 | American Institute of Electrical Engineers - Electric engineering - 1903 - 594 pages
...to sustain 242 BLACKWELL: TESTING OF INSULATORS. [March 27 •when the complete insulator is tested. If it is to be tested for 100,000 volts and is made...tested with 70,000 volts. The object of this is to bave the we'ak parts rejected before they are assembled. A fair puncture test for an insulator is twice... | |
 | Electric power distribution - 1905 - 488 pages
...Blackwell's reference to testing a double insulator — an insulator primarily of two parts — Broken 10J* pins (Stem.) Total Length, 15J" Showing How Pins Split....that is, as I understand the porcelain people, in tne baking or vitrifying of the two parts it is not desirable to take the entire shrinkage out on the... | |
 | International Correspondence Schools - Electricity - 1905 - 760 pages
...to withstand a pressure greater than it will have to sustain when the complete insulator is tested. If it is to be tested for 100,000 volts and is made...the weak parts rejected before they are assembled. A fair puncture test for an insulator is twice the potential for which it is to be employed, applied... | |
 | Electric power distribution - 1905 - 488 pages
...tested. If it is to be tested for 100,000 volts and is made in two parts, each part might, for in stance, be tested with 70,000 volts. The object of this is...the weak parts rejected before they are assembled. A fair puncture test for an insulator is twice the potential for which it is to be employed, applied... | |
 | Electric power distribution - 1905 - 484 pages
...to withstand a pressure greater than it will have to sustain 'when the complete insulator is tested. If it is to be tested for 100,000 volts and is made in two parts, each part might, for ir. stance, be tested with 70,000 volts. The object of this is to have the weak parts rejected before... | |
 | Agriculture - 1906 - 700 pages
...to withstand a pressure greater than it will have to sustain when the complete insulator is tested. If it is to be tested for 100,000 volts and is made...the weak parts rejected before they are assembled. A fair puncture test for an insulator is twice the potential for which it is to be employed, applied... | |
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If an insulator is built up of several parts, each part should be able to withstand a pressure greater than it will have to sustain when the complete insulator is tested. If it is to be tested for 100,000 volts and is made in two parts, each part might,... 