Abstract
In our previous report, it was first clarified that the radio noise was considerably generated during arc welding, arc cutting and oxy-arc cutting. Similar measurements of radio noise were carried out on arc welding machine with high frequency, the results of which are described here. The work performed are summarized as follows:
(1). Intense interfering radiation is produced at a wide frequency range during inert gas arc welding by airc welding machine with high freauencv venerated by spark gap oscillater.
(2). Field intensity of the radiation is almost inversely proportional to the square of the distance frome the noise source.
(3). Intense interfering terminal voltage is similarly produced in the distribution line and it is scarcely reduced by the use of a condenser.
