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Книги Книги 1 - 10 з 16 у Special attention is called to the fact that switchboards should not be built down....
" Special attention is called to the fact that switchboards should not be built down to the floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four inches... "
New Catechism of Electricity: A Practical Treatise - Сторінка 402
автори: Nehemiah Hawkins - 1896 - 541 стор.
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...placed as to reduce to a minimum the danger of communicating fire to adjacent combustible material Special attention is called to the fact that switchboards should not be built down to the floor, rior up to the ceiling, but a space of at least eighteen inches, or two feet, should be left between...
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Transactions, Том 14

American Institute of Electrical Engineers - 1897
...placed as to reduce to a minimum the danger of communicating fire to adjacent combustible material. Special attention is called to the fact that switchboards...floor, nor up to the ceiling, but a space of at least ten to twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Transactions of the American Society of Mechanical Engineers

American Society of Mechanical Engineers - 1898
...placed as to reduce to a minimum the danger of communicating fire to adjacent combustible material. Special attention is called to the fact that switchboards...floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Distributing system and lamps

Francis Bacon Crocker - 1901 - 505 стор.
...placed as to reduce to a minimum the danger of communicating tire to adjacent combustible material. Special attention is called to the fact that switchboards...floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen lo twenty-four...
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Electric lighting: a practical exposition of the art, for the use of ..., Том 2

Francis Bacon Crocker - 1901
...communicating fire to adjacent combustible material. Special attention is called to the fact tl,at switchboards should not be built down to the floor, nor up to the ceiling, but a space of at lea.st ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Electrical Engineer's Pocket-book: A Hand-book of Useful Data for ...

Horatio Alvah Foster - 1901 - 987 стор.
...adjacent combustible material. Special attention is called to the fact that switchboards should riot be built down to the floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Minutes of Proceedings of the Institution of Civil Engineers, Том 143

Institution of Civil Engineers (Great Britain) - 1901
...from generators to switchboards must be readily accessible. Bus bars may be made of bare metal. '• Switchboards should not be built down to the floor, nor up to the ceiling; must be made of incombustible insulating material ; and must be accessible from all sides when the...
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Standard wiring for electric light and power: as adopted by the Fire ...

Harry Cooke Cushing - 1902 - 152 стор.
...separated therefrom by a non-inflammable, non-absorptive insulating material. A slate slab is preferable. Special attention is called to the fact that switchboards...floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Practical lessons in electricity. Elements of electricity. The electric current

American School (Chicago, Ill.), Lawrence K. Sager, Harry Cooke Cushing, Francis Bacon Crocker - 1903 - 221 стор.
...separated therefrom by a non-inflammable, non-absorptive insulating material. A slate slab is preferable. Special attention is called to the fact that switchboards...floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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Cyclopedia of Applied Electricity: Current measurements; Wiring; Telegraph

American School (Chicago, Ill.) - 1905
...A slate slab is preferable. Special attention is called to the fact that switchboards should not bo built down to the floor, nor up to the ceiling, but a space of at least ten or twelve inches should be left between the floor and the board, and from eighteen to twenty-four...
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