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" 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. "
Medical Electricity, Röntgen Rays and Radium: With a Practical Chapter on ... - Pagina 160
di Sinclair Tousey - 1915 - 1219 pagine
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 1032 pagine
...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,...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 162 pagine
...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,...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 568 pagine
...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,...
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Electric Wiring Specifications for Incandescent Lighting

George H. Kimber - 1896 - 80 pagine
...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...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 234 pagine
...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,...
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 232 pagine
...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,...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 232 pagine
...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,...
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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 206 pagine
...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,...
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Transactions of the American Institute of Electrical Engineers

American Institute of Electrical Engineers - 1897 - 710 pagine
...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 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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Transactions of the American Society of Mechanical Engineers, Volume 19

American Society of Mechanical Engineers - 1898 - 1120 pagine
...be protected by the cut-out and disconnected by the operation of the switch or circuit breaker. I. Must not be placed in the immediate vicinity of easily...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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