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Книги Книги 1 - 10 з 29 у Bushings must be long enough to bush the entire length of the hole in one continuous....
" Bushings must be long enough to bush the entire length of the hole in one continuous piece, or else the hole must first be bushed by a continuous waterproof tube. This tube may be a conductor, such as iron pipe, but in that case an insulating bushing... "
Agents' and Inspectators Pocket-book of Fire Protection - Сторінка 106
автори: George Velten Steeb - 1902 - 218 стор.
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Transactions of the American Society of Mechanical Engineers

American Society of Mechanical Engineers - 1898
...they may pass by non-combustible, nonabsorptive insulating tubes, such as glass or porcelain. Rushings must be long enough to bush the entire length of the...one continuous piece, or else the hole must first be busbed by a continuous waterproof tube, which may be a conductor, such as iron pipe ; the tube then...
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Electric Lighting: A Practical Exposition of the Art, for the Use of ..., Том 2

Francis Bacon Crocker - 1901
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Bushings must be long enough to bush the entire length of the hole in one continuous piece, or els3 the hole must first be bushed by a continuous waterproof tube, which may be a conductor, such...
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International Library of Technology: A Series of Textbooks for Persons ...

1902
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Bushings must be long enough to bush the entire length...which may be a conductor, such as iron pipe; the tube is then to have a nonconducting bushing pushed in at each end so as to keep the wire absolutely out...
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Standard wiring for electric light and power: as adopted by the Fire ...

Harry Cooke Cushing - 1902 - 152 стор.
...clear through and allow a projection of at least a quarter of an inch on both ends. Bushings should be long enough to bush the entire length of the hole in one continuous piece, or else the hole should first be bushed by a continuous water-proof tube, which may be a conductor, such Circuit Breaker....
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Science and Industry, Том 7

1902
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Bushings must be long enough to bush the entire length of the hole in one continuous piece. Transformers must not be placed inside of any building, excepting central stations, unless by special...
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Practical Lessons in Electricity. Elements of Electricity. The Electric Current

American School (Lansing, Ill.) - 1903 - 221 стор.
...clear through and allow a projection of at least a quarter of an inch on both ends. Bushings should be long enough to bush the entire length of the hole in one continuous piece ; or else the hole should first be bushed by a continuous waterproof tube, which may be a conductor, such as iron pipe,...
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International Library of Technology: A Series of Textbooks ..., Том 14,Частина 2

1906
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Bushings must be long enough to bush the entire length...must first be bushed by a continuous waterproof tube. This tube may be a conductor, such as iron pipe, but in that case an insulating bushing must be pushed...
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Cyclopedia of Applied Electricity: Current measurements; Wiring; Telegraph

American School (Chicago, Ill.) - 1905
...clear through and allow a projection of at least a quarter of an inch on both ends. Bushings should be long enough to bush the entire length of the hole in one continuous piece; or else the hole should first be bushed by a continuous waterproof tube, which may be a conductor, such as iron pipe,...
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Storage Batteries ; Incandescent Lighting ; Arc Lighting ; Interior Wiring

1906 - 550 стор.
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Bushings must be long enough to bush the entire length...must first be bushed by a continuous waterproof tube. This tube may be a conductor, such as iron pipe, but in that case an insulating bushing must be pushed...
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Cyclopedia of Engineering: A Manual of Steam Boilers, Steam Pumps ..., Том 5

Louis Derr - 1906
...clear through and allow a projection of at least a quarter of an inch on both ends. Bushings should be long enough to bush the entire length of the hole in one continuous piece; or else the hole should first be bushed by a continuous waterproof tube, which may be a conductor, such as iron pipe,...
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