Cables Facts and Figures

1.0 How to Select a Cable
2.0 Useful Electrical Formulae
3.0 Transport, Handling and Installation of Electric Cables
1.1 Load to be supplied
1.2 Permissible Voltage Drop
1.3 Prospective Fault Current
1.4 Environmental Conditions of Installation
1.4.1 Cables Laid Direct in the Ground
1.4.2 Cables Installed in Air
1.4.3 Cables installed in Ducts
1.4.4 Composite Cable Routes
1.4.5 Intermittent Operation
1.4.6 Solar Heating
2.1 Volt Drop
2.2 Charging Current
2.3 Per Unit System
2.4 Load Growth
2.5 Load Factor
2.6 Capacitor Voltage Rise
2.7 Load Sharing
2.8 Conductor Resistance
2.9 Lead Resistance
2.10 Wire Armour Resistance
3.1 Cables onWooden Drums
3.2 Cable Transportation
3.3 Cable Storage
3.4 Mechanical Forces on Cables during Installation
3.5 Pulling Cables through Pipes or Ducts
3.6 Preparation for Cable Laying
3.7 Backfilling and Reinstatement
3.8 Repairs to PVC Oversheaths
4.0 Paper Insulated and Lead Covered 6.35/11kV Cables
5.0 MediumVoltage XLPE Insulated, PVC Bedded, SWA, PVC sheathed 6.35/11kV Cables
6.0 LowVoltage PVC and XLPE insulated 600/1000V Power Cables
7.0 ElastomericTrailing Cables
8.0 Overhead Aluminium Conductors
9.0 Innovative products
4.1 Notes on impregnating compound
4.2 Moisture in Paper cables
4.3 Derating factors for non-standard conditions
4.4 Short circuit ratings for PILC cables
4.5 Earth fault ratings
5.1 Notes on XLPE insulation
5.2 Derating factors for non-standard conditions
5.3 Short circuit ratings for XLPE insulated 6.35/11kV cables
5.4 Earth fault current
6.1 Notes on PVC and XLPE insulation
6.2 Cable cross section
6.3 Derating factors for non-standard conditions
6.4 Short circuit ratings for PVC and XLPE insulated
600/1000V cables



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