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Fire Alarm Cables
Purpose:
Signal & life-safety circuits (fire survives)
Conductor:
Copper (Solid or Stranded, Class 1 / 2 / 5)
Insulation:
LSZH ,Mica tape + LSZH (Fire resistant) Sometimes XLPE + mica
Size:
0.5 mm² to 2.5 mm² (most common)
Up to 4 mm² (special)
Voltage:
300/500 V , 600/1000 V (fire-resistant types)
Temperature:
Working: 90°C
Fire survival:
750°C for 90 min (with mica) 950°C for 180 min (IEC 60331)
Short-circuit:
250°C
