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" Conductors: The conductors shall be of copper, aluminum, or other non-corrodible material, except that in exceptionally long spans, where the required mechanical strength cannot be obtained with the above materials, galvanized or copper-covered steel... "
Proceedings of the American Electric Railway Engineering Association ... - Halaman 117
oleh American Electric Railway Engineering Association. Convention, American Electric Railway Engineering Association - 1911
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Convention

National Electric Light Association. Convention - 1913
...Spark-Gap Method. 43 Test voltages below 35,000 volts shall be determined ttransformer ratio. MATERIAL 44 Conductors: The conductors shall be of copper, aluminum, or other non-corrodible material, except that in unusually long spans, where the required mechanical strength cannot be obtained with the above materials,...
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Proceedings of the American Electric Railway Association

American Electric Railway Association - 1913
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Annual Report

Arizona Corporation Commission - 1913
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Annual Report, Volume 4

Arizona Corporation Commission - 1915
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Decisions of the Railroad Commission of the State of California, Volume 10

Railroad Commission of the State of California - 1916
...bridges shall be used except where special permission is granted by the Commission. Materials. 12. (a) Conductors. The conductors shall be of copper, aluminum, or other non-corrodible material except where the required mechanical strength can not be obtained with the above materials ; if properly protected...
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Bulletin - American Railway Engineering Association, Volume 16

American Railway Engineering Association - 1914
...42. Test voltages above 35,000 volts shall be determined by the AI EE Standard Spark-Gap Method. 43. Test voltages below 35,000 volts shall be determined by transformer ratio. MATERIAL. Conductors. 44. The conductors shall be of copper, aluminum, or other non-corrodible material, except...
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Electric Railway Handbook: A Reference Book of Practice Data, Formulas and ...

Albert Sutton Richey, William Charles Greenough - 1915 - 832 halaman
...Method. 43. Test voltages below 35,000 volts shall be determined by transformer ratio. 44. Material. Conductors. The conductors shall be of copper, aluminum,...galvanized or copper-covered steel strand may be used. 45. For voltages not exceeding 750 volts, solid or stranded conductors may be used up to and including...
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Electric Railway Handbook: A Reference Book of Practice Data, Formulas and ...

Albert Sutton Richey, William Charles Greenough - 1915 - 832 halaman
...Method. 43. Test voltages below 35,000 volts shall be determined by transformer ratio. 44. Material. Conductors. The conductors shall be of copper, aluminum,...be obtained with the above materials, galvanized or npcr-covered steel strand may be used. OVERHEAD CROSSINGS 651 45. For voltages not exceeding 750 volts,...
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Commission Leaflets: Recent Commission Orders, Rulings and ..., Masalah 35-41

American Telephone and Telegraph Company. Bureau of Commission Research. Legal Dept - 1915
...Spark-Gap Method. 29. Test voltages below 35,000 volts shall be determined by transformer ratio. 30. CONDUCTORS: The conductors shall be of copper, aluminum or other non-corrodible material, or of steel covered with such non-corrodible material. 31. Conductors shall be of such mechanical strength...
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