Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Сторінка 9
... - TWO OR THREE - WIRE . Franchises and Permits Division of Circuits Points of Control Poles Setting and Guying Distances Painting 95 95 95 96 96 96 96 Gains and Cross - arms Pins and Insulators Steps Soil CONTENTS . ix.
... - TWO OR THREE - WIRE . Franchises and Permits Division of Circuits Points of Control Poles Setting and Guying Distances Painting 95 95 95 96 96 96 96 Gains and Cross - arms Pins and Insulators Steps Soil CONTENTS . ix.
Сторінка 20
... distances be- tween groups of lamps rather than the total distance from the centre of distribution to the farthest lamp on any circuit , and upon the usual variation in load rather than extreme variations ; the object should be ...
... distances be- tween groups of lamps rather than the total distance from the centre of distribution to the farthest lamp on any circuit , and upon the usual variation in load rather than extreme variations ; the object should be ...
Сторінка 21
... secondaries in series . If it is desirable . to operate a direct current system where the cost of copper becomes excessive on account of distances or other limiting conditions , this item of expense , as well as the accom- INTRODUCTION .
... secondaries in series . If it is desirable . to operate a direct current system where the cost of copper becomes excessive on account of distances or other limiting conditions , this item of expense , as well as the accom- INTRODUCTION .
Сторінка 45
... distance of at least one brush jig for trimming the brushes ; one insulating baseframe provided with rails and a suitable device for shifting the position of the dynamo to alter the belt tension ; and one headboard switch for cutting ...
... distance of at least one brush jig for trimming the brushes ; one insulating baseframe provided with rails and a suitable device for shifting the position of the dynamo to alter the belt tension ; and one headboard switch for cutting ...
Сторінка 56
... distance of any ground from the station , and one pair of efficient lighting arresters . There shall also be provided one testing magneto capable of ringing through ohms . This contractor shall carry to the switch- board location at all ...
... distance of any ground from the station , and one pair of efficient lighting arresters . There shall also be provided one testing magneto capable of ringing through ohms . This contractor shall carry to the switch- board location at all ...
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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