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Книги Книги 31 - 35 з 35 у Must be so placed in wet places that an air space will be left between conductors....
" Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under,... "
Electric Lighting: A Practical Exposition of the Art, for the Use of ... - Сторінка 459
автори: Francis Bacon Crocker - 1901
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Theoretical and Practical Electrical Engineering: Comprising a Course ..., Том 1

Louis Denton Bliss - 1922
...that they cannot come in contact accidentally. Wires Theoretical and Practical Electrical Engineering should be run over, rather than under, pipes upon which moisture is likely to gather. Wires must not be installed in wooden mouldings or upon porcelain insulators in elevator shafts. Metal...
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Wiring for Light and Power: A Detailed and Fully Illustrated Commentary on ...

Terrell Croft - 1924 - 551 стор.
...cannot come in contact with the pipe accidentally RECOMMENDATION. — It is recommended that wires be run over, rather than under, pipes upon which moisture...which, by leaking, might cause trouble on a circuit. For Discussion Of The Above Requirements, see Rule 501m. 61 1t. GENERAL REQUIREMENTS FOR USE OF CONDUCTORS....
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Wiring for Light and Power: A Detailed and Fully Illustrated Commentary on ...

Terrell Croft - 1924 - 551 стор.
...proximity to water pipes or tauks are considered to be exposed to moisture. It is recommended that wires be run over, rather than under, pipes upon which moisture is likely to gather or which may leak. Where Conductors Cross Pipes In Damp Places, an air space should always be provided between...
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Wisconsin State Electrical Code, Том 2

1944
...permanently maintained between them and pipes which they cross. Where practicable, conductors shall be run over, rather than under, pipes upon which moisture is likely to gather or which may leak. Order 13-3212. Protection from Mechanical Injury. Where open conductors cross ceiling joists...
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Encyclopedia of Engineering: A Treatise on Boilers, Steam Engines ..., Том 3

Calvin Franklin Swingle - 1906
...conductors and pipes in crossing, and the former must be run in such a way that they cano FIGURE 142. not come in contact with the pipe accidentally. Wires...which, by leaking, might cause trouble on a circuit. This is a rule that is very often violated, as much work is done using loom, as shown at the left of...
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