Henan Crosslink Cable Co., Ltd.
Aerial Insulated Conductor
Category:
Product
Overhead Cable
Key words:
Aerial Insulated Conductor (Aerial Insulated Conductor) is a kind of power transmission line designed for outdoor overhead laying, using insulation layer wrapped around the conductor, compared with the traditional bare conductor (such as LGJ) has a higher degree of safety and environmental adaptability. It is suitable for urban distribution networks, rural power grid renovation, industrial and mining enterprises power supply and other scenarios, which can effectively reduce the risk of short-circuit and electric shock, and allows compact installation in complex environments.
1. Product structure
| Structural Layer | Material/Characteristics |
|---|---|
| Conductor | -Aluminum (JL): Economically commonly used (e.g. JL/G1A-240). -Aluminum alloy (JKLHYJ): high strength, corrosion resistant. -Copper (JKTRY): high conductivity, used in special occasions. -Steel core aluminum stranded (JKLGYJ): enhanced tensile strength, suitable for large span. |
| Insulation | -PE (Polyethylene): ordinary weatherproof type. -XLPE (cross-linked polyethylene): high temperature resistance (90℃), anti-aging, mainstream choice. -PVC (polyvinyl chloride): low cost, but gradually phased out. |
| Shield (optional) | Used for 10kV and above lines to reduce corona discharge. |
| Water-resistant layer (optional) | Moisture resistant design, suitable for high humidity areas. |
2. Product Features
✅ High safety
Insulation layer protection to avoid direct contact leading to electric shock or short circuit.
Can be laid close to buildings and trees, reducing safety distance requirements.
✅ Strong weather resistance
XLPE insulation is resistant to ultraviolet rays, high and low temperatures (-40℃~90℃).
Resistant to salt spray, acid and alkali corrosion, suitable for coastal and industrial areas.
✅ Excellent mechanical properties
Steel core aluminum strand structure (such as JKLGYJ) has high tensile strength, suitable for large span and heavy ice area.
Aluminum alloy conductor (JKLHYJ) is creep resistant and does not deform in long-term use.
✅ Flexible installation
Can be laid overhead without cable trench or pipeline, reducing construction cost.
Supports compact wiring, saving space.
✅ Long life
XLPE insulation life expectancy ≥ 25 years, PE insulation ≥ 15 years (depending on the environment).
3. Main models and specifications
| Model | Name | Voltage Rating | Applicable Scene |
|---|---|---|---|
| JKLYJ | Aluminum core cross-linked polyethylene insulated overhead line | 0.6/1kV~10kV | Urban distribution network, rural power grid |
| JKLGYJ | Steel core aluminum cross-linked polyethylene insulated overhead line | 10kV~35kV | Large span, heavy load area |
| JKTRY | Soft copper core polyethylene insulated overhead line | 0.6/1kV | Mobile equipment, temporary power supply |
| JKLHYJ | Aluminum alloy core cross-linked polyethylene insulated overhead line | 10kV and below | Highly corrosive environment (chemical industry, coastal) |
Commonly used cross-sectional area: 16mm², 35mm², 70mm², 120mm², 240mm², 400mm² (can be customized according to requirements).
4. Technical parameters
Rated voltage: 0.6/1kV, 10kV, 35kV.
Conductor resistance: in line with GB/T 1179-2017 standard.
Insulation resistance: ≥1000MΩ-km (20℃).
Allowable working temperature:
XLPE insulation: long-term 90℃, short-circuit 250℃ (5s).
PE insulation: long-term 70 ℃, short-circuit 150 ℃ (5s).
Bending radius: ≥10 times the outer diameter of the cable.
5. Application fields
Urban power distribution network: power supply in streets and neighborhoods, avoiding faults caused by tree contact.
Rural power grid renovation: improve safety and reduce electrocution accidents.
Industrial and mining enterprises: corrosive environments such as chemical zones and mining areas.
Temporary power supply: flexible wiring for construction sites and activity places.
New energy access: power pooling and transmission of photovoltaic and wind farms.
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