The influence of the water on water absorption and density of XLPE cable insulation

Author

Nikolajevic, S.V.

Author_Institution

Electr. Power Distribution Co., Belgrade, Yugoslavia

Volume

13

Issue

2

fYear

1998

fDate

4/1/1998 12:00:00 AM

Firstpage

297

Lastpage

303

Abstract

This paper presents the results of a continuing investigation into effect of water on water absorption and density of crosslinked polyethylene (XLPE). The experimental set up was made for the following XLPE cable insulations: steam and dry cured with water tree retardant crosslinked polyethylene (TR-XLPE) and without water tree retardant crosslinked polyethylene (natural XLPE). During tests, the tap water was injected (1) into the cable conductor with cable ends closed, (2) into the cable conductor with cable ends opened, and (3) into the metallic screen with cable ends opened. The XLPE cable insulation together with the water present in the cable was subjected to electrical stress and heating. The results were analyzed theoretically and experimentally. The aim of this paper is to present the results of the influence of the water on water absorption and density of various kinds of XLPE cable insulation in different service conditions

Keywords

XLPE insulation; absorption; insulation testing; power cable insulation; power cable testing; water; XLPE cable insulation density; cable conductor; closed cable ends; crosslinked polyethylene; dry cured XLPE; electrical heating; electrical stress; metallic screen; natural XLPE; opened cable ends; steam cured XLPE; tap water; water absorption; water tree retardant crosslinked polyethylene; Absorption; Cable insulation; Conductors; Polyethylene; Resistance heating; Retardants; Stress; Testing; Trees - insulation; Water heating;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.660893

Filename

660893