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" The switch must be so constructed that it shall be automatic in its action, not stopping between points when started, and prevent an arc between the points under all circumstances ; it must indicate on inspection whether the current be " on " or  "
Electrical Engineer - Сторінка 204
1894
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The Electrical Review, Том 8

1891
...doublecontact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...moisture and easy of access to police or firemen. 3. Always in plain sight, never covered, except in special cases, where an armoured tube may be necessary....
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Convention

National Electric Light Association. Convention - 1892
...contact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...moisture, and easy of access to police or firemen. 3. Always in plain sight, never covered, except in special cases, where an armored tube may be necessary....
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1892 - 176 стор.
...double contact switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...moisture, and easy -of access to police or firemen. 3. Always in plain sight, never covered, except in special cases, where an armored tube may be necessary....
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...contact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...whether the current be "on" or "off," and be mounted in a lion-combustible case, and kept free from moisture and easy of access to police or firemen. (c)...
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The Architect's and Builder's Pocket-book of Mensuration, Geometry ...

Frank Eugene Kidder - 1892 - 911 стор.
...indicate on inspection whether the current be "on" or "off," and be mounted in a non-combustible case, and kept free from moisture and easy of access to police or firemen. (c) Must be always in plain sight, and never encased, except when required by the inspector. (d) Must...
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Standard Tables for Electric Wiremen: With Instructions for Wiremen and ...

Charles M. Davis - 1893 - 128 стор.
...contact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...whether the current be "on" or "off," and be mounted in a non.combustible case, and kept free from moisture and easy of access to police or firemen. c....
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The Electrical Transmission of Energy: A Manual for the Design of Electrical ...

Arthur Vaughan Abbott - 1895 - 586 стор.
...contact service switch, which will effectually close the main circuit, and disconnect the interior wires when it is turned " off." The switch must be so constructed...moisture and easy of access to police or firemen. 3. Must be always in plain sight, never covered, except in special cases, where an armored tube may...
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Electric Wiring for the Use of Architects, Underwriters, and the Owners of ...

Russell Robb - 1896 - 183 стор.
...contact service-switch, which will effectually close the main circuit and disconnect the interior wires when it is turned " off." The switch must be so constructed...whether the current be " on " or " off," and be mounted in a non-combustible case, and kept free from moisture, and easy of access to police or firemen. So-called...
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Electric Lighting Specifications

Earle Abbott Merrilol - 1896 - 213 стор.
...contact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...whether the current be " on " or " off," and be mounted in a noncombustible case, and kept free from moisture, and easy of access to police or firemen. So-called...
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Electric Lighting Specifications for the Use of Engineers and Architects

Earle Abbott Merrill - 1896 - 213 стор.
...contact service switch, which will effectually close the main circuit and disconnect the interior wires when it is turned "off." The switch must be so constructed...whether the current be " on " or " off," and be mounted in a noncombustible case, and kept free from moisture, and easy of access to police or firemen. So-called...
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