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Книги Книги 11 - 20 з 20 у Must be so placed that moisture cannot form a cross connection between them, not....
" 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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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 183 стор.
...device. This ruling applies to joints and splices in all classes of wiring covered by these rules.] g. Telegraph, telephone, and similar 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...
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Transactions, Том 14

American Institute of Electrical Engineers - 1897
...less than a foot apart, and not in contact with any substance other than their insulating supports Service blocks must be covered over their entire surface with at least two coats of waterproof paint. c. Must be at least seven feet above the highest point of flat roofs, and at least one foot above the...
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Transactions of the American Society of Mechanical Engineers

American Society of Mechanical Engineers - 1898
...less than a foot apart, and not in contact with any substance other than their insulating supports. Service blocks must be covered over their entire surface with at least two coats of waterproof paint. c. Must be at least seven feet above the highest point of flat roofs, and at least one foot above the...
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Electrical Engineer's Pocket-book: A Hand-book of Useful Data for ...

Horatio Alvah Foster - 1901 - 987 стор.
...less than a foot apart, and not in contact with any sul>stance other than their insulating supports. Service blocks must be covered over their entire surface with at least two coats of waterprooi paint. c. Must be at least seven U;t;t above the highest point ot flat roofs, and at least...
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Agents' and Inspectators Pocket-book of Fire Protection

George Velten Steeb - 1902 - 218 стор.
...line wires, other than service, must have an approved weatherproof, or rubber insulating covering. Service blocks must be covered over their entire surface with at least two coats of waterproof paint. To prevent contact with roofs by sagging the wires must be run at least 7 feet above the highest poinl...
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Electric light wiring

Charles Edwin Knox - 1907 - 219 стор.
...any substance other than their insulating supports. Wooden blocks to which insulators are attached must be covered over their entire surface with at least two coats of water-proof paint. c. Must be at least seven feet above the highest point of flat roofs, and at least one foot above the...
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Building Code of Baltimore: Being Ordinance No. 155 of the Mayor and City ...

Baltimore (Md.) - 1908 - 506 стор.
...substance other than their insulating supports. PAR. 31. Service blocks shall l>e covered service blocks, over their entire surface with at least two coats of water-proof paint. PAR. 32. All wires shall be supported by s"wp!?«ts for means of petticoat insulators of glass or porcelain....
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Medical Electricity Röntgen Rays and Radium: With a Practical Chapter on ...

Sinclair Tousey - 1915 - 1219 стор.
...any substance other than their insulating supports. Wooden blocks to which insulators are attached must be covered over their entire surface with at least two coats of waterproof paint. (/) Must be so spliced or joined as to be both mechanically and electrically secure without solder....
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Standard Wiring for Electric Light and Power: As Adopted by the Fire ...

Harry Cooke Cushing - 1915 - 224 стор.
...any substance other than their insulating supports. Wooden blocks to which insulators are attached must be covered over their entire surface with at least two coats of waterproof paint. For conduit work, imres must be placed so as to conform to rules for unlined conduit except that conduit...
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Medical electricity and Rontgen rays

Sinclair Tousey - 1921 - 1329 стор.
...any substance other than their insulating supports. Wooden blocks to which insulators are attached must be covered over their entire surface with at least two coats of waterproof paint. (/) Must be so spliced or joined as to be both mechanically and electrically secure without solder....
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