What Should I Do If There Is A Substation Near The House? How Far Is The Substation From The House Suitable?
A substation refers to a place in the power system that transforms voltage and current, receives and distributes electrical energy.
Whether the substation will emit radiation and endanger the safety of surrounding residents is a question that many people are more concerned about. So what should we do if there is a substation near the house?
1. The hazards of substations
The frequency of power equipment in common 220kV and 110kV substations is 50 Hz. What it produces is a very low-frequency electromagnetic field, and it is impossible to transmit energy in space in the form of electromagnetic waves. Therefore, the actual impact of the substation on the surroundings is mainly electromagnetic induction effect, rather than electromagnetic radiation. In fact, we experience electromagnetic induction in person every winter. For example, the static electricity generated when the sweater is taken off in a dry environment, and the electromagnetic induction energy of the substation is small, so its impact is negligible.
However, living near the substation still has some harm. The first is the lighting problem. For safety reasons, the substation is turned on 24 hours a day, and the surrounding residents may be affected by it. Secondly, there is the problem of noise. Many residents may be unbearable due to the sound of transformers running, the sound of large mechanical vehicles entering and exiting, and the imperfect noise reduction materials of substations. In this regard, some institutions are developing some noise reduction materials and possibilities. There are also reasons for operational safety. High-load machines may have accidents or even explosions, but because the ground is empty, accidents will be effectively suppressed. If you live around a substation, you can report to the relevant department as soon as possible if there is an abnormal situation.
2. How far is the appropriate distance from the substation to the residence?
The power supply facilities set up in residential areas must meet these standards in order to pass the environmental protection administrative license: the power frequency electric field intensity does not exceed 4 kV/m; the magnetic induction intensity does not exceed 0.1 mTesla; in terms of radio interference, the 110KV project does not If it exceeds 53 decibels, the 500KV project does not exceed 55 decibels; the noise impact requires no more than 55 decibels during the day and 45 decibels at night.
my country currently has certain requirements on the distance between equipment and buildings. For example, for a general 10KV-35KV substation, the front is required to be at least 12 meters away from residential houses and the side is at least 8 meters; for the construction of substations above 35KV, the front is required to be at least 15 meters away from residential houses and at least 12 meters from the side; box-type substations are required to be at least 5 meters away from residential houses. . The radiation safety distance of 110KV substation is more than 300 meters, and it cannot be built next to sensitive buildings such as residential buildings and kindergartens.
