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 28
... . 21.68 x ( 100 - per cent . loss in Lamps . ) ( Resistance of one Lamp ) x ( per cent . loss in wire . ) Circular mils . Kx ( mean distance ) x ( No. of Lamps . ) EDISON SYSTEM . EDISON GAUGE . 3 55 5 71 28 Edison System, 28-31.
... . 21.68 x ( 100 - per cent . loss in Lamps . ) ( Resistance of one Lamp ) x ( per cent . loss in wire . ) Circular mils . Kx ( mean distance ) x ( No. of Lamps . ) EDISON SYSTEM . EDISON GAUGE . 3 55 5 71 28 Edison System, 28-31.
Сторінка 29
... .0000525 .60542734 Formula for Calculating Wire for New Cir . mils . Style Lamps . ( No. of lamps ) x ( mean distance ) x 10 . ( per cent . loss . ) Divide by 4 for 3 wire system , 250 188 333 250 200 313 250 208 250 188 29.
... .0000525 .60542734 Formula for Calculating Wire for New Cir . mils . Style Lamps . ( No. of lamps ) x ( mean distance ) x 10 . ( per cent . loss . ) Divide by 4 for 3 wire system , 250 188 333 250 200 313 250 208 250 188 29.
Сторінка 45
... . KILO - WATT is the unit for dynamo and even transforms capacity . It means 1000 watts and hence large capacities can thus be expressed by use of but few figures . RULES AND REGULATIONS Of the New England Insurance Exchange and 45.
... . KILO - WATT is the unit for dynamo and even transforms capacity . It means 1000 watts and hence large capacities can thus be expressed by use of but few figures . RULES AND REGULATIONS Of the New England Insurance Exchange and 45.
Сторінка 53
... means of specially insulated con- ductors ( and a space of ten inches should be maintained between them ) to a suitable location . INSIDE WIRING . 15. Copper wire used for incandescent lighting must be procured for manufacturers whose ...
... means of specially insulated con- ductors ( and a space of ten inches should be maintained between them ) to a suitable location . INSIDE WIRING . 15. Copper wire used for incandescent lighting must be procured for manufacturers whose ...
Сторінка 54
... 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 , an approved insulation covering , that shall be water - proof and ...
... 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 , an approved insulation covering , that shall be water - proof and ...
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.