    
Hight voltage
cables with insulation of cross-linked polyethylene
HIGH VOLTAGE CABLES XHO 03 (-A)
110 kV
CONSTRUCTION CHARACTERISTICS OF CABLES XHO 03 (-A) 110 kV
| CONDUCTOR AREA |
mm2 |
300 |
400 |
500 |
630 |
800 |
1000 |
| Conductor diameter |
mm |
20.9 |
23.9 |
26.9 |
29.8 |
33.9 |
38.3 |
| Conductor screen thickness |
mm |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
1.0 |
| Insulation thickness |
mm |
18.0 |
18.0 |
18.0 |
18.0 |
18.0 |
18.D |
| Diameter over insulation |
mm |
59.9 |
62.9 |
65.9 |
68.8 |
72.9 |
77.3 |
| Insulahon screen thickness |
mm |
1.2 |
1.2 |
1.2 |
1.2 |
1.2 |
1.2 |
| Lead sheath thickness |
mm |
2.3 |
2.3 |
2.3 |
2.3 |
2.4 |
2.5 |
| Outer sheath thickness |
mm |
3.4 |
3.5 |
3.6 |
3.7 |
3.8 |
4.0 |
| Cable diameter (approx.) |
mm |
75 |
78 |
82 |
85 |
89 |
94 |
| Conductor weight: |
| Cable XHO 03 |
kg/km |
2760 |
3530 |
4450 |
5745 |
7350 |
*** |
| Cable XHO 03 - A |
kg/km |
840 |
1075 |
1355 |
1750 |
2235 |
2820 |
| Cable weight: |
| Cable XHO 03 |
kg/km |
11510 |
12770 |
14180 |
15950 |
18505 |
*** |
| Cable XHO 03 - A |
kg/km |
9590 |
10315 |
11085 |
11950 |
1 9 |
15040 |
ELECTRICAL CHARACTERISTICS OF CABLES XHO 03 (-A) 110 kV
| Conductor resistance at 20°C
(DC) |
| Cable XHO 03 |
ohm/km |
0.060 |
0.047 |
0.037 |
0.028 |
0.022 |
*** |
| Cable XHO 03 - A |
ohm/km |
0.100 |
0.078 |
0.061 |
0.047 |
0.037 |
0.029 |
| Conductor resistance at 90°C
(AC) |
| - Trefoil formation |
| Cable XHO 03 |
ohm/km |
0.078 |
0.062 |
0.049 |
0.039 |
0.032 |
*** |
| Cable XHO 03 - A |
ohm/km |
0.129 |
0.101 |
0.079 |
0.062 |
0.050 |
0.041 |
| - Flat formation (*) |
| Cable XHO 03 |
ohm/km |
0.078 |
0.061 |
0.049 |
0.038 |
0.031 |
*** |
| Cable XHO 03 - A |
ohm/km |
0.129 |
0.101 |
0.079 |
0.082 |
0.049 |
0.040 |
| Capacitance of cable |
nF/km |
139 |
150 |
162 |
172 |
187 |
203 |
| Inductance of cable |
mH/km |
0.452 |
0.433 |
0.418 |
0.405 |
0.390 |
0.375 |
| Direct impedance of cable |
| Cable XHO 03 |
ohm/km |
0.160 |
0.147 |
0.138 |
0.131 |
0.124 |
*** |
| Cable XHO 03 - A |
ohm/km |
0.190 |
0.167 |
0.151 |
0.139 |
0.130 |
0.123 |
| Zero impedance of cable |
| Cable XHO 03 |
ohm/km |
0.608 |
0.568 |
0.534 |
0.505 |
0.455 |
*** |
| Cable XHO 03 - A |
ohm/km |
0.659 |
0.607 |
0.564 |
0.528 |
0.473 |
0.425 |
| Maximum electric stress |
kV/mm |
5.8 |
5.6 |
5.4 |
5.3 |
5.1 |
4.9 |
| Earth fault current |
| Cable XHO 03 |
A/km |
207 |
223 |
237 |
250 |
273 |
*** |
| Cable XHO 03 - A |
A/km |
185 |
204 |
222 |
238 |
262 |
287 |
| Charging current |
A/km |
2.8 |
3.0 |
3.2 |
3.5 |
3.8 |
4.1 |
| Short-circuit current (1 sec): |
| - Conductor |
| Cable XHO 03 |
kA |
43.4 |
57.8 |
72.2 |
90.9 |
115.3 |
*** |
| Cable XHO 03 - A |
kA |
28.8 |
38.3 |
47.8 |
60.2 |
76.4 |
95.3 |
| - Metallic screen |
kA |
13.2 |
13.8 |
14.4 |
15.0 |
16.5 |
18.1 |
| Current carrying capacity: |
| Cables in ground |
| - Trefoil formation |
| Cable XHO 03 |
A |
575 |
655 |
735 |
825 |
910 |
*** |
| Cable XHO 03 - A |
A |
450 |
515 |
590 |
665 |
750 |
825 |
| - Flat formation (*) |
| Cable XHO 03 |
A |
570 |
630 |
695 |
760 |
810 |
*** |
| Cable XHO 03 - A |
A |
460 |
515 |
580 |
640 |
700 |
750 |
| Cables in air |
| - Trefoil formation |
| Cable XHO 03 |
A |
785 |
905 |
1035 |
1180 |
1330 |
*** |
| Cable XHO 03 - A |
A |
615 |
710 |
825 |
945 |
1085 |
1225 |
| - Flat formation (**) |
| Cable XHO 03 |
A |
790 |
910 |
1040 |
1175 |
1320 |
*** |
| Cable XHO 03 - A |
A |
620 |
720 |
830 |
950 |
1085 |
1220 |
(*) Distance between cables is equal to cable diameter.
(**) Cables are touching.
(***) 1000 mm2 is produced only with Aluminium conductor.
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