Home > High Voltage Power Cables > 76/132kV Copper XLPE insulated corrugated Aluminum shielded Cable

76/132kV 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 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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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
1×300	20.6	19.5	62.4	2	4	88.8	8809	0.0601	0.1328
1×400	23.4	19	64.2	2	4	90.6	9715	0.047	0.1465
1×500	26.6	19	67.4	2	4.5	94.8	11232	0.0336	0.1565
1×630	30	18.5	69.8	2	4.5	97.2	12666	0.0283	0.1717
1×800	34	18	72.8	2	4.5	100.2	14483	0.0221	0.1859
1×800	35	18	75.1	2	4.5	102.5	15072	0.0221	0.1991
1×1000	39	18	79.1	2.3	5	111.1	17770	0.0176	0.2156
1×1200	42.6	18	82.7	2.3	5	114.7	19821	0.0151	0.2283
1×1400	45.2	18	85.3	2.3	5	117.3	21893	0.0129	0.2411
1×1600	48.5	18	88.6	2.3	5	120.6	23954	0.0113	0.252
1×1800	50.8	18	90.9	2.3	5	123.3	26391	0.0101	0.261
1×2000	54	18	94.1	2.3	5	126.5	28535	0.009	0.2737
1×2200	57.4	18	97.5	2.3	5	129.9	30703	0.0083	0.2809
1×2500	61.2	18	101.3	2.3	5	133.9	33926	0.0072	0.2953

Application and case display

FAQ

What is the application of Armored vs. Unarmored Cables?

What is the operating temperature of the cable?

What are the benefits of EPR material?

What is the length tolerance for cables?

What is the service life of cables?

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.

Is a flame-retardant cable also fire resistant?

No. A flame-retardant cable is not the same as a fire-resistant cable. A flame-retardant cable is designed to restrict the spread of fire by inhibiting combustion. Fire-resistant cables, on the other hand, maintain circuit integrity and continue to function for a specified time under defined fire conditions.

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 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 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.