First, let's analyze the two reasons for voltage instability. The first is the instability caused by the external power supply (during peak power consumption, the transformer capacity is low, the load is unstable, and the power line is unstable. long and the loss is caused by excessive significant voltage drop), this can only be solved by a voltage regulator. The second reason is that there is no problem with the external power supply, but the voltage is low and unstable due to the small input line and heavy house load. This can be fixed by replacing the input line. Since many families have equipped themselves with high-power air conditioners, water heaters and kitchen appliances in recent years, the input cables are more than 4 square meters (copper core), and urban suites use generally 6 to 10 square meters. I think you already understand how chleisure.
Broken wires indicate an overcurrent situation. If the electrical load is fixed, increasing the voltage level can reduce the line current, but the principle is that the load distribution device and the voltage level of the electrical equipment are important. corresponds, if a device with a rated voltage of 6KV is connected to a 10KV line, the insulation will be damaged.