87/161(170)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.Aluminum corrugated 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]	518	584	665	755	856	958	1099	1176	1323	1436	1544
Buried in duct		[A]	480	543	617	703	796	893	1027	1099	1239	1347	1451
In free air	Trefoil formation	[A]	581	661	757	864	984	1101	1274	1362	1525	1646	1765
In free air	Flat formation	[A]	648	742	859	992	1150	1312	1542	1676	1945	2167	2410

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	1.5	17.0	1.3	1.3	4.5	78	6.8	0.0754	0.15
300	CC	20.4	1.5	17.0	1.3	1.3	4.5	80	7.5	0.0601	0.16
400	CC	23.2	1.5	17.0	1.3	1.3	4.5	83	8.5	0.0470	0.18
500	CC	26.3	1.5	17.0	1.3	1.3	4.5	86	9.8	0.0366	0.19
630	CC	30.2	1.5	17.0	1.3	1.3	4.5	90	11.4	0.0283	0.21
800	CC	34.0	1.5	17.0	1.3	1.3	4.5	94	13.4	0.0221	0.22
1000	4S	38.7	1.5	17.0	1.3	1.3	4.5	99	15.6	0.0176	0.24
1200	4S	41.8	1.5	17.0	1.3	1.3	4.5	102	17.5	0.0151	0.26
1600	4S	48.3	1.5	17.0	1.3	1.3	4.5	108	21.6	0.0113	0.28
2000	5S	54.3	1.5	17.0	1.3	1.3	4.5	114	26.0	0.0090	0.31
2500	5S	62.0	1.5	17.0	1.3	1.3	4.5	120	31.0	0.0072	0.34