Interfacial properties of XLPE/EPDM laminates

Kwang Suck Suh, Jin Ho Nam, Ji Hwan Kim, Kwang Cheol Ko, Sang Ok Han

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Interfacial properties such as space charge accumulation and breakdown characteristics in crosslinked polyethylene (XLPE)/ethylene propylene diene terpolymer (EPDM) laminates were investigated. Homocharge is observed in EPDM containing 1,4-hexadiene while heterocharge is observed in EPDM containing 5-ethylene-2-norbornene. Interfacial charge develops when the EPDM is laminated with XLPE. The polarity of this interfacial charge reverses at less than a few tens of hours heat treatment at 80°C. dc breakdown voltage shows a sequential change of an increase, a decrease and a slight increase as a function of heat treatment time, which holds true for both interfacial and volume breakdown voltages. A maximum breakdown voltage is observed at 20 to 24 h heat treatment. After long heat treatment, silicone grease used in the interface shows lower interfacial breakdown voltage than silicone oil for the dc case, which was attributed to the additives in the grease and the molecular weight of silicone molecules in oil and grease. Details of the results are given and their origins discussed.

Original languageEnglish
Pages (from-to)216-221
Number of pages6
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume7
Issue number2
DOIs
Publication statusPublished - 2000 Dec 3

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Terpolymers
Propylene
Laminates
Ethylene
Electric breakdown
Lubricating greases
Heat treatment
Silicones
Electric space charge
Polyethylenes
Molecular weight
Molecules

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Interfacial properties of XLPE/EPDM laminates. / Suh, Kwang Suck; Nam, Jin Ho; Kim, Ji Hwan; Ko, Kwang Cheol; Han, Sang Ok.

In: IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 7, No. 2, 03.12.2000, p. 216-221.

Research output: Contribution to journalArticle

Suh, Kwang Suck ; Nam, Jin Ho ; Kim, Ji Hwan ; Ko, Kwang Cheol ; Han, Sang Ok. / Interfacial properties of XLPE/EPDM laminates. In: IEEE Transactions on Dielectrics and Electrical Insulation. 2000 ; Vol. 7, No. 2. pp. 216-221.
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