Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Результати 1-5 із 21
Сторінка 23
... inches from floors , ceilings or walls ; it is only necessary in some cases to specify that all outlets shall be wired to , leaving the dimensional location of the outlet to the gasfitter , but with the rapid increase of buildings ...
... inches from floors , ceilings or walls ; it is only necessary in some cases to specify that all outlets shall be wired to , leaving the dimensional location of the outlet to the gasfitter , but with the rapid increase of buildings ...
Сторінка 91
... inch tube will be permitted only where space is ex- tremely limited . Tubes , whether concealed or on the sur- face , should be held in place by metal clips ; the use of staples for such purpose will not be allowed where it can be ...
... inch tube will be permitted only where space is ex- tremely limited . Tubes , whether concealed or on the sur- face , should be held in place by metal clips ; the use of staples for such purpose will not be allowed where it can be ...
Сторінка 101
... inch weather - proof rope for raising and lowering lamps . weather - proof rope feet inch { stranded cable for suspending lamps . ( double cleats for winding up sur- windlasses plus rope . ( Note . The specification for wiring must 188 ...
... inch weather - proof rope for raising and lowering lamps . weather - proof rope feet inch { stranded cable for suspending lamps . ( double cleats for winding up sur- windlasses plus rope . ( Note . The specification for wiring must 188 ...
Сторінка 123
... inches , except when covered ( in addition to insulation ) -by a waterproof , non - conduct- ing and non - inflammable tubing , which must be strong enough to protect the insulating covering from injury . Conductors thus placed may be ...
... inches , except when covered ( in addition to insulation ) -by a waterproof , non - conduct- ing and non - inflammable tubing , which must be strong enough to protect the insulating covering from injury . Conductors thus placed may be ...
Сторінка 124
... inches or more . 7. When passing through walls , floors , tim- bers , or partitions , treated as in central sta- tions under like conditions . Lamps and Other Devices . ARC LAMPS - Must be in every case : 1. Carefully isolated from ...
... inches or more . 7. When passing through walls , floors , tim- bers , or partitions , treated as in central sta- tions under like conditions . Lamps and Other Devices . ARC LAMPS - Must be in every case : 1. Carefully isolated from ...
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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