本指南介绍了额定电压为5 kV及以上的屏蔽直流绝缘电力电缆系统的直接电压验收和维护测试的推荐做法和程序。它适用于用于传输或分配直流电力的所有类型的直流电力电缆。给出的测试水平假设电缆系统具有有效接地的中性点系统或接地的金属屏蔽。

This guide presents the recommended practices and procedures for direct voltage acceptance and maintenance testing of shielded dc insulated power cable systems rated 5 kV and above. It applies to all types of dc power cable that are intended for the transmission or distribution of dc electric power. The test levels given assume that the cable systems have an effectively grounded neutral system or a grounded metallic shield.