电缆选择.doc

表1电机短路器5SJ4D/3P接触器3TF热继电器3UA0.75KW2.3A6A9A3UA-4 2.5A1.1KW3.4A6A9A3UA-4 4A1.5KW4A6A9A3UA-6.3 4.5A2.2KW5.8A10A9A3UA-10 6.5A3KW7.7A16A16A3UA-10 8.5A4KW9.9A16A16A3UA-16 11A5.5KW13A20A22A3UA-16 14.5A7.5KW18A25A32A3UA-25 20A11KW25A40A45A3UA-40 28A15KW34A50A45A3UA-50 38A18.5KW41A63A63A3UA-50 45A电机 KW额定电流(A）短路器3VL（A)接触器3TF（A）热继电器3UA224563633UA-63 50A305780853UA-70 63A45861251403UA-125 95A551051401403UA-125 115A751431802053UA-250 160A901712252053UA-250 190A注：1，45KW及以上的电机建议采用软启动器2，补有保护电动机的塑壳继电器要求采用电动机专用型的。表二导线，电缆与断路器配合表断路器规格（A)DWZR(NH)-BYJ导线规格DWZR-YJY-1KV电缆规格微型断路器穿镀锌电线管（SC)管空气中敷设（0.8）103X2.5-SC205X2.5-SC205X4163X2.5-SC205X2.5-SC205X4203X4-SC205X4-SC205X4253X6-SC205X6-SC205X6323X10-SC205X10-SC255X6403X10-SC255X10-SC255X10503X16-SC255X16-SC325X10633X25-SC325X25-SC405X16塑壳式断路器803X25+2X161003X35+2X161253X50+2X251603X70+2X352003X95+2X502503X120+2X703153X150+2X704002(3X95+2X50)5002(3X150+2X70)框架式断路器630630A母线800800A母线10001000A母线12501250A母线16001600A母线20002000A母线25002500A母线32003200A母线40004000A母线注：上表载流量已按环境温度35c折算，并考虑了多根并列敷设的修正系数。表三重大型耐火电缆（BTTZ-750V)与断路器配合表BTTZ单芯电缆规格 断路器规格（A)BTTZ多芯电缆规格10BTTZ-750V-4X1.516BTTZ-750V-4X1.520BTTZ-750V-4X2.525BTTZ-750V-4X432BTTZ-750V-4X640BTTZ-750V-4X1050BTTZ-750V-4X1663BTTZ-750V-3X25+1X16塑壳式断路器1003（BTTZ-750V-35)+1(BTTZ-750V-25)1253（BTTZ-750V-50)+1(BTTZ-750V-25)1603（BTTZ-750V-70)+1(BTTZ-750V-35)2003（BTTZ-750V-120)+1(BTTZ-750V-70)2503（BTTZ-750V-150)+1(BTTZ-750V-70)4003（BTTZ-750V-185)+1(BTTZ-750V-95)框架式断路器6303(BTTZ-750V-300)+1(BTTZ-750V-150)8003(BTTZ-750V-300)+1(BTTZ-750V-150)10003(BTTZ-750V-400)+1(BTTZ-750V-240)表四10KV交联聚乙烯绝缘电缆载流量表电缆型号，规格载流量（A)变压器负荷容量（KVA)计算电流（A)穿管埋地敷设（室外）YJV-10KV-3X168263038.5YJV-10KV-3X1682100061.1YJV-10KV-3X35125125076.4YJV-10KV-3X501522000122.2YJV-10KV-3X701822500152.7YJV-10KV-3X1502764000244.3YJV-10KV-3X1853115000305.42(YJV-10KV-3X185)4978000488.7空气中敷设（室内）YJV-10KV-3X168163038.5YJV-10KV-3X1681100061.1YJV-10KV-3X35129125076.4YJV-10KV-3X501562000122.2YJV-10KV-3X701892500152.7YJV-10KV-3X1503004000244.3YJV-10KV-3X1853415000305.42(YJV-10KV-3X185)5458000488.7注：本表已按多根并列敷设修正载流量。表五母线载流量表母线型号，规格载流量（A)变压器负荷容量（KVA)断路器（A)TMY-3(80X6)+2(50X50MY-3(120X8)+2（80X6)211010002000TMY-32(100X8)+2(100X8)269312502500TMY-32(120X10)+2(120X10)340016003200TMY-33(100X10)+2(120X8)409020004000表六DWZRR-YJY电缆配金属槽架表电缆规格占用槽架宽度电缆外径电缆截面积DWZR-YJY-1KV-5X43015172DWZR-YJY-1KV-5X63017204DWZR-YJY-1KV-5X103020302DWZR-YJY-1KV-5X163523394DWZR-YJY-1KV-3X25+2X164526539DWZR-YJY-1KV-3X35+2X164528651DWZR-YJY-1KV-3X50+2X254530876DWZR-YJY-1KV-3X70+2X3560351182DWZR-YJY-1KV-3X95+2X5060451527DWZR-YJY-1KV-3X120+2X7060501924DWZR-YJY-1KV-3X150+2X7070552299DWZR-YJY-1KV-3X185+2X9580612875DWZR-YJY-1KV-3X240+2X12090693653DWZR-YJY-1KV-3X300+2X150说明：1,电缆在槽架中敷设间距为电缆外径的平均值故上表中电缆占用槽架宽度约为外径的1.5倍此数据可推算出槽架的宽度。2，电缆外径用于核算槽架的高度，如DWZR-YJY-1KV-3X150+2X70电缆外径为44，其槽架的高度应大于50（考虑壁厚），故应选用75高以上的规格。3，槽架的规格不要选得太多，尽可能统一用几种，宜采用单排扁宽型（100高以下）。4，普通槽架主要用于一般动力，电力配线，如设备机房内未配电。表七电缆槽架标准规格（宽WX高H)CT-100X50CT-400X100CT-500X200CT-800X100CT-1000X150CT-200X50CT-400X150CT-600X100CT-800X150CT-1000X200CT-300X50CT-500X100CT-600X150CT-800X200CT-1200X150CT-300X100CT-500X150CT-600X200CT-1000X100CT-1200X200表八BTTZ氧化镁绝缘耐火电缆配梯架表多芯电缆（总和）单芯电缆（总和）耐火电缆规格占用梯架宽度占用梯架高度耐火电缆规格占用梯架宽度占用梯架高度4X425153X95+2X5060404X630183X120+2X7060404X1030203X150+2X7060404X1030203X185+2X9580504X2535253X240+1X12090603X300+1X15090603X400+1X2010070注：1，单芯防火电缆为防止涡流，每回路四根电缆是上下两排方形敷设的，上表中占用梯架宽度和高度是指每回路四根电缆的总和。 2，PE线可利用防火电缆金属外护套，不必另设。梯架标准规格（宽WX高H)TJ-200X60T