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Electrical knowledge

Transformer radiation and safety precautions

Views : 165
Update time : 2018-06-26 14:11:45
A recent news reported that a community installed a transformer between two houses. Recently, he frequently received a telephone call from the owner saying that the transformer could not be placed there and that there was radiation. However, the settlement of the bureau is that the location of the transformer is passed by the planning department and the distance from the residential building is within the safe range. If the residents still have any doubt, they can be reflected to them. In response to this problem, we as a professional manufacturer of transformers, more technical speaking power.
In fact, the safety distance transformer is not a radiation safety distance, the relevant provisions of the equipment is charged only when the required safety manual labor. Checked the information, the conclusion as long as the distance transformer is greater than 0.7 meters on the line.
The first kind of safety distance: safety distance when the equipment is not power failure, the provisions of the following values: 10kV and below a 0.7m, 35kV-1.0m, l10KV a 1.5m, 220kV a 3.0m, 500kV a 5.0m. The safety distance is defined in the removal of the equipment cover the case, and to consider the staff in the work of the normal range of activities. Such as the staff of the charged part of the distance, to maintain the above values, then allow the charged equipment to work without power outages, handcart rear switchgear without mesh barrier, open the iron door should also be According to the provisions of the implementation of the distance. This safety distance is not simply a function of the discharge distance, nor is it a "minimum safety distance", but a value determined after certain contingencies and safety margins have been taken into account.
Of course, we must also understand the electromagnetic radiation on the human body, we must first have a scientific and objective understanding of electromagnetic radiation. Transmission lines and substations electromagnetic radiation is very low frequency (50HZ, also known as power frequency) of electromagnetic radiation, and other high-frequency radiation (such as cell phones) belong to different types. And the electromagnetic radiation generated in the process of power transmission will decrease sharply with the increase of distance. Therefore, long-term work in the substation and power plant staff on duty outside the safe working distance, health will not be affected by electromagnetic radiation. According to the requirements of the state, the power transmission and transformation projects undergo environmental assessment and approval by environmental protection departments to ensure that electromagnetic radiation has no adverse effect on the public. Therefore, after transformers are placed, the radiation impact on residents must be considered.