Study on the comparison evaluation method for the screening effectiveness of shielded cable

The main evaluation methods and testing methods of the screening effectiveness of shielded cable are summarized, peak screening effectiveness and time-domain testing method are proposed especially for EMP. The computational model of braided shielded cable's surface transfer impedance is analyzed. By contrast with the computational data of Kely model, the curve of the proposed time-domain methods and the traditional frequency-domain methods fit well with that of the computational result one another. (authors)