一般电流在进入民宅之前必须将电压降低，以确保安全和提供家用电器适合的电

一般电流在进入民宅之前必须将电压降低，以确保安全和提供家用电器适合的电压。

Results (English) 1:

Current must generally reduce the voltage prior to entering houses, home appliances to ensure safety and provide suitable voltage.

Results (English) 2:

General currents must be lowered before entering a home to ensure safety and provide the right voltage for household appliances.

Results (English) 3:

Generally, the current must reduce the voltage before entering the residential buildings to ensure safety and provide suitable voltage for household appliances.