ANALISIS PERUBAHAN SIFAT MEKANIS KEKUATAN TARIK DAN KEMULURAN MATERIAL PVC INSULATION 104 NATURAL DALAM PROSES PRODUKSI KABEL CU/PVC (NYA) 4 MM²

Helen Twomay Sianturi (Program Studi Matematika, Fakultas Sains, Institut Teknologi Sumatera)
Werry Febrianti (Program Studi Matematika, Fakultas Sains, Institut Teknologi Sumatera)

MATHunesa: Jurnal Ilmiah Matematika
Vol. 14 No. 02 (2026)

This study aims to analyze the effect of the cable production process on the mechanical properties, namely tensile strength and elongation, of PVC 104 Natural Insulation material for CU/PVC (NYA) 4 mm² cables. As a preliminary step, a Shapiro-Wilk normality test was conducted on the difference data (setelah-sebelum) to validate the use of parametric statistical methods. The results showed that the difference data for both variables were normally distributed, allowing the analysis to proceed using a Paired T-Test at a significance level of The t-test results indicated that the production process significantly increased the kuat tarik ( ) and significantly decreased the elongation ( ). This statistically valid conclusion indicates that the production process makes the Insulation material stronger but less flexible