| Part 3
|
Rated Voltage kV |
Nominal Cross-section
mm2 |
Copper Conductor |
Aluminum Conductor |
|
Positive and Negative Sequence Impedance |
Zero Sequence Impedance |
Positive and Negative Sequence Impedance |
Zero Sequence Impedance |
|
76/132 |
240 |
0.0970+j0.222 |
0.171+j0.131 |
0.616+j0.222 |
0.235+j0.131 |
|
300 |
0.0777+j0.215 |
0.150+j0.126 |
0.129+j0.215 |
0.201+j0.126 |
|
400 |
0.0613+j0.206 |
0.131+j0.120 |
0.101+j0.206 |
0.170+j0.120 |
|
500 |
0.0485+j0.199 |
0.115+j0.115 |
0.0787+j0.199 |
0.145+j0.115 |
|
630 |
0.0384+j0.191 |
0.102+j0.110 |
0.0616+j0.191 |
0.126+j0.110 |
|
800 |
0.0310+j0.183 |
0.0937+j0.103 |
0.0489+j0.183 |
0.112+j0.103 |
|
1000 |
0.0259+j0.176 |
0.0855+j0.0933 |
0.0396+j0.176 |
0.0992+j0.0993 |
|
800* |
0.0288+j0.182 |
0.0904+j0.103 |
- |
- |
|
1000* |
0.0232+j0.173 |
0.0806+j 0.0981 |
- |
- |
|
1200* |
0.0201+j0.167 |
0.0754+j 0.0948 |
0.0322+j0.167 |
0.0875+j0.0948 |
|
1400* |
0.0174+j0.164 |
0.0717+j0.0933 |
0.0278+j0.164 |
0.0820+j0.0933 |
|
1600* |
0.0155+j0.162 |
0.0681+j0.0920 |
0.0246+j0.162 |
0.0772+j0.0920 |
|
1800* |
- |
- |
0.0220+j0.157 |
0.0728+j0.0895 |
|
2000* |
- |
- |
0.0200+j0.155 |
0.0700+j0.0884 |
|
127/220 |
400 |
0.0614+j0.193 |
0.117+j0.133 |
0.101+j0.193 |
0.156+j0.133 |
|
500 |
0.0485+j0.186 |
0.102+j 0.128 |
0.0787+j0.186 |
0.133+j0.128 |
|
630 |
0.0384+j0.179 |
0.0916+j0.121 |
0.0616+j0.179 |
0.115+j0.121 |
|
800 |
0.0311+j0.171 |
0.0791+j0.116 |
0.0489+j0.171 |
0.101+j0.115 |
|
1000 |
0.0260+j0.164 |
0.0678+j0.107 |
0.0397+j0.164 |
0.0860+j0.109 |
|
800* |
0.0288+j0.169 |
0.0750+j0.114 |
- |
- |
|
1000* |
0.0232+j0.160 |
0.0678+j0.107 |
- |
- |
|
1200* |
0.0201+j0.155 |
0.0605+j0.104 |
0.0322+j0.155 |
0.0726+j0.104 |
|
1400* |
0.0175+j0.152 |
0.0568+j0.102 |
0.0278+j0.152 |
0.0672+j0.102 |
|
1600* |
0.0156+j0.149 |
0.0512+j0.101 |
0.0246+j0.149 |
0.0602+j0.100 |
|
1800* |
- |
- |
0.0220+j0.144 |
0.0565+j0.0977 |
|
2000* |
- |
- |
0.0201+j0.142 |
0.0494+j0.0968 |
Continuous Current Rating (reference value) Unit: A
|
Rated
Voltage
kV |
Nominal Cross-section mm2 |
In Air |
Directly Buried |
|
In Flat Formation
○○�?/FONT> |
In Trefoil Formation
�?/FONT>
○○ |
In Flat Formation
○○�?/FONT> |
In Trefoil Formation
�?/FONT>
○○ |
|
Cu |
Al |
Cu |
Al |
Cu |
Al |
Cu |
Al |
|
38/66
48/66 |
150 |
496 |
389 |
448 |
346 |
410 |
318 |
376 |
249 |
|
185 |
570 |
440 |
511 |
397 |
463 |
361 |
424 |
328 |
|
240 |
612 |
524 |
596 |
465 |
541 |
419 |
487 |
381 |
|
300 |
769 |
600 |
680 |
532 |
607 |
472 |
544 |
429 |
|
400 |
891 |
697 |
777 |
617 |
689 |
540 |
617 |
487 |
|
500 |
1031 |
811 |
887 |
7]0 |
780 |
617 |
694 |
554 |
|
630 |
1187 |
942 |
1010 |
815 |
887 |
703 |
71 l |
626 |
|
800 |
1357 |
1085 |
1142 |
935 |
987 |
790 |
853 |
706 |
|
1000 |
1520 |
1245 |
1257 |
996 |
1083 |
888 |
923 |
780 |
|
800* |
1411 |
- |
1187 |
- |
1026 |
- |
887 |
- |
|
1000* |
1610 |
- |
133l |
- |
1147 |
- |
978 |
- |
|
1200* |
1475 |
1407 |
1437 |
1 187 |
1229 |
988 |
1036 |
862 |
|
1400* |
1914 |
1542 |
1540 |
1280 |
1315 |
1060 |
1094 |
920 |
|
1600* |
2049 |
1656 |
1627 |
1369 |
1388 |
1127 |
1142 |
968 |
|
1800* |
- |
1784 |
|
1448 |
- |
1 188 |
- |
1003 |
|
2000* |
- |
1867 |
|
1517 |
- |
1243 |
- |
1050 |
|
64/110 |
240 |
650 |
505 |
590 |
460 |
504 |
393 |
480 |
369 |
|
300 |
745 |
580 |
672 |
527 |
571 |
446 |
542 |
417 |
|
400 |
870 |
680 |
769 |
608 |
652 |
513 |
619 |
475 |
|
500 |
100l |
790 |
878 |
701 |
744 |
586 |
700 |
542 |
|
630 |
1159 |
921 |
1001 |
811 |
844 |
672 |
787 |
619 |
|
800 |
1325 |
1062 |
1133 |
927 |
915 |
750 |
840 |
685 |
|
1000 |
1480 |
1211 |
1301 |
1040 |
988 |
837 |
906 |
757 |
|
800* |
1376 |
- |
1178 |
- |
950 |
- |
873 |
- |
|
1000* |
1567 |
- |
1318 |
- |
1046 |
- |
960 |
- |
|
1200* |
1715 |
1373 |
1423 |
1174 |
1123 |
930 |
1008 |
835 |
|
1400* |
1863 |
1495 |
1525 |
1267 |
1291 |
1045 |
1080 |
898 |
|
1600* |
1990 |
1609 |
1614 |
1352 |
1358 |
1180 |
1144 |
954 |
|
1800* |
- |
1735 |
|
1433 |
- |
1234 |
- |
1008 |
|
2000* |
- |
1816 |
|
1500 |
- |
1305 |
- |
1054 |
Continuous Current Rating (reference value) Unit: A
|
Rated
Voltage
kV |
Nominal Cross-section mm2 |
In Air |
Directly Buried |
|
In Flat Formation
○○�?/FONT> |
In Trefoil Formation
�?/FONT>
○○ |
In Flat Formation
○○�?/FONT> |
In Trefoil Formation
�?/FONT>
○○ |
|
Cu |
Al |
Cu |
Al |
Cu |
Al |
Cu |
Al |
|
76/132 |
240 |
655 |
507 |
592 |
461 |
525 |
410 |
482 |
381 |
|
300 |
748 |
585 |
672 |
530 |
593 |
463 |
545 |
429 |
|
400 |
862 |
676 |
769 |
608 |
675 |
530 |
612 |
487 |
|
500 |
995 |
782 |
879 |
701 |
767 |
602 |
685 |
550 |
|
630 |
1145 |
908 |
997 |
807 |
862 |
689 |
766 |
621 |
|
800 |
1305 |
1048 |
1125 |
930 |
964 |
778 |
845 |
700 |
|
1000 |
1456 |
1190 |
1237 |
1038 |
1053 |
865 |
911 |
77l |
|
800* |
1356 |
- |
1170 |
- |
1002 |
- |
877 |
- |
|
1000* |
1542 |
- |
1310 |
- |
1115 |
- |
965 |
- |
|
1200* |
1685 |
1348 |
1415 |
1162 |
1190 |
930 |
1026 |
853 |
|
1400* |
1830 |
1470 |
1486 |
1260 |
1272 |
1031 |
1085 |
910 |
|
1600* |
1952 |
1585 |
1601 |
1348 |
1335 |
1095 |
1127 |
960 |
|
1800* |
- |
1704 |
- |
1425 |
- |
1147 |
- |
994 |
|
2000* |
- |
1783 |
- |
1491 |
- |
1200 |
- |
1040 |
|
127/220 |
400 |
849 |
663 |
76l |
600 |
708 |
554 |
607 |
482 |
|
500 |
976 |
777 |
866 |
693 |
809 |
636 |
679 |
549 |
|
630 |
1128 |
891 |
984 |
794 |
915 |
728 |
761 |
615 |
|
800 |
1285 |
1027 |
1110 |
910 |
1025 |
825 |
835 |
690 |
|
1000 |
1440 |
1170 |
1221 |
1020 |
1133 |
920 |
902 |
765 |
|
800* |
1335 |
- |
1153 |
- |
1067 |
- |
867 |
- |
|
1000* |
1525 |
- |
1293 |
- |
1200 |
- |
955 |
- |
|
1200* |
1677 |
133l |
1394 |
1145 |
1296 |
1030 |
1010 |
843 |
|
1400* |
1829 |
1453 |
1496 |
1238 |
1397 |
1118 |
1067 |
900 |
|
1600* |
1965 |
1572 |
1584 |
1322 |
1484 |
1195 |
1113 |
950 |
|
1800* |
- |
1708 |
- |
1405 |
- |
1271 |
- |
984 |
|
2000* |
- |
1787 |
- |
1470 |
- |
1330 |
- |
1030 |
Rating Factors of Current Rating under Different Ambient Temperature:
|
Ambient Temp. |
0 |
5 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
|
Rating Factor |
In Air |
1.34 |
1.30 |
1.27 |
1.22 |
1.18 |
1.14 |
1.10 |
1.05 |
1.00 |
|
Underground |
1.18 |
1.14 |
1.11 |
1.07 |
1.04 |
1.00 |
0.96 |
0.92 |
0.88 |
Rating Factors of Current Rating under Different Soil Thermal Resistivities:
|
Soil thermal resistivity℃·m/w |
0.8 |
1.0 |
1.2 |
1.5 |
1.8 |
2�? |
2.5 |
3.0 |
|
Rating factor |
1.07 |
1.06 |
1.0 |
0.92 |
0.86 |
0.83 |
0.75 |
0.70 |
Property parameters which are referred are based on the following conditions.
1. Three-phase system laid in single circuit with a space of 250mm between the conditions and conductor temperature is 90�?
2. Type of earth bonding of metallic sheath: In single point bonding or cross-bonding.
3. In air, ambient temperature 40�? sheltered from direct solar radiations.
Directly buried, with 1m depth in a soil of 25�? thermal resistivity 1.2℃·m/w.
4. Short circuit currents calculated according to IEC 949 based on thermal insulation, Initial temperature:
for conductor 90�? for metallic sheath 80℃，final temperature: 250�? duration: 1 second. |
China National
Electric Wire&Cable Imp./Exp. Corp
