 | Frank Eugene Kidder - 1892 - 1032 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. (e) Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Charles M. Davis - 1893 - 162 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut.outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. e. Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Nehemiah Hawkins - 1896 - 568 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. e. Must be protected when passing through floors, walls, partitions, timbers, etc., by water-proof,... | |
 | George H. Kimber - 1896 - 80 páginas
...supported by glass or porcelain insulators. No switches, key sockets or fusible cut-outs will be allowed where exposed to inflammable 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... | |
 | Earle Abbott Merrilol - 1896 - 232 páginas
...Definitions). c. Must be carefully put up. celain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. e. Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Earle Abbott Merrill - 1896 - 232 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. e. Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Russell Robb - 1896 - 206 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material. e. Must be protected when passing through floors, walls, partitions, timbers, etc., by waterproof,... | |
 | Richard Henry Pierce - 1896 - 234 páginas
...Must be supported by glass or porcelain insulators. No switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings of combustible material, e. Must be protected when passing through floors, walls, partitions, timbers, etc., by water- proof,... | |
 | American Institute of Electrical Engineers - 1897 - 710 páginas
...the 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...material. c. Must, when exposed to dampness, either be inclosed in a waterproof box or mounted on porcelain knobs. CONSTANT-CURRENT SYSTEMS. Principally Series... | |
 | American Society of Mechanical Engineers - 1898 - 1122 páginas
...the 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...material. c. Must, when exposed to dampness, either be inclosed in a waterproof box or mounted on porcelain knobs. CONSTANT-CURRENT SYSTEMS. PRINCIPALLY SERIES... | |
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... 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. 
