Main Advantages

1. Superior fire resistance with continuous power supply during fire emergencies Adopting NG-A flexible mineral-insulated composite structure, the cable features high fire resistance rating. It can maintain circuit integrity without open circuit, breakdown or short circuit under direct flame and high-temperature exposure in extreme fire conditions, delivering stable power supply for hours. It effectively ensures normal operation of critical equipment such as fire pumps, smoke exhaust fans and emergency lighting during fires, serving as the core guarantee cable for power distribution in high-rise buildings.
2. Flexible and bendable with high construction practicability Different from traditional rigid magnesium oxide mineral cables, this product adopts a flexible stranded structure. The cable is soft overall with a small bending radius and high fracture resistance. It adapts to complex construction scenarios including building ceilings, pipe gallery shafts, narrow cable wells and areas with dense bends. No special construction procedures are required, which greatly reduces construction difficulty, improves wiring efficiency and fits on-site standardized installation.
3. Halogen-free, safe and eco-friendly to reduce hazards in fire events The cable uses halogen-free, non-toxic and harmless mineral insulation and sheath materials. No toxic gas, corrosive fume or massive smoke is released during combustion. It avoids secondary pollution in fire incidents, preserves evacuation visibility and protects personal escape safety, fully complying with fire and environmental standards for super high-rises, commercial complexes, hospitals, metro and other high-end buildings.
4. Moisture-proof, corrosion-resistant and anti-ageing for complex working conditions The densely structured and stable mineral insulation layer provides excellent moisture-proof, waterproof, acid and alkali resistance. It can operate for long periods in harsh environments such as underground pipe galleries, cable trenches, damp basements and enclosed shafts. With outstanding high-temperature resistance, anti-ageing and oxidation resistance, it is not prone to degradation and damage in long-term service, extending service life and lowering later maintenance costs.
5. Stable electrical performance and reliable operation Constructed with high-purity oxygen-free copper conductor, it offers excellent conductivity, stable power transmission and low power loss. The integrated insulation structure has high mechanical strength, good voltage resistance, strong leakage and interference resistance, supporting stable full-load continuous operation. It boasts strong overload resistance and mechanical compression protection, ensuring round-the-clock safe and stable operation of building fire and regular low-voltage power distribution systems.

Technical Specification

Applications

NG-A(BTLY) flexible mineral insulated fire-resistant cable is a high-end fire power distribution cable specially for buildings. With flexible non-armored structure, it is suitable for refined wiring works in various buildings. It can be laid in indoor cable trays, trunkings and conduits, and run reliably for long time in damp basements, enclosed cable shafts, underground pipe galleries and cable trenches, meeting requirements for conventional indoor and concealed laying. Widely used in fire-critical buildings such as super high-rise residences, commercial complexes, office buildings, hospitals, schools, metro and tunnels. It supplies power for Class I and Class II fire loads including fire emergency lighting, fire pumps, smoke exhaust equipment and fire rolling shutters. It is the core fire-resistant cable specified in domestic fire acceptance standards.