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" concealed between the pipe and shell of the fixture the insulation must be such as is required for fixture wiring for the electric light. 3. The whole installation must test free from "grounds." 4. The two installations must test perfectly free of connection... "
Electric Lighting Specifications for the Use of Engineers and Architects - Сторінка 132
автори: Earle Abbott Merrill - 1892 - 176 стор.
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Convention

National Electric Light Association. Convention - 1892
...lighting circuit. 2. The wires used with the fixtures must have a noninflammable insulation, or where concealed between the pipe and shell of the fixture,...test perfectly free of connection with each other. 9 PENDANTS AND SOCKETS. No portion of the lamp socket exposed to contact with outside objects must...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...gas-lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "grounds."...
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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 183 стор.
...gas-lighting circuit. b. The wires used with the fixtures must have a nonintlammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installations must test free from...
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Transactions, Том 14

American Institute of Electrical Engineers - 1898
...lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "grounds."...
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A textbook on electric lighting and railways: geometrical drawing ...

International Correspondence Schools - 1901
...gas-lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "grounds."...
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A Textbook on Electric Lighting and Railways: International ..., Том 4

1901
...gas-lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "...
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International Library of Technology: A Series of Textbooks for Persons ...

1902
...gas-lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "...
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Electric lighting: a practical exposition of the art, for the use of ...

Francis Bacon Crocker - 1904
...gas-lighting circuit. b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "grounds."...
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Transactions, Том 19

American Society of Mechanical Engineers - 1898
...circuit. ooo b. The wires used with the fixtures must have a non-inflammable insulation, or, where concealed between the pipe and shell of the fixture, the insulation must be such as required for fixture wiring for the electric light. c. The whole installation must test free from "...
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