Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Сторінка 29
Earl Abbott Merrill. ( Insulation . Wires to switch- boards ? Wires to be run . Capacity . Number . Material . Size ... Switch- Knife . boards ? Automatic . Instru- Single pole . Switches . Double " ments . Three wire . Cut - outs ...
Earl Abbott Merrill. ( Insulation . Wires to switch- boards ? Wires to be run . Capacity . Number . Material . Size ... Switch- Knife . boards ? Automatic . Instru- Single pole . Switches . Double " ments . Three wire . Cut - outs ...
Сторінка 49
... Switch- instruments used in the simplest of installa- tions . The ... switches . dynamo switches . S riser { feeder } switches . switches for connecting ... knife switches ; all other switches shall have sliding contacts , and shall ...
... Switch- instruments used in the simplest of installa- tions . The ... switches . dynamo switches . S riser { feeder } switches . switches for connecting ... knife switches ; all other switches shall have sliding contacts , and shall ...
Сторінка 61
... knife switch and double - pole fusible cut - out for each of the above field circuits , including that of the exciting dynamo unless lights are oper- ated therefrom , in which case a switch and cut out shall be placed in the main ...
... knife switch and double - pole fusible cut - out for each of the above field circuits , including that of the exciting dynamo unless lights are oper- ated therefrom , in which case a switch and cut out shall be placed in the main ...
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Age money Alternating Current ampère meter apparatus appliances arc lamps armature attached automatic baseframe bidder shall fill bids building c. p. lamps cables candle power capacity carried ceiling cent centre of distribution cleats conductors conduit connections contractor shall furnish cross-arms cuits cut-out boxes cut-outs and switches Direct Current double-pole dynamo or circuit dynamos Trade number erect the following fastened fill out completely fixture foundation(s full load fuses hand regulator incandescent lamps inches incombustible bases installation insulated wire insulation resistance junction boxes knife switch least lightning arresters main wires ments moisture moisture-proof molding necessary non-combustible number of lights number or designation ohms operation outlets pipes placed plant porcelain potential pressure proper protected pulleys purchaser Rating of exciters riser feeder schedule securely set screws shunt Sockets soldered spark arresters specification steam struction switchboard taps three-wire tightened tion tube two-wire voltage voltmeter volts walls waterproof wire smaller