High Voltage Armoured Power Cable

A high voltage cable, also known as a EHV cable, is a type of electrical cable designed to carry high voltage electricity.

It is used for transmitting electrical power over long distances or between different points in an electrical power network.

Construction

Corrugated Aluminum Sheath

Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV
Conductor:
Copper/Aluminum Class 2
Core:
single core
Cross Sectional Area:
240mm2~2500mm2
Insulation:
XLPE
Inner Sheath:
Aluminum Sheath
Outer Sheath:
PE (or PVC)

Lead Sheath

Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV
Conductor:
Copper/Aluminum Class 2
Core:
single core
Cross Sectional Area:
240mm2~2500mm2
Insulation:
XLPE
Inner Sheath:
Lead Sheath
Outer Sheath:
PE (or PVC)

Copper Wire Shield

Voltage:
38/66kV, 64/110kV, 76/132kV, 127/220kV
Conductor:
Copper/Aluminum Class 2
Core:
single core
Cross Sectional Area:
240mm2~2500mm2
Insulation:
XLPE
Screen:
Copper Wire Screen
Outer Sheath:
PE (or PVC)

Application

High voltage cables are commonly used for applications such as interconnection between transmission lines, underground distribution systems and substations.

Feature

The construction of cables varies depending on the voltage level and the specific application.

For lower voltage levels, the cable consists of solid or stranded conductors with multiple layers of insulation and protective material added around them.

For higher voltage applications, additional layers of insulation and shielding are added to improve the electrical performance and safety of the cable.

38/66 kV Corrugated Aluminum Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
95	1.8	2.4	51	4.4	5.3	0.15
120	1.8	2.5	53	4.8	5.9	0.16
150	1.8	2.6	55	5.2	6.5	0.16
185	1.8	2.6	57	5.7	7.3	0.18
240	1.9	2.7	60	6.5	8.5	0.19
300	1.9	2.8	62	7.2	9.2	0.2
400	2	3	66	8.1	10.4	0.22
500	2.1	3	69	8.9	11.9	0.24
630	2.2	3.1	73	9.9	13.6	0.26
800	2.3	3.3	78	11	15.9	0.29
1000	2.4	3.4	81	12.2	18.2	0.31

64/110kV Corrugated Aluminum Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
150	1.5	2.8	74	3.9	4.8	0.13
185	1.6	2.9	76	4.2	4.8	0.14
240	1.8	3	79	4.7	6.1	0.15
300	1.7	3	81	5	6.7	0.16
400	1.7	3.1	84	5.5	7.7	0.17
500	1.7	3.2	88	6	8.9	0.18
630	1.8	3.3	92	6.8	10.5	0.2
800	1.8	3.5	97	7.6	12.4	0.22
1000	1.9	3.6	102	8.6	14.5	0.23
1200	2	3.7	110	10	17.3	0.26

72/132kV Corrugated Aluminum Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
240	1.7	3.1	84	5.2	6.6	0.14
300	1.7	3.2	86	5.5	7.3	0.15
400	1.7	3.3	90	6	8.3	0.16
500	1.8	3.4	93	6.7	9.6	0.17
630	1.8	3.5	97	7.4	11.1	0.18
800	1.9	3.6	102	8.4	13.1	0.2
1000	2	3.8	107	9.4	15.3	0.22

127/220kV Corrugated Aluminum Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
400	2	3.8	108	8.5	10.8	0.13
500	2.1	3.9	112	9.3	12.2	0.14
630	2.1	4	116	10.1	13.8	0.15
800	2.2	4.1	121	11.2	16	0.16
1000	2.3	4.3	126	12.3	18.3	0.17
1200	2.3	4.4	132	13.7	20.9	0.19
1400	2.4	4.5	137	14.9	23.2	0.2
1600	2.5	4.6	141	16.1	25.5	0.21
2000	2.6	4.8	149	18.2	30.1	0.23

38/66kV Lead Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
95	1.8	2.4	51	4.4	5.3	0.15
120	1.8	2.5	53	4.8	5.9	0.16
150	1.8	2.6	55	5.2	6.5	0.16
185	1.8	2.6	57	5.7	7.3	0.18
240	1.9	2.7	60	6.5	8.5	0.19
300	1.9	2.8	62	7.2	9.2	0.2
400	2	3	66	8.1	10.4	0.22
500	2.1	3	69	8.9	11.9	0.24
630	2.2	3.1	73	9.9	13.6	0.26
800	2.3	3.3	78	11	15.9	0.29
1000	2.4	3.4	81	12.2	18.2	0.31
1200	2.5	3.5	89	14	21.3	0.36
1400	2.6	3.6	93	15.3	23.6	0.38
1600	2.7	3.8	97	16.5	26	0.4
2000	2.9	3.9	103	19.1	31	0.44

64/110kV Lead Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
150	2.1	2.9	66	7.1	8.4	0.13
185	2.1	3	68	7.6	9.3	0.14
240	1.9	2.7	60	6.5	8.5	0.19
300	1.9	2.8	62	7.2	9.2	0.2
400	2	3	66	8.1	10.4	0.22
500	2.1	3	69	8.9	11.9	0.24
630	2.2	3.1	73	9.9	13.6	0.26
800	2.3	3.3	78	11	15.9	0.29
1000	2.4	3.4	81	12.2	18.2	0.31
1200	2.5	3.5	89	14	21.3	0.36
1400	2.6	3.6	93	15.3	23.6	0.38
1600	2.7	3.8	97	16.5	26	0.4
2000	2.9	3.9	103	19.1	31	0.44

72/132kV Lead Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
400	2.9	4	99	15.9	18.3	0.13
500	2.9	4.1	103	16.9	19.9	0.14
630	3	4.2	106	18.2	22	0.15
800	3.1	4.3	110	19.7	24.6	0.16
1000	3.3	4.4	115	21.6	27.6	0.17
1200	3.4	4.6	121	23.7	31	0.19
1400	3.5	4.7	125	25.4	33.7	0.2
1600	3.5	4.8	128	26.5	36	0.21
2000	3.7	5	135	29.7	41.6	0.23

127/220kV Lead Sheath Cable Parameters

Nominal Area	Alu. sheath thickness (Minimum)	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	mm	kg/m	kg/m	μF/km
400	2	3.8	108	8.5	10.8	0.13
500	2.1	3.9	112	9.3	12.2	0.14
630	2.1	4	116	10.1	13.8	0.15
800	2.2	4.1	121	11.2	16	0.16
1000	2.3	4.3	126	12.3	18.3	0.17
1200	2.3	4.4	132	13.7	20.9	0.19
1400	2.4	4.5	137	14.9	23.2	0.2
1600	2.5	4.6	141	16.1	25.5	0.21
2000	2.6	4.8	149	18.2	30.1	0.23

38/66kV Copper Wire Shield Cable Parameters

Nominal Area	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	kg/m	kg/m	μF/km
95	2.3	48	2.2	3	0.15
120	2.4	50	2.5	3.5	0.16
150	2.4	51	2.8	4.1	0.16
185	2.5	53	3.1	4.8	0.18
240	2.6	56	3.7	5.7	0.19
300	2.7	59	4.3	6.3	0.2
400	2.8	62	4.9	7.1	0.22
500	2.9	65	5.3	8.2	0.24
630	3	69	5.9	9.6	0.26
800	3.2	73	6.6	11.3	0.29
1000	3.3	77	7.3	13.2	0.31
1200	3.4	84	8.4	15.6	0.36
1400	3.5	89	9.2	17.4	0.38
1600	3.6	92	9.8	19.3	0.4
2000	3.8	99	11.3	23.2	0.44

64/110kV Copper Wire Shield Cable Parameters

Nominal Area	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	kg/m	kg/m	μF/km
150	2.8	63	3.6	4.9	0.13
185	2.9	64	4	5.6	0.14
240	2.9	67	4.6	6.6	0.15
300	3.1	70	5.3	7.2	0.16
400	3.2	73	5.9	8.1	0.17
500	3.3	76	6.4	9.3	0.18
630	3.4	80	7	10.7	0.2
800	3.5	84	7.7	12.5	0.22
1000	3.6	88	8.5	14.4	0.23

72/132kV Copper Wire Shield Cable Parameters

Nominal Area	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	kg/m	kg/m	μF/km
240	3.1	72	5	7	0.14
300	3.2	74	5.7	7.6	0.15
400	3.3	78	6.3	8.6	0.16
500	3.4	81	6.8	9.7	0.17
630	3.5	85	7.5	11.2	0.18
800	3.7	89	8.3	13	0.2
1000	3.8	93	9.1	15	0.22
1200	3.9	100	10.3	17.5	0.24

127/220kV Copper Wire Shield Cable Parameters

Nominal Area	Outer sheath thickness (Nominal)	Overall Diameter (Approx.)	App. Weight (Aluminium)	App. Weight (Copper)	Approx. Capacitance
mm2	mm	mm	kg/m	kg/m	μF/km
400	3.9	94	8.7	11	0.13
500	3.9	97	9.3	12.2	0.14
630	4.1	101	10	13.8	0.15
800	4.2	105	10.9	15.7	0.16
1000	4.3	109	11.8	17.7	0.17
1200	4.4	115	13	20.3	0.19
1400	4.5	120	13.9	22.2	0.2
1600	4.6	123	14.8	24.2	0.21
2000	4.8	130	16.5	28.4	0.23