灯具泄漏电流测试线路中隔离测试变压器次级接地问题直接影响着测试结果的准确性。
The earthing of secondary circuit of an isolating test transformer on the circuit for luminaire leakage current test strongly influences the accuracy of test results.
场地分控箱供电禁止直接从泵站相线上搭接，如果需要从泵房供电，必须安装隔离变压器和隔离线路，因为场地分控箱处于雷电的威胁下。
The power supply of sub-control box is forbid to link directly from pump phase line, if needs to supplied from pump house, the isolate transformer and isolate line should be build up.
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