Does the power transformer have radiation to the human body?

Whether the power transformer has radiation to the human body, we must first clarify a concept to the general public: in the field of electromagnetic environment and public health, the power transmission and transformation facilities such as transformers generate "electric field", "magnetic field" and "electromagnetic field", not "electric field". Electromagnetic radiation". "Electromagnetic radiation" is a special engineering term in the field of radio communication engineering and electromagnetic compatibility. It refers to the phenomenon that energy is emitted from a source into space in the form of electromagnetic waves, or refers to the propagation of energy in space in the form of electromagnetic waves. It is inappropriate to refer to "electromagnetic radiation" as an environmental impact factor in the field of electromagnetic field environmental health. Power transmission and transformation facilities use equipment as a carrier for energy transmission, rather than "electromagnetic waves" for energy transmission. Around the power transmission and transformation facilities, there are "electric fields", "magnetic fields" and "electromagnetic fields".

Why is it said that power transmission and transformation facilities such as transformers cannot produce effective electromagnetic radiation to the surrounding environment? This is because the power frequency magnetic field generated by the AC power transmission and transformation facilities is an extremely low magnetic field, which affects the surrounding environment through electromagnetic induction. The frequency of the power frequency electric field and the power frequency magnetic field is only 50Hz, and the wavelength is up to 6000km, and the transmission line itself, because its length is generally much smaller than this wavelength, cannot constitute effective electromagnetic radiation. At the same time, the power frequency magnetic field and the power frequency electric field are independent of each other, which is different from the high frequency electromagnetic field. The electric and magnetic fields of the high-frequency electromagnetic field are alternately generated radiation that propagates forward to form electromagnetic energy. In the documents of international authoritative organizations, the electric and magnetic fields generated by AC power transmission and transformation facilities are clearly called power-frequency electric fields and power-frequency magnetic fields, rather than electromagnetic radiation.