Fire Resistant Cable

BTTRZ x50mm²+1x25mm² Mineral Insulated Fire Resistant Copper Sheathed Cable for Emergency Power Cable Designation & Meaning Code Meaning B Fixed wiring cable (Class B — building wire/power cable) T Copper conductor (Tong = copper) T Copper sheath (Tong = copper) R Flexible (Rou = flexible) Z Heavy duty (Zhong = heavy) 4×50 mm² + 1×25 mm² Four 50 mm² phase cores + one 25 mm² earth core (5-core: 3P+1N+1PE) Construction: Copper conductors, mineral insulation (magnesium oxide or

NG-A BTLY 4x35+1x16mm2 Mineral Insulated Fire Resistant Aluminum Sheath Cable for Emergency Cable Designation & Meaning Code Meaning NG-A New Generation A-class fire-resistant (Chinese designation) (BTLY) Building wire, Thin copper conductor, Lightweight Y— alternative naming convention indicating: Copper conductor + Aluminium sheath + XLPO/LSZH insulation + LSZH sheath 4×35 mm² + 1×16 mm² Four 35 mm² phase/neutral cores + one 16 mm² earth core (5-core: 3P+1N+1PE) Constructio

Super Fire Cable BTTRZ 4x185mm²+1x150mm² Mineral Insulated 0.6/1kV Fire Resistant Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×185 mm² + 1×150 mm² Four power cores 185 mm² + one protective earth core 150 mm² (5-core, 4+1 configuration) Construction: Flexible

Ultra Fire Cable BTTRZ 4x150mm²+1x120mm² Mineral Insulated 0.6/1kV Fire Resistant Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×150 mm² + 1×120 mm² Four power cores 150 mm² + one protective earth core 120 mm² (5-core, 4+1 configuration) Construction: Flexible

Fire Substation Cable 4+1 Core 120mm²+1x95mm² BTTRZ Fire Resistant Mineral Insulated Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×120 mm² + 1×95 mm² Four power cores 120 mm² + one protective earth core 95 mm² (5-core, 4+1 configuration) Construction: Flexible

Large Fire Cable BTTRZ 4x95mm²+1x70mm² Mineral Insulated 0.6/1kV Fire Resistant Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×95 mm² + 1×70 mm² Four power cores 95 mm² + one protective earth core 70 mm² (5-core, 4+1 configuration) Construction: Flexible

Heavy Duty Fire Cable BTTRZ 4x70mm²+1x50mm² Mineral Insulated 0.6/1kV Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×70 mm² + 1×50 mm² Four power cores 70 mm² + one protective earth core 50 mm² (5-core, 4+1 configuration) Construction: Flexible mineral

Hospital Critical Cable BTTRZ 4x35mm²+1x16mm² Mineral Insulated Fire Resistant Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×35 mm² + 1×16 mm² Four power cores 35 mm² + one protective earth core 16 mm² (5-core, 4+1 configuration) Construction: Flexible mineral

0.6/1kV Mineral Insulated Cable BTTRZ 4x25mm²+1x16mm² Fire Resistant Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×25 mm² + 1×16 mm² Four power cores 25 mm² + one protective earth core 16 mm² (5-core, 4+1 configuration) Construction: Flexible mineral-insulated

Smoke Detector Cable 4+1 Core 10mm² BTTRZ Fire Resistant Mineral Insulated Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×10 mm² + 1×6 mm² Four power cores 10 mm² + one reduced protective earth core 6 mm² (5-core, 4+1 configuration) Construction: Flexible

4+1 Core BTTRZ 4x16mm²+1x10mm² Mineral Insulated Fire Resistant Cable 0.6/1kV Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×16 mm² + 1×10 mm² Four power cores 16 mm² + one reduced protective earth core 10 mm² (5-core, 4+1 configuration) Construction : Flexible

Fire Resistant Cable BTTRZ 4x50mm²+1x25mm² Mineral Insulated 0.6/1kV Technical Datasheet — BTTRZ 0.6/1 kV 4×50 mm² + 1×25 mm² Cable Designation & Meaning Code Meaning BTTRZ B = Wiring cable (fixed installation); T = Copper conductor (flexible); T = Copper sheath (corrugated welded tube); R = Flexible; Z = Heavy-duty (mineral insulated) 0.6/1 kV Rated voltage U₀/U = 0.6/1 kV; Uₘ = 1.2 kV 4×50 mm² + 1×25 mm² Four power cores 50 mm² + one reduced protective earth core 25 mm² (5

BTTRZ 0.6/1kV 4x50mm²+1x25mm² Fire-resistant Cable for Industrial Emergency Feeders BTTRZ 0.6/1kV 4×50 mm² + 1×25 mm² Flexible Mineral Insulated Fire-Resistant Cable Model note: BTTRZ is the Chinese enterprise-standard designation for a copper-conductor, mica-tape mineral insulated, corrugated (rolled) copper-sheath flexible fireproof cable . Equivalent IEC/GB family names: YTTW / RTTZ / BTTW . This 4×50+1×25 mm² size is a 5-core 3P+N+PE ​ configuration (4 phase/line cores of