 | Henry Stanton Tiffany - 1887 - 466 стор.
...lamp by which it will be thrown out of circuit before the arc approaches any such dangerous extent. Companies furnishing electricity from central stations must enter into an agreement with the Local Board, binding themselves to test their lines for ground connections at least once every day... | |
 | 1883 - 720 стор.
...lamp, by which it will be thrown out of circuit before the arc approaches any euch dangerous extent. Companies furnishing electricity from central stations...Fire Underwriters, binding themselves to test their linos for ground connections at least 'mti every day (and preferably three times per day), and to report... | |
 | 1884 - 792 стор.
...lamp by which it will be thrown out of circuit before the arc approaches any sudi dangerous extent. Companies furnishing electricity from central stations...for ground connections at least once every day (and preferable three times per day) , and to report the result of such tests to the Board weekly. Means... | |
 | Earle Abbott Merrill - 1892 - 188 стор.
...lamps. 49. Low POTENTIAL CIRCUITS OR WIRES are such as do not carry currents of more than 250 volts. 50. Companies furnishing electricity from central stations...report the result of such tests to the Board weekly. EULES AND REQUIREMENTS OF THE NEW ENGLAND INSURANCE EXCHANGE FOR ELECTRIC LIGHTING. Adopted September... | |
 | Nehemiah Hawkins - 1896 - 568 стор.
...of wires, must be strictly observed. NATIONAL BOARD FIRE UNDERWRITERS. CENTRAL STATIONS— TESTING : Companies furnishing electricity from Central Stations...every day (and preferably three times per day'', and report the result of such test to the Board weekly. ELECTRIC LIGHTS AND MOTORS IN GENERAL STORAGE STORES... | |
 | Nehemiah Hawkins - 1896 - 570 стор.
...wires, must be strictly observed. NATIONAL BOARD FIRE UNDERWRITERS. CENTRAL STATIONS — TESTING : Companies furnishing electricity from Central Stations...Underwriters, binding themselves to test their lines fof ground connections at least once every day (and preferably three times per day), and report the... | |
 | Evansville (Ind.) - 1907 - 588 стор.
...arc approaches any such dangerous extent. Companies furnishing electricity from central stations must test their lines for ground connections at least once every day, and report the result of such tests weekly to the Common Council. Means by which those in charge of the... | |
 | 1882 - 586 стор.
...lamp by which it will be thrown out of circuit before the arc approaches any such dangerous extent. Companies furnishing electricity from central stations...for ground connections at least once every day (and preferable three times j>er day), and to report the result of such tests to the Board weekly. Means... | |
 | 1883 - 724 стор.
...lamp, by which it will be thrown out of circuit before the arc approaches any such dangerous extent. Companies furnishing electricity from central stations...to test their lines for ground connections at least UK* every day (and preferably three times per day), and to report the result of such tests to the Board... | |
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... dangerous extent. Companies furnishing electricity from central stations must enter into an agreement with the New York Board of Fire Underwriters, binding themselves to test their lines for ground connections at least once every day (and preferable... 