抄録
In order to know the effect of the arc power on the radiation power, a trial simulation of the radiation power emitted from high current wall-stabilized arcs has been carried out by using the relation E∝Im, where E is voltage gradient and I is arc current. Radiation powerΦ can be estimated to be proportional to In, where n=2(1-m), and also to PD, where P is input electric power and D=2(1-m)/(1+m):Φ∝I2∝P2 in the mlddle current range from 10 to 100 A because of m=0, and Φ∝I1.2∝P0.86 in the high current range over 1, 000 A because of m=4/10. Similar relations hold in other different gases such as Ar, N2, SF6 etc. at 0.1MPa. The estimated values of n and D almost agree with the experimental ones. Finally, it was clarified that these exponents n and D are closely related to the high temperature transport properties of gases.
