Distribution box is a kind of electrical equipment with centralized distribution management, which is used to output electric energy from high voltage transmission system to various user equipment. The electromagnetic frequency of components in the distribution box is generally 50HZ, which is far from harmful to human body.

According to the national regulations, the distribution box entering the university dormitory is generally 10 kV and below, which belongs to the scope of national exemption, and there is no safe distance and no radiation damage to human body.