 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 2001894Повний перегляд - Докладніше про цю книгу
 | 1891 - 680 стор.
...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.... | |
 | National Electric Light Association. Convention - 1892 - 458 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. Always in plain sight, never covered, except in special cases, where an armored tube may be necessary.... | |
 | Earle Abbott Merrill - 1892 - 188 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.... | |
 | Frank Eugene Kidder - 1892 - 1058 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)... | |
 | Frank Eugene Kidder - 1892 - 1032 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... | |
 | Charles M. Davis - 1893 - 162 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.... | |
 | Arthur Vaughan Abbott - 1895 - 646 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... | |
 | Russell Robb - 1896 - 208 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... | |
 | Earle Abbott Merrilol - 1896 - 232 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... | |
 | Earle Abbott Merrill - 1896 - 222 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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