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Covered conductor
The document outlines the characteristics and considerations of covered conductor systems, which consist of conductors insulated for safety against accidental contact. It details handling precautions, the failure rates of different conductor types, and various components and accessories such as connectors and clamps used in these systems. Additionally, it highlights an integrated insulator for lightning protection that is currently under development.
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Covered conductor
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- 2. 2 COVERED CONDUCTOR Covered conductorsconsist of a conductor surrounded by a covering made of insulating material as protection against accidental contacts with other covered conductors and with grounded parts such as tree branches, etc.– As BS EN 50397-1: 2006.
- 3. CAUTION 3 Conductors mustbe handled with care Only accessories designed and approved for the conductor may be used Arc protection devices must be used on lines vulnerable to over voltages Substations must have tripping earth-fault protection devices and alarming secondary devices
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- 5. OCCUPY 40 %LESS SPACE THAN BARE LINES
- 6. 6 INSULATING MATERIAL: XLPE (Cross-LinkedPolyethylene) HDPE (High Density Polyethylene)
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- 8. OTHER DIFFERENT TYPES OFCOVERED CONDUCTOR SYSTEM
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- 11. Bare conductor -4.5 faults / 100 km Covered conductor - 0.9 faults / 100 km FAILURE RATE Ref: EA Technology on Covered Conductor System for Distribution
- 12. BARE COVERED CONDUCTORSPACER CABLE AERIAL BUNDLED CABLE RELIABILITY COST
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- 14. COVER ALUMINIUM SLEEVE MIDSPANJOINT FOR COVERED CONDUCTOR
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- 16. PARTS Body – GlassReinforced Thermoplastic Bolt & Nut – Galvanized Steel Piercing Teeth – Tinned Copper Cap – Glass Reinforced Thermoplastic Shearing Head – Glass Reinforced Thermoplastic INSULATION PIERCING CONNECTOR
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- 23. HIGH VOLTAGE AERIAL BUNDLEDCONDUCTOR FITTING
- 24. MIDSPAN JOINT FORBARE MESSENGER STRAIGHT THROUGH JOINT T-JOINT
- 25. CABLE TRAY TENSION CLAMPSUSPENSION CLAMP
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- 27. INTEGRATED INSULATOR –ARC PROTECTION AND LIGHTNING ARRESTER (IIAPLA) Protects lines up to 33 kV against Direct Lightning and Back Flashover. It performs the function of Composite Insulator and a Lightning Arrestor simultaneously. In-built Rapid Arc Quenching System THIS PRODUCT IS UNDER DEVELOPMENT IN SUPREME.