1, The selection of testing ground. Measured cable selection principles for the failure of a conductor to phase and its formation and high voltage power supply and sampling tester is strictly to form a closed loop its equivalent in the closed loop should not have larger equivalent resistance (in addition to the point of failure).
2, when making high resistance fault tests, high voltage pulse generating circuits and equipment testing circuits strictly separated from the ground wire connection, should not have common ground. They can discharge rods in the high-pressure ground back to the road.
3, safety grounding. When the connection is good after the test line, be sure to put the metal shielding of the cable connected to the earth, or a reliable system, to ensure the safety of the operating personnel and equipment.
ZMS cable company, also encounter a variety of cable failure, with professional repair technology and quality cable products, to each customer who comes to provide.
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