 | Frank Eugene Kidder - 1892 - 1032 стор.
...covering. (e) Must be carefully put up. (d) Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where...such as glass or porcelain. 22. Interior Conduits : * (a) Must be continuous from one junction box to another, or to fixtures, and must be of material... | |
 | Frank Eugene Kidder - 1892 - 1058 стор.
...covering. (c) Must be carefully put up. (d) Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where...gases or dust, or to flyings of combustible material. (a) Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Charles M. Davis - 1893 - 162 стор.
...waterproof covering. c. Must be carefully put up. d. Must be supported by glass or porcelain insulators. No switches or fusible cut.outs will be allowed where...such as glass or porcelain. 22. INTERIOR CONDUITS*— a. Must be continuous from one junc* The object of a tube or conduit is to facilitate the insertion... | |
 | Earle Abbott Merrilol - 1896 - 232 стор.
...approved waterproof covering. (See Definitions). c. Must be carefully put up. celain insulators. No switches or fusible cut-outs will be allowed where...insulating tubes, such as glass or porcelain. 22. INTERIOR CONDUITS*:—(See • Definitions). a. Must be continuous from one junction box to another, or to fixtures,... | |
 | Russell Robb - 1896 - 206 стор.
...consideration.] c. Must be carefully put up. d. Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where...partitions, timbers, etc., by waterproof, non-combustible, insulating-tubes, such as glass or porcelain. The requirements stated under Rule 21 are, it will be... | |
 | Richard Henry Pierce - 1896 - 234 стор.
...Definitions.) c. Must be carefully put up. d Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where...through floors, walls, partitions, timbers, etc., by water- proof, non-combustible, insulating tubes, such as glass or porcelain. DEFINITIONS. RULE 21.... | |
 | George H. Kimber - 1896 - 80 стор.
...be carefully put up. d. Must be supported by glass or porcelain insulators. No switches, key sockets or fusible cut-outs will be allowed where exposed...gases or dust, or to flyings of combustible material. In damp places switches and cut-out blocks must be mounted on porcelain knobs. e. Must be protected... | |
 | American Institute of Electrical Engineers - 1897 - 710 стор.
...switch or circuit breaker. b. Must not be placed in the immediate vicinity of easily ignitable stuff or where exposed to inflammable gases or dust or to flyings of combustible material. c. Must, when exposed to dampness, either be inclosed in a waterproof box or mounted on porcelain knobs.... | |
 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...switch or circuit breaker. I. Must not be placed in the immediate vicinity of easily ignitible stuff or where exposed to inflammable gases or dust or to flyings of combustible material. c. Must, when exposed to dampness, either be inclosed in a waterproof box or mounted on porcelain knobs.... | |
 | Francis Bacon Crocker - 1901 - 514 стор.
...switch or circuit-breaker. b. Must not be placed in the immediate vicinity of easily ignitible stuff or where exposed to inflammable gases or dust or to flyings of combustible material. c. Must, when exposed to dampness, either be inclosed in a waterproof box or mounted on porcelain knobs.... | |
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... the wires ; that is, in a two-wire system the two wires, and in a three-wire system the three wires, must be protected by the cut-out and disconnected by the operation of the switch or circuit breaker. 
