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Книги Книги 1 - 10 з 34 у ... b. Must not be placed in the immediate vicinity of easily ignitible stuff or....
" ... 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. "
Electric Wiring for the Use of Architects, Underwriters, and the Owners of ... - Сторінка 123
автори: Russell Robb - 1896 - 183 стор.
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...Must be separated at least six inches. (6) Must be provided with an approved waterproof covering. (e) Must be carefully put up. (d) Must be supported by...partitions, timbers, etc., by waterproof, non-combustible, insulating tubes, such as glass or porcelain. 22. Interior Conduits : * (a) Must be continuous from...
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...(a) Must be separated at least six inches. (&) Must be provided with an approved waterproof covering. (c) Must be carefully put up. (d) Must be supported...gases or dust, or to flyings of combustible material. (a) 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 - 128 стор.
...a. Must be separated at least six inches. b. Must be provided with an approved waterproof covering. c. Must be carefully put up. d. Must be supported...partitions, timbers, etc., by waterproof, non.combustible, insulating tubes, such as glass or porcelain. 22. INTERIOR CONDUITS*— a. Must be continuous from...
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Electric Wiring Specifications for Incandescent Lighting

George H. Kimber - 1896 - 59 стор.
...mile after two weeks' submersion in water at 70 deg. Fahr. and three days' submersion in lime water, with a current of 550 volts, after three minutes'...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...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...at least six inches. b. Must be provided with an approved water-proof covering. (See Definitions.) c. Must be carefully put up. d. Must be supported...partitions, timbers, etc., by water-proof, non-combustible, insulating tubes, such as glass or porcelain. 22. INTERIOR CONDUITS* : (See Definitions.) a. Must be...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 213 стор.
...'separated at least six inches. b. Must be provided with an approved waterproof covering. (See Definitions). c. Must be carefully put up. d. Must be supported...partitions, timbers, etc., by waterproof, non-combustible, insulating tubes, such as glass or porcelain. 22. INTERIOR CONDUITS*: — (See Definitions). a. Must...
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The National Electrical Code: An Analysis and Explanation of the ...

Richard Henry Pierce - 1896 - 222 стор.
...at least six inches, b. Must be provided with an approved water-proof covering. (See Definitions.) c. Must be carefully put up. d Must be supported by...through floors, walls, partitions, timbers, etc., by water- proof, non-combustible, insulating tubes, such as glass or porcelain. DEFINITIONS. RULE 21....
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...provided with an approved waterproof covering. (See Definitions). c. Must be carefully put up. celain insulators. No switches or fusible cut-outs will be...partitions, timbers, etc., by waterproof, non-combustible, insulating tubes, such as glass or porcelain. 22. INTERIOR CONDUITS*:—(See • Definitions). a. Must...
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New Catechism of Electricity: A Practical Treatise

Nehemiah Hawkins - 1896 - 541 стор.
...at least six inches. b. Must be provided with an approved water-proof covering. (See Definitions.) c. Must be carefully put up. d. Must be supported by glass or porcelain insulators. Nc switches or fusible cut-outs will be allowed where exposed to inflammable gases or dust, or to flyings...
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Transactions, Том 14

American Institute of Electrical Engineers - 1897
...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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