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High Voltage Performance of Bulk and Amalgamated PE Insulation Systems: Part I. Space Charge Characteristics

High Voltage Performance of Bulk and Amalgamated PE Insulation Systems: Part I. Space Charge Characteristics
High Voltage Performance of Bulk and Amalgamated PE Insulation Systems: Part I. Space Charge Characteristics
The introduction of cable joints and optical repeaters into submarine telecommunication cable inevitably results in amalgamation regions in the polyethylene insulation. These amalgamation regions are known to increase the probability of high voltage breakdown, when compared with the bulk material. This increased risk has been attributed to the accumulation of space charge in the amalgamation regions. Measurement of the space charge accumulation, (using the PEA technique), and calculation of the resultant electric field distributions of both press moulded LDPE and injection moulded LDPE containing an amalgamation zone were conducted. The space charge dynamics are discussed, and the role of interfacial stress and Schottky injection on the space charge accumulation are detailed.
PE insulation, space charge, amalgamation, Schottky injection
0022-3727
3191-3196
Brown, M. A.
7c4d85d4-774a-4e0d-a613-a42887a05980
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Norman, P. A.
dd03c004-0f4e-4d60-838f-36594215eb05
Brown, M. A.
7c4d85d4-774a-4e0d-a613-a42887a05980
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Norman, P. A.
dd03c004-0f4e-4d60-838f-36594215eb05

Brown, M. A., Chen, G. and Norman, P. A. (2003) High Voltage Performance of Bulk and Amalgamated PE Insulation Systems: Part I. Space Charge Characteristics. Journal of Physics D: Applied Physics, 36, 3191-3196.

Record type: Article

Abstract

The introduction of cable joints and optical repeaters into submarine telecommunication cable inevitably results in amalgamation regions in the polyethylene insulation. These amalgamation regions are known to increase the probability of high voltage breakdown, when compared with the bulk material. This increased risk has been attributed to the accumulation of space charge in the amalgamation regions. Measurement of the space charge accumulation, (using the PEA technique), and calculation of the resultant electric field distributions of both press moulded LDPE and injection moulded LDPE containing an amalgamation zone were conducted. The space charge dynamics are discussed, and the role of interfacial stress and Schottky injection on the space charge accumulation are detailed.

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Published date: December 2003
Keywords: PE insulation, space charge, amalgamation, Schottky injection
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 258673
URI: http://eprints.soton.ac.uk/id/eprint/258673
ISSN: 0022-3727
PURE UUID: 12b2a5f0-8148-4357-906c-1261bd5079b3

Catalogue record

Date deposited: 05 Feb 2004
Last modified: 19 Jul 2019 22:42

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