 | Russell Robb - 1896 - 208 стор.
...length of time the current that will flow through them. CLASS B. HIGH-POTENTIAL SYSTEMS. OVEK 300 VOLTS. Any circuit attached to any machine, or combination of machines, which develops over 300 volts difference of potential between any two wires, shall be considered as a high-potential... | |
 | American Institute of Electrical Engineers - 1897 - 710 стор.
...writing from the Inspection Department having jurisdiction. HIGH-POTENTIAL SYSTEMS. 300 TO 3,000 VOLTS. Any circuit attached to any machine or combination...difference of potential, between any two wires, of over joo volts and less than 3,000 volts, shall be consider, d as a hi h potential circuit, and as coming... | |
 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...maker's name and the normal capacity in volts and amperes. LOW-POTENTIAL SYSTEMS. 300 VOLTS OR LESS. Any circuit attached to any machine, or combination...difference of potential, between any two wires, of over ten volts and less than 300 volts, shall be considered as a low-potential circuit, and as coming under... | |
 | Francis Bacon Crocker - 1901 - 514 стор.
...dynamo be used for both purposes. HIGH-POTENTIAL SYSTEMS. 550 TO 3,500 VOLTS. Any circuit at t ached to any machine, or combination of machines, -which...difference of potential, between any two wires, of over 300 volts and less than 3,500 volts, shall be considered as a high-potential circuit, and as coining... | |
 | Horatio Alvah Foster - 1901 - 1018 стор.
...name and the normal capacity in volts and amperes. JLOW rOTEWTIAI, SYSTEMS. 550 VOLTS OR LESS. Jny circuit attached to any machine, or combination of...which develops a difference of potential, between any tied wires, of over t<-n volts and less than 550 rolls, shall be considered as a low-potential circuit,... | |
 | 1902 - 738 стор.
...For pressures over 550 volts, the following rules apply : HIGH-POTENTIAL SYSTEMS. 550 TO 3,500 VOLTS. Any circuit attached to any machine or combination...and less than 3,500 volts shall be considered as a highpotential circuit and as coming under that class, unless an approved transforming device is used... | |
 | 1902 - 742 стор.
...For pressures over 550 volts, the following rules apply: HIGH-POTENTIAL SYSTEMS. 550 TO 3,500 VOLTS. Any circuit attached to any machine or combination...between any two wires of over 550 volts and less than 8,500 volts shall be consider cd as a highpotential circuit and as coining under that class, unless... | |
 | Francis Bacon Crocker - 1904 - 506 стор.
...point of view. If we look upon the question in its relation to fire risk or insurance, we find that ' ' any circuit, attached to any machine or combination...difference of potential, between any two wires, of over'10 volts and less than 550 volts shall be considered as a low-potential circuit." This statement... | |
 | Francis Bacon Crocker - 1904 - 530 стор.
...for both purposes. HIGH-POTENTIAL SYSTEMS. 5o0 TO 3,500 VOLTS. Any circuit attached to any niachine, or combination of machines, which develops a difference of potential, between any two wires, of over 3O0 volts and less than 3,500 volts, shall be considered as a high-potential circuit, and as com ing... | |
 | Francis Bacon Crocker - 1904 - 506 стор.
...low-potential systems. An extra-high-potential system is defined by the National Electrical Code to be one ' ' which develops a difference of potential, between any two wires, of over 3500 volts. " It is not allowable to bring it into buildings except power or sub-stations, unless the... | |
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... a highpotential circuit and as coming under that class, unless an approved transforming device is used which cuts the difference of potential down to 550 volts or less. 
