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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Experimental Measurements Of High Temperature Objects In Contact With An Electric Arc
 Šimek, David
The paper is focused on the measurements of high temperatures related to electric low voltage apparatuses switching off process. An optical emission spectroscopy was used for these measurements, because the optical emission spectroscopy is one of best methods for obtaining a temperature of high temperature objects. Experimental measurement of radiation spectra of electrodes among which an arc was burning is presented. Electrodes was made of carbon with stabilisation core with potassium and sodium admixture. Radiation spectrum of electrodes was close to the black body radiation spectrum. The problems connected with the measurements are discussed. The main part of the paper deals with a calculation of the electrode temperature using Planck function.
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Measurement of an Electric Arc Spectra
 Šimek, D.
Article is focused on electric arc spectroscopy diagnostics related to electric low voltage apparatuses. The first attempts of spectroscopy measurements are dealt with. An example of radiation spectra of the electric arc burning between copper electrodes is presented. The problems connected with the measurements are discussed.
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