Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Результати 6-10 із 12
Сторінка 129
... constructed or placed that difficulty will be experienced in removing or replacing the conductors . 4. Subject to mechanical injury by saws , chisels , or nails . 5. Supplied with a twin conductor in a single tube where a current of ...
... constructed or placed that difficulty will be experienced in removing or replacing the conductors . 4. Subject to mechanical injury by saws , chisels , or nails . 5. Supplied with a twin conductor in a single tube where a current of ...
Сторінка 130
... Constructed with bases of non - combus- tible and moisture - proof material . 4. So constructed and placed that an arc cannot be maintained between the terminals by the fusing of the metal . 5. So placed that on any combination fixt ...
... Constructed with bases of non - combus- tible and moisture - proof material . 4. So constructed and placed that an arc cannot be maintained between the terminals by the fusing of the metal . 5. So placed that on any combination fixt ...
Сторінка 149
... constructed with or inclosed in a fireproof or incombus- tible case , and located at a point as near as possible to that at which the primary wires . enter the building . Between these points the conductors must be heavily insulated ...
... constructed with or inclosed in a fireproof or incombus- tible case , and located at a point as near as possible to that at which the primary wires . enter the building . Between these points the conductors must be heavily insulated ...
Сторінка 151
Earl Abbott Merrill. and other parts of electric systems are to be so constructed , mounted and secured as to insure complete and continuous insulation ; with such exceptions only as are hereinbefore stated , and that in no case shall ...
Earl Abbott Merrill. and other parts of electric systems are to be so constructed , mounted and secured as to insure complete and continuous insulation ; with such exceptions only as are hereinbefore stated , and that in no case shall ...
Сторінка 157
... constructed that there shall be no arc between the points when thrown " on " or " off , " ( d ) automatic in its action ( not stop- ping between points when once started ) , ( e ) and indicate upon inspection whether the current be " on ...
... constructed that there shall be no arc between the points when thrown " on " or " off , " ( d ) automatic in its action ( not stop- ping between points when once started ) , ( e ) and indicate upon inspection whether the current be " on ...
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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