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" Must be capable of being disconnected at the power plant, or of being divided into sections, so that, in case of fire on the railway route, the current may be shut off from... "
Electric Lighting Specifications for the Use of Engineers and Architects - Сторінка 137
автори: Earle Abbott Merrill - 1892 - 176 стор.
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The Electrical Review, Том 8

1891
...TROLLEY WIRES. Trolley Wire*— Must be : 1. No smaller than No. 0 B. and S. copper, or No. 4 B. and S. silicon bronze, and must readily stand the strain...insulated from their supports, and in case of the side or double-pole construction, the supports shall also be insulated from the poles immediately outside the...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 128 стор.
...and in full view and reach of the attendant. 38. TROLLEY WIRES— a. Must be no smaller than No. o B. & S. copper or No. 4 B. & S. silicon bronze, and must...readily stand the strain put upon them when in use. b. Must be well insulated from their supports, and, in case of the side or doublepole construction,...
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Electrical Engineer, Том 17

1894
...view of the attendant. Trollty Wire». 1. Must be no smaller than No. 0 B. &S. copper, or No. 4 B. 4 S. silicon bronze, and must readily stand the strain put upon them when In use. 2. Must be well insulated from their «upoorts, and in case of the side or double pole construction, the...
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...base and in full view and reach of the attendant. (See Definitions). 39. TROLLEY WIRES:— b. Must be well insulated from their supports, and in case of...also be insulated from the poles immediately outside of the trolley wire. c. Must be capable of being disconnected at the power house, or of being divided...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...reach of the attendant. (See Definitions.) . 39. TROU.EY WIRES : a. Must be no smaller than No. o, B. & S. copper or No. 4, B. & S. silicon bronze, and...readily stand the strain put upon them when in use. b. Must be well insulated from their supports, and in case of the side or double pole constnfction,...
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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 183 стор.
...should be mounted on a non-combustible base. 39. Trolley- wires : a. Must be no smaller than No. 0 B. & S. copper or No. 4 B. & S. silicon bronze, and must...readily stand the strain put upon them when in use. 6. Must be well insulated from their supports, and in case of the side or double-pole construction,...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...submitted for approval before being used. 39. TROLLEY WIRES . — a. Must be no smaller than No o B & S. copper or No. 4 B. & S. silicon bronze, and must...readily stand the strain put upon them when in use b. Must be well insulated from their supports, and in case of the side or double pole construction...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...attendant. (See Definitions.) 39. TROHEY WIRES : a. Must be no smaller than No. o, B. & S. copper or No. \, B. & S. silicon bronze, and must readily stand the strain put upon them when in use. b. Must be well insulated from their supports, and in case of the side or double pole construction,...
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Transactions, Том 14

American Institute of Electrical Engineers - 1897
...connected to " earth." TROLLEY WIRES. j. Must not be smaller than No. o n. & s. copper or No. 4 B. ft s. silicon bronze, and must readily stand the strain put upon them when in use. k. Must have a double insulation from the ground. In wooden pole construction, the pole will be considered...
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Transactions of the American Society of Mechanical Engineers

American Society of Mechanical Engineers - 1898
...effectively connected to " earth." TROLLEY WIRES. j. Must not be smaller than No. 0 B. & S. copper or ]STo. 4 B. & S. silicon bronze, and must readily stand the strain put upon them when in use. k. Must have a double insulation from the ground. In wooden pole construction the pole will be considered...
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