The construction power box must be provided with a rain proof shed, the welding secondary line joint must be tightly wrapped to prevent power leakage from hurting people, and all construction electrical equipment must be equipped with leakage protector...

The construction power box must be provided with a rain proof shed, the welding secondary line joint must be tightly wrapped to prevent power leakage from hurting people, and all construction electrical equipment must be equipped with leakage protector...

The construction power box must be provided with a rain proof shed, the welding secondary line joint must be tightly wrapped to prevent power leakage from hurting people, and all construction electrical equipment must be equipped with leakage protector...