Rolling stock cable

Wires & Cables 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. 70 EN 50264-1 Smoke Density This specifies a test for determination of smoke density. The “ 3 metre cube test ” measures the generation of smoke from electric cables during fire. A light beam emitted from a window is projected across the enclosure to a photo cell connected to a recorder at the opposite window. The recorder is adjusted to register from 0% for complete obscuration to 100% luminous transmission. A 1 metre cable sample is placed in the centre of the enclosure and is applied with a fire. The minimum light transmission is recorded. The result is expressed as percentage of light transmitted. The specimen is deemed to pass this test if the value is greater than 60%. The higher the light transmittance, the less smoke emitted during a fire. EN 50264-1 Acidity 95% Visibility No Visibility (For example : EBXL - XLPO) (For example : PVC) Acidity Test This test specifies a method for the determination of degree of acidity of gases evolved during combustion of cables taken from the cable sample by measuring its pH and conductivity. The specimen is deemed to pass this test if the pH value is not less than 4.3 when related to 1 litre of water and conductivity is less than 10 When the HCl yield lies between 2mg/g and 5mg/g, a cable specimen can pass as per EN 50264-1 conditions. ʮ s/min.