In this paper, the task was to describe the basic theoretical assumptions of static electricity. In the theoretical background, we defined some terms such as: electric field, electric field strength, electric potential, electric current, influence, polarization, electric displacement vector, capacity, work and energy in an electric field, and force in an electric field. In the third and fourth chapters, we described the formation of static electricity and its appearance in everyday life. In the fifth chapter, we looked at the possible dangers and damages caused by the discharge of static electricity. We also touched on atmospheric static electricity in the sixth chapter. The focus of the work is on the description of methods for protection against the harmful effects of static electricity. The seventh chapter talks about measures to protect against static electricity, by which we mean: grounding, maintenance of adequate humidity in the air, air ionization, antistatic preparation, increasing the conductivity of poorly conductive materials and removing static electricity by influence. We also touched on protective measures in explosive environments, protection of flammable and poorly conductive liquids, personal protection and protection in industry. In order to implement protective measures at all, it is necessary to regularly measure static electricity with appropriate instruments. This was discussed in chapter eight.