 | Joseph Gerald Branch - 1913 - 316 стор.
...prevent them from moving along the wire. f. Must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
 | International Correspondence Schools - 1913 - 654 стор.
...to prevent the tube sliding along. /. Wires must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
 | Sinclair Tousey - 1915 - 1418 стор.
...placed as nearly above the pipe as possible. (/) Must be so placed in wet places that an air-space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
 | Little Rock (Ark.). - 1915 - 770 стор.
...nonconductor, creating a permanent separation, (f) Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they can not cotne in contact with the pipe accidentally. Wires should be run over, rather than under, pipes... | |
 | Harry Cooke Cushing - 1915 - 332 стор.
...arranged so that an air space will be left between conductors and pipes in crossing, and the former should be run in such a way that they cannot come in contact with the pipe accidentally. Where one wire crosses another wire the best and usual means of separating them is by a porcelain tube... | |
 | Walter Benedict Weber - 1916 - 164 стор.
...some continuous and firmly-fixed non-conductor. Must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...cannot come in contact with the pipe accidentally. The installation of electrical conductors in wood molding, or on insulators in elevator shafts will... | |
 | Terrell Croft - 1917 - 446 стор.
...allowed by special permission. 16/. If/. WIRES. Must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
 | Harry Cooke Cushing - 1917 - 374 стор.
...arranged so that an air space will be left between conductors and pipes in crossing, and the former should be run in such a way that they cannot come in contact with the pipe accidentally. Where one wire crosses another wire the best and usual means of separating them is by a porcelain tube... | |
 | Terrell Croft - 1920 - 488 стор.
...allowed by special permission. 16/. 17. WIRES. Must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
 | New York (N.Y.). Board of Aldermen - 1920 - 904 стор.
...necessary, be allowed by special permission. f. Wires must be so placed in wet places that an air space will be left between conductors and pipes in crossing,...with the pipe accidentally. Wires should be run over, rather than under, pipes upon which moisture is likely to gather or which, by leaking, might cause... | |
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Must be so placed in wet places that an air space will be left between conductors and pipes in crossing, and the former must be run in such a way that they cannot come in contact with the pipe accidentally. Wires should be run over, rather than under,... 
