BS 7870-4.20-2011 配电和发电设施用低压(LV)和中等电压(MV)聚合绝缘电缆.额定电压为11kV和33kV的挤制绝缘配电电缆的规范.三芯11kV的电缆

标准号：BS 7870-4.20-2011
中文标准名称：配电和发电设施用低压(LV)和中等电压(MV)聚合绝缘电缆.额定电压为11kV和33kV的挤制绝缘配电电缆的规范.三芯11kV的电缆
英文标准名称：LV and MV polymeric insulated cables for use by distribution and generation utilities. Specification for distribution cables with extruded insulation for rated voltages of 11 kV to 33 kV. Three-core 11 kV cables
标准类型：K13
发布日期：2011/12/31 12:00:00
实施日期：2011/12/31 12:00:00
中国标准分类号：K13
国际标准分类号：29.060.20
引用标准：BS 3988-1970;BS 7870-1;BS 7870-2;BS EN 50267-2-1;BS EN 60228-2005;BS EN 60332-1-2-2004;BS EN 60332-3-24-2009;BS EN 60811-1-2;BS EN 60811-1-3;BS EN 60811-2-1;BS EN 61034-1;BS EN 61034-2
适用范围：This section of BS 7870 specifies requirements for the construcion,dimensions and mechanical and electrical properties of 6.35/11(12)kV three-core cables having either aluminium or copper conductors,cross-linked polyethylene (XLPE) or ethylene propylene rubber (EPR) extruded insulaiton,a copper wire metallic screen and an oversheath of one of the following compounds.a) medium density polyethylene (MDPE) compound type DMP 5 (Type A cables);b) thermoplastic compound type DMZ 4 for cables having a low emission of smoke and corrosive gases when affected by fire (Type B cables).This section of BS 7870 is applicable to cables that are designed for a maximum continuous conductor operating temperature of 90℃ and for a maximum short-circuit conductor temperature of 250℃.