 | American Institute of Electrical Engineers - 1897 - 708 стор.
...at least ten inches apart, and, when possible, should be run singly on separate timbers or studding. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every four and one-half feet. If the wires are liable to be disturbed, the distance between supports... | |
 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...at least ten inches apart, and, when possible, should be run singly on separate timbers or studding. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every four and one-half feet. If the wires are liable to be disturbed, the distance between supports... | |
 | Horatio Alvah Foster - 1901 - 1018 стор.
...at least ten inches apart, and, when possible, should be run singly on separate timbers or studding. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every four and one-half feet. 11 the wires are liable to be disturbed, the distance between supports... | |
 | George Velten Steeb - 1902 - 230 стор.
...non-combustible, non-absorptive insulators which separate the wire at least I inch from the surface wired over. Rigid supporting requires, under ordinary conditions,...where wiring along flat surfaces, supports at least every 45/2 feet. If the wires arc liable to be disturbed the distance between supports should be shortened.... | |
 | 1902 - 742 стор.
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every 4} (eel. If the wires are liable to be disturbed, tne distance between supports should be shortened.... | |
 | 1906 - 582 стор.
...ordinary conditions, where wiring over flat surfaces, supports at least every 4] feet. If the wires are liable to be disturbed, the distance between supports...buildings of mill construction, mains of No. 8 B. & S. gauge wire or over, where not liable to be disturbed, may be separated about 6 inches, and run from... | |
 | 1906 - 544 стор.
...table: Distance From Surface Inch Distance Between Wires Inches Voltage o to 300 i a* 300 to 500 I 4 Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every 4* feet. If the wires are liable to be disturbed, the distance between supports should be shortened.... | |
 | Charles Edwin Knox - 1907 - 242 стор.
...where wiring along flat surfaces, supports at least every four and one half feet. If the wires are liable to be disturbed, the distance between supports...buildings of mill construction, mains of No. 8 B. & S. gage wire or over, where not liable to be disturbed, may be separated about six inches, and run from... | |
 | Charles Edwin Knox - 1907 - 244 стор.
...which they may pass by non-combustible, non-absorptive insulating tubes, such as glass or porcelain. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least every four and one half feet. If the wires are liable to be disturbed, the distance between supports... | |
 | International Correspondence Schools - 1908 - 754 стор.
...wires must be kept apart at least 2j inches for voltages up to 300 and 4 inches for higher voltages. between supports should be shortened. In buildings of mill construction, mains of No. 8 B. & S. gauge wire or over, where not liable to be disturbed, may be separated about 6 inches, and run from... | |
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If the wires are unusually liable to be disturbed, the distance between supports should be shortened. In buildings of mill construction, mains of No. 
