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" Must be so placed that moisture cannot form a cross connection between them, not less than a foot apart, and not in contact with any substance other than their insulating supports. "
Electric Lighting Specifications for the Use of Engineers and Architects - Сторінка 122
автори: Earle Abbott Merrill - 1892 - 176 стор.
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Convention

National Electric Light Association. Convention - 1892
...soldering fluid is approved : Saturated Solution of Zinc 5 parts. Alcohol 4 parts. Glycerine i part. .«b1 Conductors should not be run over or attached to buildings...least two coats of waterproof paint and so maintained. WIRES FOR HIGH AND Low POTENTIAL circuits should not occupy the same support. TELEGRAPH, TELEPHONE...
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...preservation, and covered with an insulation equal to that on the conductors. 11. Service Blocks : (a) Must be covered over their entire surface with at least two coats of waterproof paint. (6) Telegraph, telephone, and similar wires must not be placed on the same cross-arm with electric...
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...preservation, and covered with an insulation equal to that on the conductors. 11. Service Blocks : (a) Must lie covered over their entire surface with at least two coats of waterproof paint. (b) Telegraph, telephone, and similar wires must not be placed on the same cross-arm with electric...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 128 стор.
...preservation, and covered with an insulation equal to that on the conductors. it. SERVICE BLOCKS a. Must be covered over their entire surface with at least two coats of waterproof paint. b. Telegraph.telephone, and similar wires must not be placed on the same cross-arm with electric light...
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Electrical Engineer, Том 17

1894
...being, or Is to be, used, bub on separate poles or structures always easily Inspected. Service Blockt. Must be covered over their entire surface with at least two coats of waterргооГ paint and so maintained. Telegraph, telephone and similar wires must not be placed...
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The Electrical Transmission of Energy: A Manual for the Design of Electrical ...

Arthur Vaughan Abbott - 1895 - 586 стор.
...power is being, or is to be, used, but on separate poles or structure always easily inspected. 125. SERVICE BLOCKS. Must be covered over their entire...telephone, and similar wires must not be placed on the same an with electric light or power wires, and should not be placed on the same structuri or pole. 126....
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...equal to that on the conductors. (See Definitions). cross-arm with electric light or power wires. 11. SERVICE BLOCKS:— Must be covered over their entire...surface with at least two coats of waterproof paint. INTERIOR CONDUCTORS. 12. ALL INTERIOR CONDUCTORS:— a. Must be covered where they enter buildings...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...telephone and similar wires must not be placed on the same cross-arm with electric light or power wires. n. SERVICE BLOCKS : Must be covered over their entire...surface with at least two coats of waterproof paint. 12. Au, INTERIOR CONDUCTORS : a. Must be covered where they enter buildings from outside terminal insulators...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...telephone and similar wires must not be placed on the same crossarm with electric light or power wires. 11. SERVICE BLOCKS: — Must be covered over their entire surface with at least two coats of water proof paint. 12. INTERIOR CONDUCTORS. All Interior Conductors : — a. Must be covered where...
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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 183 стор.
...wires must not be placed on the same cross-arm with electric light or power wires. 11. Service-blocks : Must be covered over their entire surface with at least two coats of waterproof paint. FIB. 28 Fia. 32 Fio. i FIG. 28. — Showing Guard-iron. FIG. 29. — Petticoat Insulator. Fio. 30....
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