Ningbo Qiaopu Electric Co., Ltd. teach you how to use the instrument to detect power lines

Ningbo Qiaopu Electric Co., Ltd. employees how to use the instrument to detect the power lines? Multimeter 250V or 500V AC voltage profile measured AC voltage eat a single set in the beginning of the device before, whether within the limitations of the 220 ​​(1 ± 10 write) V The three custom AC ability within the confines of 380 (± 10%).
Promised current power lines should be content with the following relationship: the air conditioner dedicated sub-circuit: less than or equal to 1.3 times the uniform of the air conditioner extra current .3 pondered coefficient set operation. Non-dedicated circuit of air conditioner: less than or equal to 1.3 times the air conditioner the additional current plus other electrical additional current. Convergence line plastic sheathed cable, there should be no joints in the line center. Power should be grounded.