Fire Alarm Power Cable ZR RVS NHRVS 2×1.0 2.5

Ordinary weak-current signal cables have insufficient load capacity and poor fire safety performance, unable to meet the power supply demands of fire alarm host, smoke exhaust equipment and emergency linkage devices. Low-grade fire cables adopt impure copper conductors with high resistance, which easily cause voltage drop, power insufficiency and equipment failure during long-distance power transmission. Non-twisted ordinary wires are susceptible to external electromagnetic crosstalk in dense electrical wiring environments, resulting in disordered fire system signals and false alarms. Common cables lack effective fire-resistant protection, prone to combustion and circuit breakage in fire accidents, leading to overall paralysis of fire alarm and linkage systems. Inferior insulating materials age and crack easily after long-term standby operation, causing leakage risks and hidden dangers for building fire safety. The ZR-RVS / NH-RVS Fire Alarm Power Cable thoroughly solves the above industry pain points. Adopting optimized 2-core symmetrical twisted structure, it effectively suppresses electromagnetic interference and signal distortion, ensuring synchronous stability of power supply and signal transmission. High-purity oxygen-free stranded copper conductor features ultra-low resistance, supporting high-load stable power transmission and avoiding long-distance voltage attenuation. Available in 2×1.0mm² conventional and 2×2.5mm² high-power specifications to fully cover fire system signal and power supply demands. ZR flame-retardant insulation achieves self-extinguishing and flame spread prevention; NH fire-resistant version adopts professional mica tape fire-resistant composite structure, which can maintain complete circuit conduction and normal equipment operation under high-temperature flame baking. Upgraded anti-aging and heat-resistant insulating sheath adapts long-term uninterrupted standby operation of fire systems, fully meeting national building fire protection acceptance standards.

This fire-grade RVS power cable supports diversified personalized customization for high-rise building fire alarm power supply, fire linkage equipment circuit, emergency lighting system, smoke exhaust fan control and public facility fire safety engineering projects. Professional double-twisted pair design optimizes anti-crosstalk and anti-interference performance, ensuring accurate signal feedback and stable power output of fire equipment. Dual safety grade design: ZR flame retardant grade prevents flame diffusion and secondary combustion; NH fire-resistant grade guarantees continuous circuit operation under fire high temperature to support emergency rescue work. High-flexibility stranded copper core supports repeated bending and concealed pipeline laying, adapting to complex indoor corner and tray wiring. Two mainstream specifications are optional: 2×1.0mm² for conventional signal and short-distance power supply, 2×2.5mm² for long-distance transmission and high-power fire linkage equipment. Color-coded insulation design simplifies on-site wiring identification and later circuit maintenance. Wear-resistant, heat-resistant and anti-aging insulating material extends service life for long-term standby fire circuits. According to project demands, we can customize fire protection grade, wire gauge, LSZH low-smoke halogen-free upgrade, insulation color and packaging specifications to meet refined fire electrical engineering standards.