HEAVY METAL FREE FLAME RETARDANT PVC COMPOUND CLASS 70C (PVC/A) RECOMMENDED FOR INSULATION OF ELECTRICAL WIRES AND CABLES (BWF) AND ENERGY CABLES IN GENERAL CLASS 70°C (PVC/A, PVC/D AND PVC/F). ALSO RECOMMENDED FOR JACKET OF ENERGY CABLES CLASS 70°C (ST1) AND CLASS 90°C (ST2).
FOR OPTIMIZING ITS PROPERTIES IS SUGGESTED TO PROCESS THIS MATERIAL USING SIEVES 60 MESH OR CLOSER AND TEMPERATURES ABOUT 160°C/165°C IN THE FIRT ZONE, 165°C/175°C IN THE SECOND ZONE AND 180°C/185°C IN THE OTHER ZONES, INLCUDING THE EXTRUDER HEAD. SCREW WITH MIXERS AND WATER REFRESHING INTO THE CORE CAN HELP THE MATERIAL PROCESSABILITY.
THE ABOVE SUGGESTIONS ARE JUST A STARTING POINT AND ADJUSTMENTS CAN BE NECESSARY DEPENDING ON THE TYPE AND CONDITIONS OF THE EQUIPAMENT. Norms: DIRETIVA 2000/53-2011/65/UE; NBR 6251:2012, ST2
NBR 7288, PVC/A / ST1; NBR NM 247-3, PVC/A; NBR NM 247-5, PVC/D, PVC/F, ST5