 | American Society of Mechanical Engineers - 1898 - 1122 стор.
...INSULATION — a. ftubber Covered. — The insulating covering must be solid, at least three-sixty-fourths of an inch in thickness and covered with a substantial...megohm per mile after two weeks' submersion in water at seventy degrees Fahrenheit and three day's submersion in lime water, and after three minutes' electrification... | |
 | Arthur Vaughan Abbott - 1904 - 754 стор.
...inch thick, and covered with a substantial braid. Must not readily carry fire, must show an insulation of one megohm per mile after two weeks' submersion in water at seventy degrees Fahrenheit, and three days' submersion in lime-water, and after three minutes' electrification... | |
 | Kempster Blanchard Miller - 1905 - 912 стор.
...waterproof and insure a permanently tough and lasting form of insulation. The insulation must show a resistance of one megohm per mile after two weeks'...Fahrenheit, and three days' submersion in lime water, and after three minutes' electrification at 550 volts. The thickness of the rubber insulation shall... | |
 | Henry Charles Horstmann, Victor Hugo Tousley - 1908 - 352 стор.
...resistance between conductors, and between either conductor and the ground, of at least fifty megohms per mile after two weeks' submersion In water at 70 degrees Fahrenheit (21 degrees Centigrade), and be protected by a slow-burning, tough-braided outer covering. Where exposed... | |
 | Institution of Civil Engineers (Great Britain) - 1901 - 506 стор.
...conduit permanently and effectually grounded. " The insulating covering must be solid, at least J^ inch in thickness and covered with a substantial braid....carry fire, must show an insulating resistance of 1 megohm per mile after- 2 weeks' submersion in water at a temperature of 70°, and 3 days' submersion... | |
 | 1902 - 1130 стор.
...covered with a substantial braid well waxed, must not readily carry (ire, and must show an insulation resistance of one megohm per mile, after two weeks submersion in water at 70 degrees F., and three days submersion in lime water, and after three minutes electrification with 600 volts.... | |
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The insulating covering of the wire to be approved under this section must be solid, at least 3 -64th of an inch in thickness, and covered with a substantial braid. It must not readily carry fire, must show an insulating resistance of one megohm per mile... 
