Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Сторінка 64
... endanger the insulation or decrease the efficiency of opera- tion ; shall not spark appreciably with proper care of the commutator and adjustment of the brushes , nor under considerable variation of the load ; shall have an insulation ...
... endanger the insulation or decrease the efficiency of opera- tion ; shall not spark appreciably with proper care of the commutator and adjustment of the brushes , nor under considerable variation of the load ; shall have an insulation ...
Сторінка 68
... insulated with ; all wires of systems carrying over -volts shall be run -- ; where of opposite polarity shall be separated ... endanger their insulation . ( See p . 46 , sec . 25. ) 68 ELECTRIC LIGHTING SPECIFICATIONS . Cables to Switchboard.
... insulated with ; all wires of systems carrying over -volts shall be run -- ; where of opposite polarity shall be separated ... endanger their insulation . ( See p . 46 , sec . 25. ) 68 ELECTRIC LIGHTING SPECIFICATIONS . Cables to Switchboard.
Сторінка 71
... endanger any part of the dynamo , appliances or lamps , nor to cause any perceptible change in the balance remaining ... insulation or decrease the efficiency of opera- tion ; shall have an insulation resistance of 66. Founda- tions . 67 ...
... endanger any part of the dynamo , appliances or lamps , nor to cause any perceptible change in the balance remaining ... insulation or decrease the efficiency of opera- tion ; shall have an insulation resistance of 66. Founda- tions . 67 ...
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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