Lightning Arrester, The "Thunderstorm Bodyguard" That Protects the Lights of Thousands of Homes, Is in Action!

Summer thunder rolls, heavy rain pours, and when the city flickers in lightning, who is silently guarding the safety of the power grid? The answer may be on the inconspicuous high-altitude tower next to you - Lightning Arrester is silently on duty.

This power "safety guard" is far from being as simple as a "lightning rod". It is more like a "safety valve" for a pressure cooker. Imagine that it is usually insulated, but once lightning or severe voltage fluctuations strike (like a surge in pressure), the magical metal oxide resistor inside will instantly "open the gate". The surging overvoltage is introduced into the earth like a tide, protecting the substation, transmission lines and the electrical appliances in your home from "internal injuries caused by lightning strikes".

"Modern lightning arresters react extremely quickly, from bearing pressure to discharging current in microseconds, and can quickly shut down and restore the insulation state. They can be called silent and reliable "bodyguards." Captain Jiang, the maintenance team leader of a city power company, made such a metaphor. Unlike traditional porcelain jackets, today's mainstream polymer composite "jackets" are lighter and tougher, and can even be repaired and repaired while powered.

According to the public annual report of the State Grid, the number of trips caused by lightning in the national distribution network has dropped by about 30% in the past five years, and Lightning Arrester has made an indelible contribution. However, "bodyguards" also need regular "physical examinations". The power maintenance department always conducts intensive inspections of the insulation resistors before summer to ensure that they can "fight when called." Data shows that timely replacement of old lightning arresters can reduce their failure rate by more than 90%, and it is not uncommon for them to serve safely for more than ten years.

The small Lightning Arrester is connected to the overall security of the power grid on one end, and guards the light of thousands of households on the other end. The next time you hear thunder roaring, you might as well imagine this high-altitude "guardian" silently lighting up the "shield" for the city and defusing the dangerous lightning from the sky. Technology protects life, and often shows warmth in this silent place.