Electric Lighting SpecificationsW. J. Johnstone Company, Limited, 1892 - 176 стор. |
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Результати 6-10 із 17
Сторінка 120
... separated therefrom by asbestos or cement . LIGHTNING ARRESTERS - Must be : 1. Attached to each side of every overhead circuit connected with the station . 2. In plain sight . 3. On the switchboard , or in an equally accessible place ...
... separated therefrom by asbestos or cement . LIGHTNING ARRESTERS - Must be : 1. Attached to each side of every overhead circuit connected with the station . 2. In plain sight . 3. On the switchboard , or in an equally accessible place ...
Сторінка 124
... separated ten 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 ...
... separated ten 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 ...
Сторінка 125
... Separated not less than six inches , where they enter buildings as service conductors , and be provided with a double pole fusible cut - out , as near as possible to the point of entrance to the building , and outside the walls when ...
... Separated not less than six inches , where they enter buildings as service conductors , and be provided with a double pole fusible cut - out , as near as possible to the point of entrance to the building , and outside the walls when ...
Сторінка 127
... other conductors or conducting material ( except arc light wires ) , they should be separated therefrom by some continuous non - conductor at least one inch . In crossing arc light wires the low - ELECTRIC LIGHTING SPECIFICATIONS . 127.
... other conductors or conducting material ( except arc light wires ) , they should be separated therefrom by some continuous non - conductor at least one inch . In crossing arc light wires the low - ELECTRIC LIGHTING SPECIFICATIONS . 127.
Сторінка 128
... Separated at least six inches . 2. Provided with a durable moisture - proof covering . 3. Supported by porcelain or glass insula- tors . Moisture - proof and non - inflammable tubing may be accepted in lieu of such construc- tion . No ...
... Separated at least six inches . 2. Provided with a durable moisture - proof covering . 3. Supported by porcelain or glass insula- tors . Moisture - proof and non - inflammable tubing may be accepted in lieu of such construc- tion . No ...
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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