I. Structural of H07RN-F
(1) Conductor Layer
Material: Stranded annealed copper conductors (complying with IEC 60228 standards), designed with fine copper wires to ensure high conductivity and flexibility, suitable for frequent bending scenarios.
(2) Insulation Layer (EPR Ethylene Propylene Rubber)
Material Properties:
Electrical Performance: EPR features excellent insulation resistance and dielectric strength, suitable for medium and low-voltage cables (e.g., rated voltage 300/500V).
Weather & Heat Resistance: Resistant to UV, ozone aging, with a long-term operating temperature of 70℃~90℃, outperforming traditional neoprene rubber.
Flexibility: Maintains elasticity at low temperatures (temperature range: ~-40℃~+90℃), ideal for cold regions or frequent movement.
(3) Sheath Layer (CPE Chlorinated Polyethylene)
Material Properties:
Weather & Chemical Resistance:
Resistant to UV, ozone, and harsh weather, suitable for long-term outdoor use.
Oil-resistant, acid-alkali-resistant, and solvent-resistant (e.g., lubricants, fuel), superior to common PVC sheaths.
Mechanical Performance:
High abrasion resistance and tear resistance, adapted to mechanical friction or dragging scenarios.
Flame Retardancy: CPE itself has flame-retardant properties, and some products can meet flame-retardant grades (e.g., UL94 V-0).
Temperature Range: Operating temperature of ~-30℃~+80℃, resisting hardening at low temperatures and deformation at high temperatures.
II. Application of H07RN-F (EPR+CPE Structure)
Due to the properties of EPR and CPE materials, these cables are more suitable for high-weather resistance, chemical corrosion resistance, and complex environments:
(1) Industrial and Automation Fields
High-requirement mobile equipment: Such as drag chain cables for port cranes and metallurgical workshop cranes, needing to resist oil pollution, high temperatures (e.g., welding spatter in workshops), and frequent bending simultaneously.
Chemical equipment: Used as power or control cables in production lines exposed to acids, alkalis, or solvents.
(2) Outdoor and Special Engineering
New energy scenarios: Cables inside wind turbine towers and outdoor connection cables for solar photovoltaic panels, requiring resistance to UV, ozone, and extreme temperature differences.
Mining and infrastructure: Temporary power cables for mine roadways and tunnel construction, adapted to humid, dusty, and mechanically abrasive environments.
