Five hundred homes had their power supplies cut when a hot air balloon collided with high voltage cables.
High and low voltage underground cables from below enter the terminal compartments directly.
The station is served by very high voltage cables underground along Totteridge Valley.
Each high voltage cable creates an electric field around itself, in the same way as any live electrical conductor.
The final product of the tunnel also included a 12-megawatt voltage cable, pumps for pumping underground waters, an oil pipe, and permanent lighting.
The effects of PD within high voltage cables and equipment can be very serious, ultimately leading to complete failure.
Roxtec has designed bespoke products which seal low and high voltage cables as they pass through a wall or deck.
Low voltage cables are further divided into power or control cables as each single cable is designed to deal with specific applications.
In that case special high voltage cables for DC are built.
An additional compartment houses mine services such as high voltage cables and pipes for transfer of water, compressed air or diesel fuel.