It is at this time when the quality and reliability of electrical supply is critical in order to support a high networked information society. Two substantial changes therein information oriented societies, which are strongly dependant upon the reliability of electrical equipment. One is global warming, with worldwide effect of increasingly abnormal weather conditions, such as concentrated heavy rain and severe thunderstorms. With the changes in weather patterns, there will be an inevitable increasing incidents of lightning strikes, which are the archenemy of electrical installations.
President Osamu Yoshida
Established May 11, 1946