Journal ArticleDOI
Thermal and mechanical properties of EPR and XLPE cable compounds
Xiaoguang Qi,Steven A. Boggs +1 more
TLDR
This article showed that the mechanical and thermal properties of EPR cable dielectrics are very stable with temperature and showed that EPR polymer is essentially amorphous and does not suffer from the very large thermal expansion of TRXLPE as its crystallites melt.Abstract:
This paper shows that the mechanical and thermal properties of EPR cable dielectrics are very stable with temperature. Commercially available EPR and TRXLPE cable dielectrics typically have about the same thermal conductivity, although the thermal conductivity of TRXLPE above the melting point of the crystallites drops below that of the EPR dielectrics. The mechanical properties of EPR cable dielectrics are much more stable with temperature than those of the TRXLPE, as EPR polymer is essentially amorphous so that EPR cable dielectrics do not suffer from the very large thermal expansion of TRXLPE as its crystallites melt.read more
Citations
More filters
Journal ArticleDOI
Polymeric insulation materials for HVDC cables: Development, challenges and future perspective
TL;DR: In this article, the authors reviewed the history and development of polymeric HVDC cables and summarized the key technical problems in extruded HVDc cables and pointed out that two key issues should be solved.
Journal ArticleDOI
Electrical treeing behavior at high temperature in XLPE cable insulation samples
TL;DR: In this paper, the behavior of electrical trees formed in XLPE cable insulation at elevated temperatures was investigated, and it was found that temperature and voltage level had a pronounced effect on the process of electrical tree formation.
Journal ArticleDOI
The Evolution of Medium Voltage Power Cables
TL;DR: A survey on the state-of-the-art and the technological progress in medium-voltage (MV) power cables for distribution systems is presented in this paper, which is characterized by a changeover from the conventional lapped-paper, paper-insulated laminated (PIL), polyvinyl chloride (PVC), crosslinked polyethylene (XLPE) to tree-retardant cross-linked polymethylene (TRXLPE), and ethylene propylene rubber (EPR).
Journal ArticleDOI
Physico-chemical study of thermally aged EPDM used in power cables insulation
TL;DR: In this paper, the authors used thermal aging in oven for different temperatures ranging from 80 to 140 °C to identify the main structure changes of the material before and after thermal aging and found that for pristine EPDM specimens and those subjected to thermal aging at 80 and 100 °C, there was no influence of these aging temperatures on the chemical structure of the materials.
Journal ArticleDOI
Comparisons of MWCNTs and acidified process by HNO3 on thermal stability by DSC and TG-FTIR
TL;DR: In this article, the authors analyzed the thermokinetic parameters of different heating rates by differential scanning calorimetry (DSC) and thermogravimetric analyzer (TG), and then compared thermal decomposition energy parameters under various conditions by well-known kinetic equations.
References
More filters
Book ChapterDOI
Materials Selection for Mechanical Design
David Cebon,Michael F. Ashby +1 more
TL;DR: The design process engineering materials and their properties materials selection charts materials selection without shape selection of material and shape materials processing and design sources of material property data materials, aesthetics and industrial design forces for change case studies as mentioned in this paper.
Book
Materials Selection in Mechanical Design
Michael F. Ashby,David Cebon +1 more
TL;DR: The design process engineering materials and their properties materials selection charts materials selection without shape selection of material and shape materials processing and design sources of material property data materials, aesthetics and industrial design forces for change case studies.
Journal ArticleDOI
A Critical Comparison of XLPE-and EPR for Use as Electrical Insulation on Underground Power Cables
TL;DR: In this article, a summary of previously published technical data is presented with commentary, and the purpose is to offer reliable information for use in material selection and cable design in a form which is convenient for reference and use.