Many people are not highly educated, and it is easy to believe online rumors, such as the need to shut down the phone at night, otherwise it will affect the brain; the transformer will produce radiation during the operation.
Therefore, it is deliberately explained to some people today that the transformer will not generate radiation during its operation.
In the field of electromagnetic environment and public health, transformers and other power transmission and transformation facilities produce “electric fields”, “magnetic fields” and “electromagnetic fields” rather than “electromagnetic radiation”. “Electromagnetic radiation” is a special engineering term for radio communication engineering and electromagnetic compatibility expertise. It refers to the phenomenon that energy is emitted from the source to space in the form of electromagnetic waves, or refers to the propagation of energy in the form of electromagnetic waves in space. It is not appropriate to refer to “electromagnetic radiation” as an environmental impact factor in the field of electromagnetic field environmental health. Power transmission facilities use equipment as the carrier for energy transmission, not as “electromagnetic waves” for energy transmission. Around the power transmission and transformation facilities, there are “electric fields”, “magnetic fields” and “electromagnetic fields”.
The power frequency magnetic field generated by the AC power transmission and transformation facilities belongs to a very 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 mutually independent from each other, different from the high frequency electromagnetic field. The electric and magnetic fields of high-frequency electromagnetic fields are alternately generated to propagate forward and form electromagnetic energy. In the documents of international authoritative organizations, the electric and magnetic fields generated by AC power transmission facilities are clearly called power frequency electric fields and power frequency magnetic fields, not electromagnetic radiation.
ZTELEC transformer, quality assurance