The prediction of flame retardant of LSZH optical cable using a small-scale flame test by Cone-calorimeter

摘要

As modern industry are requiring and now deploying more environment-friendly and safer optical fiber cable (hereafter OFC) to indoor/outdoor optical transmission system, lots of cable designs have been presented in the market already and they are developing another models with more improved properties. Those, until now, introduced products are focused on improving flame retardancy and suppression of smoke generation and most of them fully meet international standards. Even though those products meet international standards, more and more new products are under development and are introduced. The main goal of this paper is based on predicting flame retardancy of OFC by knowing the function of char that was formed over Low Smoke Zero Halogen (hereafter LSZH) OFC's outer sheath to flame retardancy of OFC[1][2][3]. So, the function of char over LSZH sheath was deeply studied to determine the degree of flame retardancy of OFC. And small-scale flame testing was also studied to make prediction of flame retardancy of OFC design possible before manufacturing.