The article is devoted to the features of the system grounding and device of electrical networks (EN) and electrical installations (EI) in the continental zone of the Arctic. The traditional grounding devices providing grounding of EN and EI in the Arctic regions are ineffective or their device is impossible. These conclusions are defined by parameters of climate and properties of soil in the considered zone. The most important parameters of climate are a wide year temperature difference and big depths of soil frost penetration caused by it. Soil has very high electrical resistance and has the big hardness and density. During the cold period which has big duration (up to nine and more months) there is a soil frost penetration on tens of meters, forming areas of so-called permafrost. The conditions listed above make very difficult or impossible the use of traditional ways of the protective grounding device according to regulatory requirements. Methods of researches for the Arctic zone soil such as a method of a trial electrode and vertical electric sounding are described. Their advantages, shortcomings and application conditions are given. Special ways of the device of protective grounding such as natural grounding conductors, chemical, deep laying, portable, with application of a way of warming of a surface and zone around grounding conductors, ways of special processing of soil are offered. Conditions of their application and feature of the device are given. Each of the offered ways has restrictions of field of use. So, for example, natural grounding conductors are possible in the presence of reinforced concrete foundations. Justifications for using certain materials for grounding conductors are given in the work. Coverings are suitable for soil conditions of the Arctic copper or zinc. The usage of copperplated steel grounding conductors is possible.

The widespread use of fuel oil stimulates the development of fuel additives to improve its technological properties. In this work, the parameters of the explosiveness of the technology for obtaining an additive based on the use of industrial alcohols are estimated. The schemes of development of typical scenarios of accidents have been developed, zones of destruction of buildings and structures and zones of damage by thermal radiation from the flame boundary have been determined for the accepted conditions. The research results can be used in the design and implementation of the technology for producing fuel oil additives based on flammable liquids.

The object of the research is the process of creating distance learning courses on the program of professional retraining in the field of technosphere safety. The subject of research should be considered professional retraining in the field of technosphere safety. In the process of research, the main forms of public education in the field of natural and man-made emergency situations were reviewed and presented. Learning using modern technology, i.e. distance education. As a result of research on the basis of the Higher School of Technospheric Safety of Peter the Great St. Petersburg Polytechnic University, he developed a distance learning course, which is a set of activities aimed at finding information on the Internet, communication, teacher training, access to databases, periodic analysis. information publications distributed over the Internet. Developed programs for EMERCOM employees of Russia, employees of federal fire services, employees of the ATC ROSATOM, employees of the “Training and Methodological and Operational Character”, search and rescue services, as well as representatives of the armed forces and emergency situations, etc.

Выдвинута гипотеза о возможности замены ФЗВ в виде нормального распределения или распределения Вейбула для физических поражающих факторов источников ЧС единым универсальным логарифмически нормальным законом. Статистическая проверка показала, что по критерию Фишера для описания действия поражающих факторов источников ЧС на элементы конструкций предпочтительнее использовать ФЗВ в виде логарифмически нормального закона, чем по закону Вейбула.