Low Smoke Halogen Free B1 Flame Retardant Flexible Mineral Insulated Fireproof Cable, 5 cores × 150 mm², rated voltage 0.6/1 kV. Standard: Manufactured in accordance with GB/T 34926 (flexible mineral insulated cables, or equivalent); B1 burning-behavior classification per GB 31247; flame retardant and fire-resistant performance per GB/T 19666. Applications: Fire-critical power supply in high-occupancy public buildings — emergency systems, fire-fighting and evacuation circuits where B1-grade fire performance is required. Characteristics: Flexible mineral insulation provides superior fire resistance, maintaining circuit integrity under fire; B1 flame retardant and LSZH materials minimize smoke and toxic gas; flexible for installation in complex building routes. Technical parameters: 5 cores × 150 mm² copper conductor, rated voltage U0/U 0.6/1 kV, AC.