Flame-retardant Communication Cable 5×2×0.5 ZR-HPVV Technical Analysis
I. Model Definition and Structure
ZR-HPVV‌：
ZR: Flame Retardant (compliant with GB/T 19666-2019 flame retardant standard)
HP: Solid polyolefin insulated with copper core (high stability for high-frequency signal transmission)
VV: Industrial Protective Sleeves (oil, acid and alkali resistant)
5×2×0.5‌：
5 pairs: Twisted pair count (supports parallel transmission of multiple signals).
2×0.5: Each pair contains 2 conductors (single conductor cross-sectional area 0.5mm², copper core diameter approx. 0.8mm).
Section II: Key Performance Parameters
Parameters Item Technical Specifications Standard Basis
Conductor Resistance ≤95Ω/km（20℃） GB/T 3956‌
Insulation with voltage resistance 1kV/min non-breakdown (thickness ≥ 0.4mm) GB/T 7594.2‌
Flame Retardancy Rating C Class (Bundled Combustion Test) GB/T 18380-2008‌
Operating Temperature -30°C to 70°C GB/T 13849‌
Bend Radius ≥8 times the outer diameter (dynamic laying) YD/T 1019-2013‌
Section 3: Application Scenarios
Industrial Communication System: Suitable for distribution lines with rated working voltage of 3kV and below, such as PLC control signal transmission.
Flame Retardant Requirement Locations: Indoor installations, conduit or cable trenches; must comply with bundle combustion test requirements.
Complex Environment: Oil-resistant and corrosion-resistant, suitable for harsh environments such as metallurgy and petrochemical industries.
Section 4: Certification and Laying Requirements
Mandatory Certification: Must pass GB/T 19666 flame-retardant test and MT 386 coal mine flame-retardant cable test.
Laying Specifications: Direct burial depth ≥1.2m, tension force ≤80% of short-term tensile strength (≤1500N).