Whether the power transformer has radiation to the human body
24-01-22
Whether power transformers have radiation to the human body, we must first clarify a concept to the general public: in the field of electromagnetic environment and public health, transformers and other power transmission and transformation facilities produce "electric field", "magnetic field", "electromagnetic field", not "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 to space in the form of electromagnetic waves, or refers to the propagation of energy in space in the form of electromagnetic waves. It is not appropriate to quote "electromagnetic radiation" as an environmental impact factor in the field of electromagnetic field environmental health. Power transmission and transformation facilities use equipment as the carrier for energy transmission, rather than "electromagnetic waves" for energy transmission. Around the transmission and transformation facilities, "electric field", "magnetic field" and "electromagnetic field" are generated ".
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 AC power transmission and transformation facilities is an extremely low magnetic field, which affects the surrounding environment through electromagnetic induction. The frequency of power frequency electric field and power frequency magnetic field is only 50Hz, and the wavelength is 6000kM, and the transmission line itself, because its length is generally much smaller than this wavelength, it 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 field and magnetic field of the high-frequency electromagnetic field are alternately generated to propagate forward and form radiation of electromagnetic energy. In the documents of international authoritative organizations, the electric field and magnetic field generated by AC transmission and transformation facilities are clearly called power frequency electric field and power frequency magnetic field, not electromagnetic radiation.
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Henan Jugao Jiaye Electric Power Equipment Co., Ltd.
Telephone: 86-0375-3017777
E-mail: HNJGJY@163.COM
Address: 337 Huanghe Road, Pingdingshan City, Henan Province, China
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