Me where the company participated in jiangsu province standard DB32 / T2887-2016 journal of tractive elevator wire rope electromagnetic detection method has been implemented, the provisions of this standard for adopting the principle of magnetic flux and magnetic flux leakage and remanent magnetism nondestructive testing dogan dense column elevator traction ferromagnetic partial defects such as internal and external wire rope broken wires and metal loss to the cross-sectional area method, test application rules.