Assessing and Quality Tests of New PVC Electrical Cables Outer Sheath by Accelerated Thermal Ageing

M’hamed Beriache; Djelloul Saïh Merzouk; Nor Azwadi Che Sidik

Authors

M’hamed Beriache aboratory of Rheology and Mechanics, Department of Mechanical Engineering, Faculty of Technology, Hassiba Benbouali University of Chlef, B.P 78C, Ouled Fares Chlef 02180, Algeria
Djelloul Saïh Merzouk Department of Mechanical Engineering, Faculty ofTechnology, Hassiba Benbouali University of Chlef, B.P 78C, Ouled Fares Chlef 02180, Algeria
Nor Azwadi Che Sidik Malaysia–Japan International Institute of Technology (MJIIT), University Teknologi Malaysia Kuala Lumpur, Jalan Sultan Yahya Petra, 54100 Kuala Lumpur, Malaysia

Keywords:

Poly (vinyl chloride) , PVC , cables , outer sheath , ageing , insulation , breakdown

Abstract

In Algeria, XLPE and PVC are the most widely used materials in cable insulation industries. The severe climate conditions in Algeria, plus tremendous factors in stressing cables insulations and shorten their lifetime. This study presents results of a tested material (PVC ST2 IRIS) on medium and low voltage cable outer sheath using different experimental techniques, especially; elongation at break (EAB), hot stretching test, Thermal shock test and weight loss method and the thermo-mechanical properties to determine how valid and safe are the proposed outer sheath materials used in cables manufacturing. The obtained results show that, the mechanical properties after accelerated thermal aging are affected by less than 9% with those before aging. These results are conformed to the standard CEI recommendations. The findings of the present experimental work show that the new tested (PVC ST2 IRIS) material passed all the approval mechanical tests successfully, and has approved to be marketed and operated in practice.