Polymer insulated power cable

Polymer insulated power cable

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The name cables is given to long current-carrying devices that carry their own insulation and present an earthed outer surface. In this context, overhead lines for example, are not considered as cables. Power cables have a coaxial structure: essentially, they comprise a central current-carrying conductor at line voltage, an insulation surrounding the conductor and an outer conductor at earth potential. AC cables are generally installed as a three-phase system and hence the outer conductor should only carry fault and loss currents.

Inspec keywords: power cables; earthing; power overhead lines; polymers

Other keywords: overhead lines; three phase system; earthed outer surface; insulation surrounding; loss currents; carry fault; outer conductor; polymer insulated power cable; carrying conductor; long current-carrying devices; line voltage; coaxial structure

Subjects: Power cables

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