 | 1891 - 680 стор.
...Subject to mechanical injury by saws, chisels, or nuk 6. Depended upon for insulation. The conductors a covered with moisture-proof material. The object of a tube or conduit is to facilitate tha in extraction of the conductors, to protect them from : injury, and, as far as possible, from moisture.... | |
 | National Electric Light Association. Convention - 1892 - 458 стор.
...current of more than io amperes is expected. 6. Depended upon for insulation. The conductors should be covered with moisture-proof material. The object...or similar material, but by cotton or other readily carbonizable substance. Conductors passing through walls or ceilings must be encased in a suitable... | |
 | W. J. Jenks - 1894 - 110 стор.
...present rules of the underwriters set forth that the "object of a tube or conduit" for interior wiring "is to facilitate the insertion or extraction of the...mechanical injury, and as far as possible from moisture." It is a serious question for the insurance inspector to determine whether there is any method now practiced... | |
 | Richard Henry Pierce - 1896 - 234 стор.
...g. Conduits must extend at least one inch beyond the finished surface of walls or ceilings until the *The object of a tube or conduit is to facilitate...mechanical injury, and, as far as possible from moisture. Tubes or conduits are to be considered merely as raceways, and are not to be relied on for insulation... | |
 | National Electric Light Association. Convention - 1896 - 486 стор.
...conveying water or fluid. According to the standard rules (National Board of Fire Underwriters, 1896,) the object of a tube or conduit is to facilitate the...mechanical injury, and, as far as possible, from moisture. Tubes or conduits are to be considered merely as raceways, and are not to be relied on for insulation... | |
 | Russell Robb - 1896 - 208 стор.
...given on page 80 is not necessarily correct for all these special conditions. 22. Interior Conduits: [The object of a tube or conduit is to facilitate...conductors, to protect them from mechanical injury, and, so far as • possible, from moisture. Tubes or conduits are to be considered merely a« raceways,... | |
 | George W. Kramer - 1897 - 280 стор.
...installation, a tube or conduit is used to facilitate the insertion or extraction of conductors and to protect them from mechanical injury and as far as possible from moisture, and are to be considered as conduits or raceways only, and not relied on for insulation. All conduits... | |
 | American Institute of Electrical Engineers - 1898 - 716 стор.
...of the fastenings or motion of the fixture. 25. Interior Conduits{See also Nos. 34 n to a, and 41.) The object of a tube or conduit is to facilitate the...mechanical injury and as far as possible, from moisture. Tubes or conduits are to be considered merely as raceways, and are not to be relied upon for insulation... | |
 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...of the fastenings or motion the fixture. ¿. INTERIOR CoNDUITs(&e aLso IQ'o8. 24 it to q, and 41.) The object of a tube or conduit is to facilitate the Insertion or extraction of o conductors, to prevent them from mechanical injury, and, as far as possible, ¿m moisture. Tubes... | |
 | Institution of Civil Engineers (Great Britain) - 1901 - 510 стор.
...of different circuits must not be drawn in the same conduit, unless special permission is granted. " The object of a tube or conduit is to facilitate the...mechanical injury, and, as far as possible, from moisture. Tubes or conduits are to be considered merely as raceways, and are not to be relied upon for insulation... | |
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be covered with moisture-proof material. The object of a tube or conduit is to facilitate the insertion or extraction of the conductors, to protect them from mechanical injury, and as far as possible, from moisture. Twin tube conductors must not be separated... 
