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" VOLTS. Any circuit attached to any machine or combination of machines which develops a difference of potential, between any two wires, of over... "
Electric Lighting Specifications - Сторінка 161
автори: Earle Abbott Merrilol - 1896 - 213 стор.
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The Electrical Code ...: Comprising the Rules and Regulations for the ...

1913 - 242 стор.
...any two wires, of over 3,500 volts, shall be considered as an extra high-potential circuit, and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 3,500 volts or less. 47. Primary Wires. a. Must not be brought into or over buildings, except power...
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Electric Wiring

Joseph Gerald Branch - 1913 - 316 стор.
...of over 550 volts and less than 3,500 volts, shall be considered as a high-potential circuit, and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 550 volts or less. For 550 volt motor equipments a margin of ten per cent, above the 550 "volt limit...
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Cyclopedia of Applied Electricity: A General Reference Work on Direct ..., Том 1

1913 - 460 стор.
...of over 550 volts and less than 3,500 volts, shall be considered as a high-potential circuit and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 550 volts or less. Similarly if the difference of potential between any two wires is over 3,500 volts...
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Building, Plumbing, Gas and Electrical Laws of the City of Dallas, Texas ...

Dallas (Tex.). - 1914 - 266 стор.
...of over 550 volts and less than 3500 volts, shall be considered as a high potential circuit and as coming under that class, unless an approved transforming...used which cuts the difference of potential down to 550 volts or less. (a) Must be always in plain sight, and never encased except as provided for in Section...
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Wiring for Light and Power: A Detailed and Fully Illustrated Commentary on ...

Terrell Croft - 1917 - 446 стор.
...and less than 3,500 volts, shall be considered as a high-potential circuit, and as coming under this class, unless an approved transforming device is used, which cuts the difference of potential down to 550 volts or less. For 550 volt motor equipments a margin of ten per cent above the 550 volt limit...
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Standard Wiring for Electric Light and Power as Adopted by the Fire ...

Harry Cooke Cushing - 1917 - 374 стор.
...volts and less than 3,500 volts, is considered as a highpotential circuit, and as coming under this class, unless an approved transforming device is used, which cuts the difference of potential down to 550 volts or less. For 550 volt motor equipments a margin of ten per cent. above the 550 volt limit...
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Carpentry and Contracting: A Practical Reference Work on Carpentry ..., Том 3

1919 - 444 стор.
...of over 550 volts and less than 3,500 volts, shall be considered as a high-potential circuit and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 550 volts or less. Similarly if the difference of potential between any two wires is over 3,500 volts...
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Proceedings of the Board of Aldermen of the City of New York, Том 1

New York (N.Y.). Board of Aldermen - 1920 - 904 стор.
...between any 2 wires, of over 3,500 volts, shall be considered as an extra-high potential circuit, and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 3,500 volts or less; 7. High-potential system, any circuit attached to any machine or combination of...
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Wiring for Light and Power: A Detailed and Fully Illustrated Commentary on ...

Terrell Croft - 1920 - 488 стор.
...over 3,500 volts, shall be considered as an extra-high-poteniial circuit, and as coming under this class, unless an approved transforming device is used, which cuts the difference of potential down to 3,500 volts or less. 47. PRIMARY WIRES. 47. Tf7. PRIMARY WIRES. Must not be brought into or over buildings,...
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New Code of Ordinances of the City of New York: Including the Sanitary Code ...

New York (N.Y.) - 1922 - 636 стор.
...any two wires, of over 3,500 volts, shall be considered as an extra-high potential circuit, and as coming under that class, unless an approved transforming...used, which cuts the difference of potential down to 3,500 volts or less. 7. High-potential system. Any circuit attached to any machine or combination of...
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