经交联电缆之脱气方法;PROCESS FOR DEGASSING CROSSLINKED POWER CABLES

摘要

一种电缆，包含：(A)一导体(B)一绝缘层，及(C)一半导体层，其包含，以该半导体层之重量为基准，以重量百分比计：(1)49-98%之一经交联之烯烃嵌段共聚物(OBC)，其具有少于(<)每立方公分0.9克(g/cm 3 )之密度、大于(>)1之熔融指数，并且以该OBC之重量为基准、以重量百分比计，其包含：(a)35-80%软链段，其包含5-50莫耳百分比(mol%)之衍生自含3至30个碳原子之单体的单元；及(b)20-65%硬链段，其包含0.2-3.5mol%衍生自含3至30个碳原子之单体的单元；(2)2-51%导电填料；该绝缘层及该半导体层彼此相接触，系藉由包含将该缆线暴露至一至少80℃之温度，耗时至少24小时之期间的步骤之方法脱气。;) 0.9 grams per cubic centimeter (g/cm 3 ), a melt index greater than (>) 1, and comprising in weight percent based on the weight of the OBC: (a) 35-80% soft segment that comprises 5-50 mole percent (mol%) of units derived from a monomer comprising 3 to 30 carbon atoms; and (b) 20-65% hard segment that comprises 0.2-3.5 mol% of units derived from a monomer comprising 3 to 30 carbon atoms; (2) 2-51% conductive filler; the insulation layer and semiconductor layer in contact with one another, is degassed by a process comprising the step of exposing the cable to a temperature of at least 80℃