ASTM Standard Aerial Bundled ABC Power Cable 15kV 35kV For Overhead Distribution Line
APPLICATION
Screened MV ABC cables are specialized power transmission solutions combining medium-voltage (MV) capabilities with the structural advantages of Aerial Bunch Cables (ABC). Their applications include:
- Medium-Voltage Distribution Networks
- Aerial Power Infrastructure
- Industrial Power Supply
- Renewable Energy Projects
CONSTRUCTION
- Conductor: Circular Compacted Stranded H68 Aluminium ( Class 2)
- Conductor Screen:Extruded Semi-conductive Layer
- Insulation:XLPE
- Insulation Screen:Extruded Semi-conductive Layer
- Metallic Screen:Copper wire screen or copper tape screen
- Outer Sheath:HDPE
- Support Conductor:Galvanized steel wires
CHARACTERISTIC
- Voltage rating: 19/33kV up to 35kV
- Normal operation 90°C.
- Emergency over load conditions 130°C.
- Short circuit conditions 250°C.
SPECIFICATION
| NO.Cores X
Nominal Cross Section | Phase Conductor | Messenger Suspension Unit | Continuous Current Rating
at 300C Ambient Temp
|
| Stranding | Nominal Sectional Area | Stranding | Nominal Sectional Area | Breaking Load |
| No.×mm² | No.×mm | mm2 | No.×mm | mm2 | KN | A |
| 3X50 + 1X50 | 19/1.78 | 50 | 7/3.0 | 50 | 60 | 165 |
| 3X150 + 1X50 | 37/2.25 | 150 | 7/3.0 | 50 | 60 | 315 |
| 3X185+ 1X70 | 37/2.52 | 185 | 7/3.57 | 70 | 91 | 355 |
| 3X70+1X50 | 19/2.14 | 70 | 7/3.15 | 50 | 62 | 250 |
| 3X150 +1X50 | 37/2.25 | 150 | 7/3.15 | 50 | 62 | 370 |
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FAQ
What does 35kV ABC cable mean?
It refers to Aerial Bundled Cable designed for 35kV medium-voltage distribution systems, featuring multiple insulated conductors bundled together with messenger wires for overhead installation
What insulation materials are used?
Typically XLPE (Cross-linked Polyethylene) insulation rated for 90°C continuous operation, providing superior thermal stability and dielectric strength compared to low-voltage ABC cables
What's the maximum span length?
Standard designs allow 100-150m spans depending on wind/ice load conditions, with reinforced variants supporting up to 200m spans through high-strength aluminum alloy messenger
Does it require lightning protection?
Yes, shielded versions incorporate concentric neutral conductors or metallic screens complying with IEC 60502-2 for surge protection in exposed installations
Can it be installed in coastal areas?
Special anti-corrosion versions with weather-resistant XLPE compound and tinned copper screens are available for salt-laden environments
What's the bending radius requirement?
Minimum 12×cable diameter during installation (e.g., 480mm for 40mm diameter cable) to prevent insulation damage
How does it handle short-circuit currents?
Rated for 250°C for 5 seconds during short circuits, with copper screen variants achieving higher fault current capacity than aluminum screens
Is jointing different from underground cables?
Yes, requires specialized aerial joints with UV-resistant covers and tension-resistant mechanical design for field installation
What maintenance is required?
Periodic infrared thermography to detect hotspots, plus visual inspection for tree/wildlife damage in forested areas
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