Because the traditional calibrating method is not suitable for testing optical electric current transformer, a novel test system is designed based on the IEC standard and error analysis theory.
鉴于传统的电流互感器测试方法已经不适于校验新型的电流互感器，依据IEC标准和误差分析理论，提出了光电电流互感器的测试和校验方法。
Electric optical cable is a particular optical cable for the electric department to communicate. As its span condition is unusual, testing its mechanical capability becomes more important.
电力光缆是电力部门通信用的特种光缆，由于其特殊的架设条件，对其机械性能的检测提出了更高的要求。
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