abraded ; they must be firmly secured to properly insu- lated and substantially built supports . All tie wires must have an insulation equal to that of the conducting wires . 2. All joints must be so made ...
Сторінка 47
... insulation free from flaws , and projecting over the hook in cup form . 8. Service blocks must be protected by at least two coats of water - proof paint over their entire surface ; and when used to support rubber hooks , must have at ...
... insulation free from flaws , and projecting over the hook in cup form . 8. Service blocks must be protected by at least two coats of water - proof paint over their entire surface ; and when used to support rubber hooks , must have at ...
Сторінка 48
... insulation will not be required . IO . Service wires must come in contact with nothing save air , and their insulating supports , except in unavoid- able cases , when a wire with an extra heavy insulation suitable for the purpose must ...
... insulation will not be required . IO . Service wires must come in contact with nothing save air , and their insulating supports , except in unavoid- able cases , when a wire with an extra heavy insulation suitable for the purpose must ...
Сторінка 49
... insulation cov- ering . 19. When wires pass through walls , floors , partitions , etc. , in - doors , glass ... insulated from the circuit . 21. Each lamp must be provided with a proper hand switch , and also with an automatic switch ...
... insulation cov- ering . 19. When wires pass through walls , floors , partitions , etc. , in - doors , glass ... insulated from the circuit . 21. Each lamp must be provided with a proper hand switch , and also with an automatic switch ...
Сторінка 50
... insulated upon dry wood , filled to prevent absorption of moisture . They must be kept thoroughly clean and dry . They must be provided with a reliable automatic regulating device , or a competent person must be in attendance near the ...
... insulated upon dry wood , filled to prevent absorption of moisture . They must be kept thoroughly clean and dry . They must be provided with a reliable automatic regulating device , or a competent person must be in attendance near the ...
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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.