標準號：BS 7870-4.20-2011
中文標準名稱：配電和發電設施用低壓(LV)和中等電壓(MV)聚合絕緣電纜.額定電壓為11kV和33kV的擠制絕緣配電電纜的規范.三芯11kV的電纜
英文標準名稱：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
標準類型：K13
發布日期：2011/12/31 12:00:00
實施日期：2011/12/31 12:00:00
中國標準分類號：K13
國際標準分類號：29.060.20
引用標準：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
適用范圍：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℃.