XLPE Insulated DC High-Voltage Submarine Cable

Applications

These submarine cables are used for power transmission to offshore islands, oil platforms or to cross-rivers and lakes. Cable design based on the mayor national or international standards e.g. VDE, IEC and ICEA or according to customers design and standards .

Construction

Conductor:Copper conductor, water blocked.
Conductor Screening: Extruded semi-conductive compound.
Insulation: XLPE.
Insulation Screening: Extruded semi-conductive compound.
Separator: Swelling tape.
Core Sheath1: Lead Sheath.
Core Sheath2: PE sheath.
Bedding: Bedding layer.
Armour: Galvanized steel wires filled with bitumen compound.
Serving: Polypropylene yarn.

Electrical Data:

127/220(245) kV

Nominal Cross Section Area	Capacitance	Inductance	Charging Current per phase @50Hz
mm²	μF/km	mH/km	A/km
500	0.14	1.42	5.8
630	0.16	1.40	6.4
800	0.17	1.37	6.9
1000	0.19	1.35	7.4
1200	0.20	1.33	7.8
1400	0.21	1.32	8.2
1600	0.22	1.31	8.6

160/275(300) kV

Nominal Cross Section Area	Capacitance	Inductance	Charging Current per phase @50Hz
mm²	μF/km	mH/km	A/km
500	0.14	1.42	6.8
630	0.16	1.40	7.7
800	0.17	1.37	8.3
1000	0.18	1.35	9.0
1200	0.19	1.33	9.5
1400	0.20	1.32	10.0
1600	0.21	1.31	10.4

200/345(362) kV

Nominal Cross Section Area	Capacitance	Inductance	Charging Current per phase @50Hz
mm²	μF/km	mH/km	A/km
630	0.14	1.40	8.8
800	0.15	1.37	9.7
1000	0.17	1.35	10.7
1200	0.18	1.33	11.1
1400	0.19	1.32	11.6
1600	0.20	1.31	12.1

230/400(420) kV

Nominal Cross Section Area	Capacitance	Inductance	Charging Current per phase @50Hz
mm²	μF/km	mH/km	A/km
630	0.13	1.40	9.6
800	0.15	1.37	10.7
1000	0.16	1.35	11.7
1200	0.18	1.33	12.9
1400	0.19	1.32	13.5
1600	0.19	1.31	14.1

Dimension and Weight:

127/220(245) kV

Nominal Cross Section Area	Nominal Conductor Diameter	Nominal Insulation Thickness	Nominal Diameter Over Insulation	Nomanal Lead Sheath Thickness	Nominal Overall Diameter	Weight
mm²	mm	mm	mm	mm	mm	kg/m
500	26.2	24.0	77.6	2.9	111.0	29.3
630	29.8	23.0	79.2	3.0	112.8	31.2
800	33.7	23.0	83.1	3.1	117.5	34.5
1000	37.9	23.0	87.3	3.1	121.9	37.7
1200	41.2	23.0	90.6	3.1	125.2	40.4
1400	44.4	23.0	93.8	3.1	128.6	43.2
1600	47.4	23.0	96.8	3.1	131.8	46.0

160/275(300) kV

Nominal Cross Section Area	Nominal Conductor Diameter	Nominal Insulation Thickness	Nominal Diameter Over Insulation	Nomanal Lead Sheath Thickness	Nominal Overall Diameter	Weight
mm²	mm	mm	mm	mm	mm	kg/m
500	26.2	26.0	81.6	3.0	115.2	31.1
630	29.8	24.0	81.2	3.0	114.8	31.8
800	33.7	24.0	85.1	3.1	119.5	35.2
1000	37.9	24.0	89.3	3.1	123.9	38.4
1200	41.2	24.0	92.6	3.1	127.4	41.6
1400	44.4	24.0	95.8	3.1	130.6	44.4
1600	47.4	24.0	98.8	3.1	133.8	47.2

200/345(362) kV

Nominal Cross Section Area	Nominal Conductor Diameter	Nominal Insulation Thickness	Nominal Diameter Over Insulation	Nomanal Lead Sheath Thickness	Nominal Overall Diameter	Weight
mm²	mm	mm	mm	mm	mm	kg/m
630	29.8	28.0	89.2	3.1	123.4	35.2
800	33.7	27.0	91.1	3.1	125.9	37.5
1000	37.9	26.0	93.3	3.1	128.1	39.9
1200	41.2	25.0	94.6	3.1	129.4	42.0
1400	44.4	25.0	97.8	3.1	132.8	44.9
1600	47.4	25.0	100.8	3.1	135.8	47.7

230/400(420) kV

Nominal Cross Section Area	Nominal Conductor Diameter	Nominal Insulation Thickness	Nominal Diameter Over Insulation	Nomanal Lead Sheath Thickness	Nominal Overall Diameter	Weight
mm²	mm	mm	mm	mm	mm	kg/m
630	29.8	32.0	98.2	3.1	132.8	38.8
800	33.7	30.0	98.1	3.1	133.1	40.2
1000	37.9	29.0	100.3	3.1	135.3	42.6
1200	41.2	27.0	99.6	3.1	134.6	44.0
1400	44.4	27.0	102.8	3.1	138.0	46.9
1600	47.4	27.0	105.8	3.1	141.0	49.7