Parameter Specification/Feature Standard
Conductor resistance ≤3.28 Ω/km (20℃) ASTM B8
Insulation resistance ≥50 MΩ·km (20℃) UL 1581
Shielding effectiveness ≥60 dB (30MHz-1GHz) EN 50289-1-2
Bending radius ≥10×outer diameter (dynamic laying) NEC Article 336
Oil resistance Pass UL 1277 Oil resistance test UL 1277
Flammability rating CM (UL)/FT4 (CSA) NEC/CSA C22.2 No.1277
Application scenarios
1. Industrial automation
Inverter control signal transmission (anti-EMI interference).
Servo motor encoder circuit (high frequency stability required).
Fire protection and security system
2. Fire alarm system (NPLF certification).
Emergency lighting power distribution (comply with 90-minute circuit integrity).
3. Outdoor and harsh environment
Solar power station DC side connection (SUN RES UV resistance).
Oil platform explosion-proof area wiring (oil resistant, corrosion resistant).
4. Transportation infrastructure
Tunnel lighting control (DIR direct laying capability).
Railway signal equipment (moisture resistance/direct burial requirements).
Selection considerations
1. Shield grounding
The shield layer needs to be single-ended grounded to avoid ground loop interference (it is recommended to use a copper tape grounding clamp).
2. Installation conditions
Anti-rod sheath is required for direct burial (optional).
Avoid laying parallel to power cables (minimum spacing ≥30 cm).
3. Comparison of alternatives
Comparison items Advantages of this model Disadvantages of similar models
Weather resistance SUN RES anti-UV formula Ordinary PVC sheath is prone to aging (lifespan shortened by 50%)
Flexibility Stranded conductor (Str BC) is suitable for dynamic bending Single-core hard wire (such as THHN) is prone to breakage
Environmental adaptation Wet/Dry dual environment certification Only dry environment cables are limited
4. International certification
USA: UL 1277 + NEC Article 336 (bridge laying specifications).
Canada: CSA C22.2 No. 1277.
EU: Need to meet the additional CPR (EN 50575) fire protection classification (recommended to select Class Cca-s1b, d1)
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