History of Science and Engineering Annotation << Back Formation of VEI Instead of the preface to the articles of the leaders of the middle of the XX century I.V. Ovcharov The elucidating commentary to the unique historical material is given. They are represented in the original form 2 articles of the prominent leaders of VEI of 30–40 years of XX century. It is added the information, which for the different reasons could not enter into these articles, but it is of undoubted interest. Key words: Electrical engineering; defense technology; electrical insulating materials. Pp. 4-5