为使额定电压大于150 kV(Um = 170 kV)小于等于500 kV(Um = 550 kV)而采用的挤包绝缘电源电缆及其配件的试验方法和要求

[中文适用范围]： 本国际标准规定了额定电压超过 150 kV (Um = 170 kV) 至 500 kV (Um = 550 kV) 的电力电缆系统@固定装置用挤包绝缘电缆及其附件的测试方法和要求。这些要求适用于通常安装和操作条件下的单芯电缆及其附件@，但不适用于特殊电缆及其附件@，例如海底电缆@，因为可能需要对标准测试进行修改或可能需要特殊的测试条件有待设计。本标准不包括挤包绝缘电缆和纸绝缘电缆之间的过渡接头。 [外文原描述]： IEC 62067:2011 specifies test methods and requirements for power cable systems, cables with extruded insulation and their accessories for fixed installations, for rated voltages above 150 kV (Um = 170 kV) up to and including 500 kV (Um = 550 kV). The requirements apply to single-core cables and to their accessories for usual conditions of installation and operation, but not to special cables and their accessories, such as submarine cables, for which modifications to the standard tests may be necessary or special test conditions may need to be devised. This standard does not cover transition joints between cables with extruded insulation and paper insulated cables. The significant technical changes with respect to the previous edition are as follows: - addition of the extension of prequalification test, requiring significant less time to be completed compared with the full prequalification test; - during the routine tests on the main insulation of prefabricated accessories the required sensitivity level for the partial discharge test is reduced from 10 pC to 5 pC. NOTE: For a more detailed history of events leading up to this second edition, see the introduction.