Home > High Voltage Power Cables > 64/110kV XLPE insulated Copper wire shielded HDPE sheathed cable

64/110kV XLPE insulated Copper wire shielded HDPE sheathed cable

Application

High voltage power cables are designed for transmitting electrical power at voltages above 35kV. These cables are crucial for power transmission and distribution networks, connecting power plants to substations and distributing electricity across vast distances.

Construction

Conductor:Copper Or Aluminum
Conductor Screen:·Semi-conductive tape+Semi-conductive Compound
Insulation:XLPE (Cross-linked Polyethylene)
Insulation Screen:Semi-conductive Compound
Wrapping:Semi-conductive water blocking tape
Metallic Screen:Copper wires
Tape:Aluminum plastic composite
Sheath:HDPE (High Density Polyethylene)

Main Characteristics

Operating Temperature: -30°C to +90°C
Short Circuit Temperature: +250°C
Overload Temperature: +130°C (100h per year maximum)
Minimum Installation Temperature: -20°C

Specification

IEC 60840,Power cables with extruded insulation and their accessories for rated voltages above 30 kV(U=36 kV)up to 150 kV(U=170 kV).

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Conduactor		Nominal insulation thickness	Insulation dia.	Copper-wire screen cross section	Nominal sheath thickness	Overall dia.	Approx.mass		Max.D.C.Resistance of Conductor at 20℃		Capacitance at 20℃
Nominal cross	Diameter	Nominal insulation thickness	Insulation dia.	Copper-wire screen cross section	Nominal sheath thickness	Overall dia.	CU	AL	CU	AL	Capacitance at 20℃
mm²	mm	mm	mm	mm	mm	mm	kg/km		Ω/km		μF/km
1×240	18.4	19	59.2	95	4	76.1	6765	5305	0.0754	0.125	0.13
1×300	20.6	18.5	60.4	95	4	77.3	7386	5543	0.0601	0.1	0.141
1×400	23.4	17.5	61.2	95	4	78.1	8133	5769	0.047	0.0778	0.167
1×500	26.6	17	63.4	95	4	80.3	9227	6195	0.0336	0.0605	0.182
1×630	30	16.5	65.8	95	4.5	82.7	10585	6706	0.0283	0.0469	0.201
1×800	34	16	68.8	95	4.5	85.7	12309	7353	0.0221	0.0367	0.213
1×800	35	16	71.1	95	4.5	88	12587	7631	0.0221	0.0367	0.224
1×1000	39	16	75.1	95	4.5	93	14849	8631	0.0176	0.0291	0.252
1×1200	42.6	16	78.7	95	5	97.6	16924	9561	0.0151	0.0247	0.268
1×1400	45.2	16	81.3	95	5	100.2	18909	10309	0.0129	0.0212	0.282
1×1600	48.5	16	84.6	95	5	103.5	20861	11086	0.0113	0.0186	0.295
1×1800	50.8	16	86.9	95	5	104.8	22840	11703	0.0101	0.0165	0.306
1×2000	54	16	90.1	95	5	109	25034	12660	0.009	0.0145	0.322
1×2200	57.4	16	93.5	95	5	112.4	27083	13472	0.0083	0.0135	0.335
1×2500	61.2	16	97.3	95	5	116.2	30053	14586	0.0072	0.0127	0.35

Application and case display

FAQ

What is the application of Armored vs. Unarmored Cables?

What is the validity period for the offer of cable?

How do you calculate the minimum bending radius of cables?

Longitudinal Water Blocking vs. Lateral Water Blocking?

What are the weight limits for different types of packages?

Armored vs. Unarmored Cables?

Armored cables are ideal for direct burial and laying underground, offering protection against environmental factors. Unarmored cables are unsuitable for burial or use in other challenging applications and installations.

What temperature can high-temperature resistant cables reach, and what are their application scenarios?

High-temperature resistant cables are engineered to function within a wide temperature range, spanning from -50°C to +260°C, depending on the cable's specific type and construction. Silicone rubber-insulated cables can withstand temperatures up to 180°C, whereas fluoroplastic insulated cables are designed to endure temperatures as high as 200°C to 260°C over extended periods. They are widely used in steel metallurgy, power, petrochemicals, aerospace, and industrial kilns for power transmission and equipment control in high-heat environments.

What is the operating temperature of the cable?

The operating temperature of a cable is determined by the insulation and sheathing material. PVC has a range of -15°C to 70°C, XLPE can reach up to 90°C, while silicone rubber can handle temperatures from -60°C to 180°C.

What is the purpose of a metallic shield in MV and HV cables?

Medium and high voltage power cables, typically those in circuits exceeding 2kV, usually feature a shield layer made of copper or aluminum tape. Similar to their use in low voltage cables, metallic wires and tapes are employed to prevent electromagnetic interference. These shields effectively neutralize or significantly diminish the field currents surrounding the conductor or core. The capacitive and inductive charging currents induced under normal operating conditions are subsequently grounded by the metallic screen.

How Do Water-Blocking Cables Work?

Water-blocking cables are essential for ensuring reliable operation in environments with high levels of moisture or frequent water contact. These cables employ water-blocking techniques to effectively prevent water ingress, protecting them from damage and prolonging their lifespan.