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Home Products Overhead insulated wire

Steel core insulated overhead cable

Home Products Overhead insulated wire

Steel core insulated overhead cable

[ Overhead insulated wire ]

Steel core insulated overhead cable

[ Product Overview ]

1kV overhead insulated conductors (rated voltage 0.6/1kV) are mainly used for urban distribution networks, rural power grid transformation, and overhead transmission lines, and are suitable for overhead laying of poles. Compared with bare conductors, they have the advantages of safe insulation, strong weather resistance, and convenient installation, which can reduce conflicts between trees and wires and improve power supply reliability.

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Product Details

Economical

Safe and Reliable

High Insulation Strength

Easy Installation

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Product Categories

model	name	conductor	Insulation Materials	Shielding	Features
JKLYJ	Aluminum core cross-linked polyethylene insulated wire	aluminum	XLPE	none	Economical, suitable for general environment
JKYJ	Copper core cross-linked polyethylene insulated wire	copper	XLPE	none	High conductivity, large current carrying capacity

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Voltage Level

1kv overhead insulated conductor

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Technical Parameters

General electrical parameters

Rated voltage:

0.6/1kV

Conductor Material:

Aluminum (Al), copper (Cu), aluminum alloy (AAAC)

Conductor cross-section range:

Aluminum core: 16~400mm²; Copper core: 10~300mm²

Insulation Material:

XLPE (cross-linked polyethylene) or HDPE (high-density polyethylene)

Insulation Thickness:

1.0~2.5mm (depending on the section and standard)

Outer diameter range:

6.0~25.0mm (depending on the cross section and insulation thickness)

Long term working temperature:

-40°C ~ +90°C（XLPE）

Short circuit withstand temperature:

250°C（5s）

Mechanical properties

The tensile strength of the conductor is clearly specified. The aluminum core must reach or exceed 95MPa, and the copper core must be no less than 210MPa.

Regarding the elongation at break, the aluminum conductor must not be less than 15%, and the standard for copper conductor is higher, requiring it to reach 25% or above.

When the conductor is bent, the allowable bending radius must be no less than 10 times its own diameter.

The standard setting for maximum use tension is 20% of the rated tensile strength (RTS).

In general, various performance indicators of wires, from tensile strength, elongation at break, to allowable bending radius and maximum tensile force, have strict and specific requirements to ensure their performance and safety.

Current carrying capacity reference (ambient temperature 30°C, XLPE insulation)

When the conductor cross-section is 50 square millimeters, the current carrying capacity of the aluminum core conductor is 180 amps and the current carrying capacity of the copper core conductor is 230 amps.

For a conductor with a cross-section of 95 mm2, the current carrying capacity of an aluminum core can reach 250 amps, while the current carrying capacity of a copper core is even higher, at 320 amps.

When the conductor cross-section increases to 185 square millimeters, the aluminum core conductor can carry a current of 380 amps, and the current carrying capacity of the copper core conductor is further increased to 480 amps.

Overall, with the same cross-section, the current carrying capacity of copper core conductors is higher than that of aluminum core conductors, and as the cross-section increases, the current carrying capacity of both shows an increasing trend.

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Product Features

Safety insulation

Adopt XLPE/HDPE insulation layer, with a withstand voltage of ≥3.5kV/5min, to prevent short circuit caused by branches, birds, etc. The insulation layer is UV-resistant and aging-resistant, with an outdoor service life of ≥25 years.

High mechanical strength

Aluminum core conductor tensile strength ≥95MPa, copper core ≥210MPa, suitable for large span overhead (recommended span ≤50m). Optional steel core reinforced type (JKLYJ/Q), tensile strength increased by 30%.

Environmental adaptability

Working temperature -40°C~+90°C, suitable for cold and high temperature areas. Resistant to salt spray, acid and alkali (suitable for coastal and industrial areas).

Economical and energy-saving

The cost of aluminum core conductor is 40% lower than that of copper core, which is suitable for long-distance power transmission. The insulation layer reduces corona loss and improves transmission efficiency.

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Application Scenarios

Urban distribution network:

Overhead lines on electric poles (such as JKLYJ-185mm²).

Rural power grid:

Rural power grid transformation, power supply in fields (light JKLYJ/Q-50mm²).

Industrial Area:

Factory overhead power distribution (copper core JKYJ-120mm²).

Coastal Areas:

Corrosion-resistant aluminum alloy conductor (JKLHYJ).

Windy Areas:

Reinforced conductors (such as steel core aluminum stranded wire + insulation layer).

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Installation Guidelines

Use ceramic or composite insulators for fixing, and the distance between wires should be ≥0.3m.

To avoid friction with trees and buildings, it is recommended to install a protective sleeve.

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Storage Conditions

Keep in a dry and ventilated place, avoid direct sunlight, storage period ≤ 12 months.

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Product Packaging

15 years from the date of manufacture (installed and used in accordance with specifications).

Overhead insulated wire

Parallel clustered aluminum core insulated overhead cable

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After-sales Service

After signing the contract, our company will conduct on-site inspections of the product’s usage environment, provide product technical data sheets, installation manuals, and answer any customer inquiries. We offer high-quality configuration plans based on product characteristics and the environment.

We guarantee timely supply upon receiving the delivery notice, ensuring the product quality meets customer requirements. Our professional after-sales team will transport the products to the specified location and assist with acceptance and storage instructions.

Before installation, we provide technical training and installation guidance to ensure the product meets customer environment and technical performance requirements.

Our after-sales service department offers 24/7 support. We will respond to customer issues promptly and provide solutions. For on-site service, within the city, technicians will arrive within 3 hours, and for out-of-city locations, within 6 hours, to provide excellent technical support.

Our products come with a 5-year warranty, with a lifespan of no less than 40 years under normal use. During the warranty period, we will provide free repair or replacement for any product-related issues and assume all associated responsibilities.

Technical Service

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Material Supply and Transportation Service

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Installation Guidance

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Issue Resolution and On-site Service Response Time

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Warranty Period and Quality Assurance Commitment

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Product