Summary
Lightning strikes terminating in the vicinity of a cable route may result in high electric field stress across the cable sheath insulation, potentially leading to puncture of the sheath. The present report summarizes findings from a study on protection of buried HVDC cables by bare copper wires. In addition to evaluation of stresses on the HVDC cable sheath insulation, stresses on crossing third-party cables are also considered. Based on results of 3D FEM simulations of electric field stresses, it is concluded that the risk of damage to crossing cables is low.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | B1_11368_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Sweden |
| Study committees | |
| File size | 750 KB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
SIDENVALL Peter - I2G; DERNFALK Andreas - I2G; JEROENSE Marc - MarCable-consulting Sweden
