The in-process control of PVC sheath of a double core cable

6th International Conference: Modern Technologies for Non-Destructive Testing

Galeeva, N.S.^1 ; Redko, V.V.^1 ; Redko, L.A.^1

National Research Tomsk Polytechnic University, Tomsk, Russia^1

关键词: Cable capacity;    Double core;    In-process control;    Per unit length;    Physical modelling;    Research object;    Test lengths;    Test voltage;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/289/1/012006/pdf
DOI  :  10.1088/1757-899X/289/1/012006

来源: IOP

【 摘 要 】

In this work the possibility of the sheath hermiticity testing by measuring of the cable capacity per unit length variation during spark testing is considered. The research object is 2× 0.75 HO3VVH2-F cable. According to the physical modelling it is proved that such defect of sheath as pinhole through the whole thickness of sheath can be registered for the test length 10 cm with test voltage frequencies 1kHz and 10kHz.