BS 5467 Power cable

Property General PVC 70°C FRLS PVC 70°C HFFR XLPE (Chemical Curing) Heat ageing at 80°C for 7 days 80°C for 7 days 80°C for 7 days 135°C for 7 days 158°C for 7 days 158°C for 7 days Variation in Tensile strength & elongation at break after ageing. ±20% ±20% ±20% ±25% ±15% ±15% Hot deformation Max 50% 50% 50% 50% <25% <25% Heat shock test Result At 150°C for 1 hr shall not crack at 200°C for 1 hr insulation cracks At 150°C for 1 hr shall not crack at 200°C for 1 hr insulation cracks At 150°C for 1 hr shall not crack at 200°C for 1 hr insulation cracks At 150°C for 1 hr shall not crack at 200°C for 1 hr insulation cracks At 240°C for 3 hrs shall not crack At 240°C for 3 hrs shall not crack Shrinkage Max. 4% 4% 4% 4% 2% 0.50% Operating temp. 70°C 70°C -40°C to 90°C -45°C to 125°C Short circuit temp. 160°C 160°C 280°C & 300°C 280°C & 300° Soldering iron resistance Insulation melts and emmits smoke Insulation melts and emmits smoke Insulation melts Melts Reasonably Resistant Resistant 90°C -15°C to 125°C 250°C 160°C Thermal properties of EBXL 125°C cables are superior and conventional PVC, FRLS, HFFR & XLPE-90°C stand no comparison. THERMAL PROPERTIES FIRE PROPERTIES Smoke density max. > 80 % 60% 20% NA <10% <10% Toxicity Index High High <5 >10 <4 <4 Acid gas Emmission Max. >25% 20% Nil NA Nil Nil Flammability Melt and Drip Melt and drip Melt and drip Melt and Drip Do not melt or drip Do not melt or drip Flame propagation High High Moderate High Fire properties of EBXL XLPO cables stands tall compared with the PVC, FRLS, HFFR & XLPE cables. Very low High From the above comparison it is evident that in every respect Electron Beam Cured Zero Halogen Polyolefin Cables shows better performance compared to PVC based cables. 90°C 90°C Hence it is proposed to go in for new generation high technology, indigenously manufactured EBXL wires and cables. The details given above are for guidance only and actual results may vary marginally from different sources. EBXL - XLPO 0 12 5 C EBXL - XLPE 0 12 5 C Wires & Cables EBXL XLPE LT POWER CABLES www.siechem.com All information given are in good faith.Siechem's liability is only to replace the defective portion of cables provided the same is mutually established as manufacturing defects within the guarantee period as agreed in writing and Siechem shall not be liable for any compensation or damages. Siechem reserves the right to revise any of the above specifications without prior intimation. Subject to Chennai Jurisdiction. 45