Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Сторінка 20
... centre of distribution and the farthest lamp in the installation . No fixed or arbitrary rule can be laid down , but each case must be considered by itself . The loss should be based not so much on the total number of lamps wired for as ...
... centre of distribution and the farthest lamp in the installation . No fixed or arbitrary rule can be laid down , but each case must be considered by itself . The loss should be based not so much on the total number of lamps wired for as ...
Сторінка 23
... centre of distribution and loca- tion of the risers , and of knowing their exact position before making an estimate . Of no less importance is the position of all outlets and the number of lights per outlet , since this determines the ...
... centre of distribution and loca- tion of the risers , and of knowing their exact position before making an estimate . Of no less importance is the position of all outlets and the number of lights per outlet , since this determines the ...
Сторінка 25
... centre of distribution and of the risers ; where the outside mains enter the building overhead it is sometimes advisable . from considerations of economy or conven- ience to have a second centre of distribution located with reference to ...
... centre of distribution and of the risers ; where the outside mains enter the building overhead it is sometimes advisable . from considerations of economy or conven- ience to have a second centre of distribution located with reference to ...
Сторінка 77
... distribution . in Pressure . The fall of potential between the switch- 85. Variation board ( centre of distribution ) and the ( farthest lamp ) shall not exceed at load per cent . of the initial pressure ; this difference to S be ...
... distribution . in Pressure . The fall of potential between the switch- 85. Variation board ( centre of distribution ) and the ( farthest lamp ) shall not exceed at load per cent . of the initial pressure ; this difference to S be ...
Сторінка 89
... centre of distribution ( shall be carried to -- and thence upward in ( channels , elevator shaft , etc. , with location ) to their respective junction boxes . S Risers Feeders From the ( riser ) feeder S junction boxes mains . shall be ...
... centre of distribution ( shall be carried to -- and thence upward in ( channels , elevator shaft , etc. , with location ) to their respective junction boxes . S Risers Feeders From the ( riser ) feeder S junction boxes mains . shall be ...
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Загальні терміни та фрази
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