Electrical test for newly installed cable

7.2.1 3.6/kv--18/30kv The cable should be applied to the system of alternating current between the conductor and the matal shield, which continues to be 5 min. 7.2.2 35kv cable should be in the supplier and the buyer after consulation, the waveform of the voltage should be basicall a sine wave, frequency of 20hz-- 300hz, the test voltage should be 2U0, continuous 50min. 7.3 The maximum direct current resistance(table 25) of the two conductor