2024年5月30日发(作者:回宏峻)
导线型号
LGJ-16
LGJ-25
LGJ-35
LGJ-50
LGJ-70
LGJ-95
LGJ-120
LGJ-150
LGJ-185
LGJ-240
环境温度
35℃
92
114
154
184
233
290
334
391
448
536
40℃
85
105
141
170
214
267
307
360
413
494
1
配网线路及设备现场规程
附录6:
油浸纸绝缘电缆极限允许载流量参数表
电
敷设条件
缆型号规格 ZLQ20-3*50 ZLQ20-3*70 ZLQ20-3*95 ZLQ20-3*120 ZLQ20-3*150 ZLQ20-3*185 ZLQ20-3*240
直埋地中① 导体温度60℃,环境I I I I I =I0·K1·K2·K3 I I
温度30℃,校正系数K1取0.926② 华南=I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =245*0.926*1.0 =I0·K1·K2·K3 =I0·K1·K2·K3
地区土壤热阻系数80℃·cm/w,校正系3 =150*0.926 =185*0.926*1.0*1=215*0.926*1.0*1*1.0 =275*0.926*1.0*1=325*0.926*1.0
数K2取1. 0③ 直埋地1根,校正系数K3=130*0.926 *1.0*1.0 .0 .0 =226(A) .0 *1.0
取1. 0 *1.0*1.0 =138.9(A) =171(A) =199(A) =254.6(A) =301(A)
=120.3(A)
在空气中① 导体温度60℃,环境温 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2
度40℃,校正系数K1取0.756② 多根并=120*0.756 =145*0.756 =180*0.756*0.8 =205*0.756*0.8 =235*0.756*0.8 =270*0.756*0.8 =320*0.756*0.8
列敷设(s=d,6根),校正系数K2取0.80 *0.8 *0.8 =109(A) =124(A) =142.1(A) =163.3(A) =193.5(A)
=73(A) =87.7(A)
在沟(管*1)中① 导体温度60℃, I I I I I =I0·K1·K2·K3 I I =I0·K1·K2·K3
环境温度40℃,校正系数K1取0.756② =I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =235*0.756*1.0 =I0·K1·K2·K3 =320*0.756*1.0
单根并列敷设(s=1d,1根),校正系数3 =145*0.756 =180*0.756*1.0*0=205*0.756*1.0*0*0.95 =270*0.756*1.0*0*0.95
K2取1.0③ 电缆穿管时 (1根),校正系=120*0.756 *1.0*0.95 .95 .95 =168.7(A) .95 =229.8(A)
数K3取0.95 *1.0*0.95 =104.1(A) =130(A) =147(A) =193.9(A)
=86(A)
在沟(管*4)中① 导体温度60℃, I I I I I =I0·K1·K2·K3 I I
环境温度40℃,校正系数K1取0.756② =I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =235*0.756*0.9*0.=I0·K1·K2·K3 =I0·K1·K2·K3
多根并列敷设(s=2d,4根),校正系数3 =145*0.756 =180*0.756*0.9*0=205*0.756*0.9*095 =270*0.756*0.9*0=320*0.756*0.9
K2取0.90③ 电缆穿管时 (4根),校正系=120*0.756 *0.9*0.95 .95 .95 =151.9(A) .95 *0.95
数K3取0.95 *0.9*0.95 =93.7(A) =116(A) =133(A) =174.5(A) =206.8(A)
=78(A)
2
2024年5月30日发(作者:回宏峻)
导线型号
LGJ-16
LGJ-25
LGJ-35
LGJ-50
LGJ-70
LGJ-95
LGJ-120
LGJ-150
LGJ-185
LGJ-240
环境温度
35℃
92
114
154
184
233
290
334
391
448
536
40℃
85
105
141
170
214
267
307
360
413
494
1
配网线路及设备现场规程
附录6:
油浸纸绝缘电缆极限允许载流量参数表
电
敷设条件
缆型号规格 ZLQ20-3*50 ZLQ20-3*70 ZLQ20-3*95 ZLQ20-3*120 ZLQ20-3*150 ZLQ20-3*185 ZLQ20-3*240
直埋地中① 导体温度60℃,环境I I I I I =I0·K1·K2·K3 I I
温度30℃,校正系数K1取0.926② 华南=I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =245*0.926*1.0 =I0·K1·K2·K3 =I0·K1·K2·K3
地区土壤热阻系数80℃·cm/w,校正系3 =150*0.926 =185*0.926*1.0*1=215*0.926*1.0*1*1.0 =275*0.926*1.0*1=325*0.926*1.0
数K2取1. 0③ 直埋地1根,校正系数K3=130*0.926 *1.0*1.0 .0 .0 =226(A) .0 *1.0
取1. 0 *1.0*1.0 =138.9(A) =171(A) =199(A) =254.6(A) =301(A)
=120.3(A)
在空气中① 导体温度60℃,环境温 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2 I =I0·K1·K2
度40℃,校正系数K1取0.756② 多根并=120*0.756 =145*0.756 =180*0.756*0.8 =205*0.756*0.8 =235*0.756*0.8 =270*0.756*0.8 =320*0.756*0.8
列敷设(s=d,6根),校正系数K2取0.80 *0.8 *0.8 =109(A) =124(A) =142.1(A) =163.3(A) =193.5(A)
=73(A) =87.7(A)
在沟(管*1)中① 导体温度60℃, I I I I I =I0·K1·K2·K3 I I =I0·K1·K2·K3
环境温度40℃,校正系数K1取0.756② =I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =235*0.756*1.0 =I0·K1·K2·K3 =320*0.756*1.0
单根并列敷设(s=1d,1根),校正系数3 =145*0.756 =180*0.756*1.0*0=205*0.756*1.0*0*0.95 =270*0.756*1.0*0*0.95
K2取1.0③ 电缆穿管时 (1根),校正系=120*0.756 *1.0*0.95 .95 .95 =168.7(A) .95 =229.8(A)
数K3取0.95 *1.0*0.95 =104.1(A) =130(A) =147(A) =193.9(A)
=86(A)
在沟(管*4)中① 导体温度60℃, I I I I I =I0·K1·K2·K3 I I
环境温度40℃,校正系数K1取0.756② =I0·K1·K2·K=I0·K1·K2·K3 =I0·K1·K2·K3 =I0·K1·K2·K3 =235*0.756*0.9*0.=I0·K1·K2·K3 =I0·K1·K2·K3
多根并列敷设(s=2d,4根),校正系数3 =145*0.756 =180*0.756*0.9*0=205*0.756*0.9*095 =270*0.756*0.9*0=320*0.756*0.9
K2取0.90③ 电缆穿管时 (4根),校正系=120*0.756 *0.9*0.95 .95 .95 =151.9(A) .95 *0.95
数K3取0.95 *0.9*0.95 =93.7(A) =116(A) =133(A) =174.5(A) =206.8(A)
=78(A)
2