Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Сторінка 42
... endanger the insulation or decrease the efficiency of operation ; shall not spark appreciably with proper care of the commutator and adjust- ment of brushes , nor under considerable varia- tion of load ; shall have an insulation resist ...
... endanger the insulation or decrease the efficiency of operation ; shall not spark appreciably with proper care of the commutator and adjust- ment of brushes , nor under considerable varia- tion of load ; shall have an insulation resist ...
Сторінка 46
... insulated wires be carried in such proximity to heated surfaces , vapors , or air as to endanger their insulation . When the plant shall be ready for operation Plant and In the dynamo ( s ) shall be run for a period of days by competent ...
... insulated wires be carried in such proximity to heated surfaces , vapors , or air as to endanger their insulation . When the plant shall be ready for operation Plant and In the dynamo ( s ) shall be run for a period of days by competent ...
Сторінка 52
... endanger the insulation or decrease the efficiency of operation ; shall not spark unduly with proper care of the ... insulated from each other ; - f usuar working current !. shall be adapted to operate at such speed as will 52 ELECTRIC ...
... endanger the insulation or decrease the efficiency of operation ; shall not spark unduly with proper care of the ... insulated from each other ; - f usuar working current !. shall be adapted to operate at such speed as will 52 ELECTRIC ...
Сторінка 56
... insulated wires be car- ried in such proximity to heated surfaces , vapors , or air as to endanger their insulation . ( See p . 46 , sec . 25. ) ( See p . 47 , sec . 26. ) ( See Note : p . 47 , sec . 56 ELECTRIC LIGHTING SPECIFICATIONS ...
... insulated wires be car- ried in such proximity to heated surfaces , vapors , or air as to endanger their insulation . ( See p . 46 , sec . 25. ) ( See p . 47 , sec . 26. ) ( See Note : p . 47 , sec . 56 ELECTRIC LIGHTING SPECIFICATIONS ...
Сторінка 59
... endanger the insulation or de- crease the efficiency of operation ; shall have an insulation resistance of not less than ohms between all parts insulated from each other ; shall be adapted to operate at such speed as will allow the use ...
... endanger the insulation or de- crease the efficiency of operation ; shall have an insulation resistance of not less than ohms between all parts insulated from each other ; shall be adapted to operate at such speed as will allow the use ...
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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