【Safety Article】How far away should 10 people be from a transformer to be safe?

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Transformers are mainly used to change voltage. Without it, residents cannot use the electricity generated by power plants. How far away should ordinary people be from transformers to be safe? Don’t rush. Let’s first take a look at the classification of transformers. What ordinary people usually see are distribution transformers with voltages of 10–35 kV or less, typically 10 kV or 0.4 kV. Based on their insulation type, they can be classified into oil-immersed transformers, dry-type transformers, and gas-insulated transformers. Those whose internal coil structure cannot be seen from the outside are generally oil-immersed transformers. This type of transformer is flammable and is mainly installed outdoors. If you see it on fire, under no circumstances should you use water to put out the fire; instead, professionals should cover the flames with dry sand to extinguish them ； If the outside is on fire and the transformer is not damaged, it can be extinguished using carbon dioxide, 1211, or dry powder fire extinguishers. People should stay at a distance of 2 meters from live electrical equipment. Those whose internal coil structure can be seen from the outside are generally dry-type transformers. This type of transformer produces little noise and is mainly installed in the power distribution rooms of urban residential areas. However, many of the connection wires are exposed; untrained personnel should not enter the power distribution room. Gas transformers have a high safety factor, but their cost is also high; currently they rely largely on imports and are used only by important customers, so they are not commonly seen. So, the most crucial question arises: how far away from a transformer is it safe to be? Safety factors are taken into account in the design of all transformers; ordinary people can remain safe as long as they do not come into contact with the transformers or enter the rooms where they are located. End