64/110(123)kV CU/XLPE /SAS/PE (or PVC,LSHF) 240 ~ 2500 MM2

The basic material for XLPE is polyethylene, which is chemically transformed to cross-linked polyethylene (XLPE) through the cross-link reaction of organic peroxides. The cross-link method for polyethylene was developed in the United States during the 1950’s and has since been continuously developed for application to higher voltages. Higher voltages are increasingly being required, and the 500kV XLPE cables have already been commercialized.

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Design & Construction

1.Conductor

2.Conductor screen

3.XLPE insulation

4.Insulation screen

5.Semiconducting tape

6.Smooth aluminum sheath

7.PE or PVC outer sheath (Graphite coating or extruded semiconducting)

Application

Used for underground power transmission lines; laid on cable ladder, tray, buried direct in the ground or in duct in the ground

CURRENT RATING, SINGLE CIRCUIT

Nominal area		[mm²]	240	300	400	500	630	800	1000	1200	1600	2000	2500
Direct buried in ground		[A]	520	587	668	759	861	963	1106	1185	1333	1447	1556
Buried in duct		[A]	479	540	616	700	796	894	1025	1102	1243	1353	1458
In free air	Trefoil formation	[A]	585	665	763	871	992	1109	1287	1337	1541	1663	1781
In free air	Flat formation	[A]	659	755	874	1010	1170	1336	1573	1707	1981	2208	2456

TECHNICAL DATA

Nominal cross- sectional area	Shape of conductor	Nominal Diameter of conductor	Nominal Thickness of conductor screen	Nominal Thickness of Insulation	Nominal Thickness of Insulation screen	Nominal Thickness of aluminum sheath	Nominal Thickness of Outer sheath	Approx. Overall diameter of cable	Approx. Weight of cable	Maximum DC resistance at 20^oC	Capacitance
mm²		mm	mm	mm	mm	mm	mm	mm	kg/m	Ω/km	µF/km
240	CC	18.1	1.2	14.0	1.0	1.3	3.5	62	5.0	0.0754	0.17
300	CC	20.4	1.2	14.0	1.0	1.3	3.5	64	5.7	0.0601	0.18
400	CC	23.2	1.2	14.0	1.0	1.3	3.5	67	6.6	0.0470	0.20
500	CC	26.3	1.2	14.0	1.0	1.3	4.0	71	8.0	0.0366	0.21
630	CC	30.2	1.2	14.0	1.0	1.3	4.0	75	9.5	0.0283	0.23
800	CC	34.0	1.2	14.0	1.0	1.3	4.0	79	11.4	0.0221	0.25
1000	4S	38.7	1.2	14.0	1.0	1.3	4.0	83	13.6	0.0176	0.28
1200	4S	41.8	1.2	14.0	1.0	1.3	4.5	87	15.5	0.0151	0.30
1600	4S	48.3	1.2	14.0	1.0	1.3	4.5	94	19.6	0.0113	0.33
2000	5S	54.3	1.2	14.0	1.0	1.3	4.5	100	23.7	0.0090	0.36
2500	5S	62.0	1.2	14.0	1.0	1.3	4.5	114	29.5	0.0072	0.40