 | American Institute of Electrical Engineers - 1897 - 710 стор.
...kept apart at least four inches for voltages up to 750 and at least eight inches for voltages over 750 Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least about every four and one-half feet. If the wires are unusually liable to be disturbed, the distance... | |
 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...apart at least four inches for voltages up to 750 and at least eight inches for voltages over 750. Rigid supporting requires under ordinary conditions,...where wiring along flat surfaces, supports at least about every four and one-half feet. If the wires are unusually liable to be disturbed, the distance... | |
 | Francis Bacon Crocker - 1901 - 528 стор.
...at least ten inches apart, and, when possible, should be run singly on separate timbers or studding. Rigid supporting requires under ordinary conditions,...liable to be disturbed, the distance between supports should be shortened . s. When, from the nature of the case, it is impossible to place concealed wiring... | |
 | 1911 - 1204 стор.
...the wood, are used. The wires should be kept at least five inches apart. Wires should be supported at least every four and one-half feet. If the wires are liable to be disturbed this distance should be shortened. Wherever the wires must come together, as at outlets for lights... | |
 | Francis Bacon Crocker - 1901 - 514 стор.
...inches. 225"550 I 4 " Rigid supporting requires under ordinary conditions, where wiring along fiat surfaces, supports at least every four and one-half feet. If the wires are liable lo be disturbed, the distance between supports should be shortened. In buildings of mill construction,... | |
 | Horatio Alvah Foster - 1901 - 1018 стор.
...at least four inches for voltages up to 750 and at least eight inches for voltages over 750. Kigid supporting requires under ordinary conditions, where wiring along flat surfaces, supports at least about every tour and one-half feet. If tlie wires are unusually liable to be disturbed, the distance... | |
 | Francis Bacon Crocker - 1901 - 528 стор.
...OLTAGK. DISTANCH FROM SURFACE, UISTANCK BETWEEN WIRES. 0 to 225 J inch. 2J inches. 225 " 650 1 " 4 Rigid supporting requires under ordinary conditions, where wiring along flat surfaces, supports a( least every four and one-half feet. If the wires are liable to be disturbed, the distance between... | |
 | 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,...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.... | |
 | 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,...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 - 738 стор.
...supporting requires under ordinary conditions, where wiring over flat surfaces, supports at least every 4i feet. If the wires are liable to be disturbed, the distance between supports should be shortened. In buildings of mill construction, mains of No. 8 B. & S. wire or over, where... | |
| |
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 should be shortened. In buildings of mill construction,... 
