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290/500kV Copper XLPE insulated corrugated Aluminum shielded 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
Conductor Screen: Semi-conductive tape+Semi-conductive Compound
Insulation: XLPE (Cross-linked Polyethylene)
Insulation Screen: Semi-conductive Compound
Wrapping: Semi-conductive water block tape
Metallic Screen: Corrugated aluminum sheath
Sheath: PE

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 62067, Power cables with extruded insulation and their accessories for rated voltages above 150 kV (U=170 kV) up to 500 kV.

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Conductor		Nominal insulation thickness	Insulation dia.	Al.sheath thickness	Nominal sheath thickness	Overall dia.	Approx.mass	DC resistance at 20℃	Capacitance at 20℃
Nominal cross section	Diameter	Nominal insulation thickness	Insulation dia.	Al.sheath thickness	Nominal sheath thickness	Overall dia.	Approx.mass	DC resistance at 20℃	Capacitance at 20℃
mm²	mm	mm	mm	mm	mm	mm	kg/km	Ω/km	μF/km
1×800	33.8	34	101.8	2.9	6	150	20393	0.0221	0.127
1×800	35	34	103	2.9	6	152	20772	0.0221	0.132
1×1000	39.2	33	105.2	3	6	154	23057	0.0176	0.143
1×1200	42	33	108	3	6	158	25068	0.0151	0.149
1×1400	46	32	110	3	6	160	27419	0.0129	0.161
1×1600	48.6	32	112.6	3.1	6	163	29679	0.0113	0.166
1×1800	52	31	114	3.2	6	165	32036	0.0101	0.177
1×2000	55.2	31	117.2	3.2	6	169	34476	0.009	0.184
1×2200	57.4	31	119.4	3.2	6	171	36318	0.0083	0.189
1×2500	61.5	31	123.5	3.3	6	175	39548	0.0073	0.197

Application and case display

FAQ

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

What is the operating temperature of the cable?

What is the application of Armored vs. Unarmored Cables?

What are the benefits of EPR material?

Why do cable prices vary significantly among suppliers within the same region?

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 application of Armored vs. Unarmored Cables?

Armored cables are suitable for use in hazardous environments, such as underground installations, areas with high moisture levels, and areas prone to mechanical damage. Unarmored cables are suitable for less demanding applications, such as inside walls or other protected locations.

How do you calculate the minimum bending radius of cables?

The bend radius refers to the curved shape in which an electrical cable can be bent or curved without sustaining damage. To determine the minimum bend radius for cables, apply the following formula: Minimum Bend Radius = Cable Outer Diameter×Cable Multiplier. For example, if the outer diameter of a cable is 20mm, its minimum bending radius would be 20mm×6 = 120mm. Conversely, if an armored cable has an outer diameter of 30mm, its minimum bending radius would be 30mm×12 = 360mm.

How long is the validity period of cold shrink cable accessories?

The validity period for most cold shrink cable accessories is typically 3 years from the date of manufacture, provided they are stored under recommended conditions. These conditions usually include controlled humidity and temperature ranges.

What is the length tolerance for cables?

The tolerance for the power cable is 0 to +0.5%. For the bare conductor, the tolerance is ±5%.

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Email: info@starsunelectric.com

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290/500kV Copper XLPE insulated corrugated Aluminum shielded Cable

Product Parameters

Application and case display

FAQ

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