The Qiaopu electrical teach you how the power lines were detected with instrument

Qiaopu electrical employees how to use the instrument to detect the power lines? Before starting the installation, the application multimeter 250V or 500V AC voltage profile measured food single-phase AC voltage is within the scope of 220 (1 ± 10 write) V three-phase AC whether the 380 (1 within the soil 10%).
The allowable current of the power lines should satisfy the following relationship: air conditioner dedicated sub-circuit: less than or equal to the air conditioner rated current of 1.3 times the uniform .3 consider the coefficient of the load operation. Air conditioners non-dedicated circuit: less than or equal to 1.3 times the air conditioner rated current and rated current of the other electrical cable should be used a plastic jacket line, the line that should not have joints. Power supply should be grounded.