Indoor, Construction, Building
UL CSA Electrical Twu Wire

2.5mm2 4mm2 Flat Twin Cable Red and Black Copper Wire

8AWG,10AWG,12AWG,14AWG
ISO9001, CE, CCC, RoHS, UL CSA


Product Overview:


Product: Fire-Resistant Twin Copper Cable (Red & Black)

This flat twin cable is engineered for critical life safety systems. Featuring a copper conductor, a fire-resistant mica tape layer, and Low Smoke Zero Halogen (LSZH) insulation, it is designed to maintain circuit integrity and minimize hazardous emissions during a fire.

Key Applications:

  • Fire alarm and extinguishing systems
  • Sprinkler control panels
  • Emergency exit lighting
  • Essential circuits in high-rises, hotels, hospitals, and public transit.

Core Specifications:

Safety Test: Withstands 3.5kV for 5 minutes.

Sizes: 2.5mm² & 4mm² (Standard stranded), 1.0mm² & 1.5mm² (Flexible)

Rated Voltage: 0.6/1 kV

Temperature Range: Operates from -15°C to +90°C

Why Choose US?

  1. Advanced Manufacturing: We operate three plants with 12 specialized workshops, equipped with state-of-the-art machinery from leading international suppliers (e.g., Niehoff, Troster, Maillefer, SKET).
  2. Comprehensive Quality Assurance: Our integrated quality control system is certified to ISO 9001, ISO 14001, and OHSAS 18001, with product approvals from TÜV, VDE, UL, CE, and more.
  3. Extensive Product Portfolio: We offer a complete solution across various cable types, including Power Cables, ABC Cables, Control Cables, Solar Cables, and specialized wires.
  4. Expert Service & Support: Our skilled engineering and sales team provides OEM/ODM services, technical support, and competitive pricing, ensuring a reliable partnership.

Product Range Summary:

TypeDescriptionApplicationTemp Rating
BV/BLVPVC Insulated WireFixed indoor/conduit installations70°C
BV-90Heat-resistant PVC InsulatedHigh-temperature environments90°C
BVRFlexible PVC InsulatedApplications requiring flexibility70°C
BVV SeriesPVC Insulated & SheathedMechanical/moisture protection70°C
RV SeriesFlexible ConnectorsMobile equipment & appliances70°C

Company Capabilities:

Advanced Manufacturing:

  • Three production facilities with 3,048 employees including 206 engineers
  • State-of-the-art imported production lines from Germany, Finland, France, and Spain
  • Precision quality control with SIKORA X-RAY 8000 measuring systems

Quality Assurance:

  • Certified to ISO 9001, ISO 14001, and OHSAS 18001
  • Product certifications include TUV, VDE, UL, CE, SAA, and BS

Comprehensive Product Range:

  • Complete cable solutions from LV to EHV power cables
  • Specialized cables including submarine, solar, fire-rated, and renewable energy cables
  • Building wires, control cables, and communication cables

Customer Service:

  • OEM/ODM services available
  • Expert export engineering team
  • Competitive pricing with reliable quality assurance
  • Comprehensive technical support and friendly service

We provides complete wiring solutions with advanced manufacturing capabilities and stringent quality control, ensuring optimal performance and safety for all building applications.

Product Variants Summary:


Product Type Summary

Type / ModelDescriptionPrimary ApplicationMax. Operating Temp.
BV / BLVPVC Insulated Wire (Cu/Al)Fixed wiring indoors, in conduits, etc.70°C
BV-90Heat Resistant PVC Insulated WireHigh-temperature environments & fixed installations90°C
BVRPVC Insulated Flexible WireFixed installations requiring conductor flexibility70°C
BVV / BLVVPVC Insulated & Sheathed Round WireFixed lays requiring mechanical & moisture protection (air, underground)70°C
BVVB / BLVVBPVC Insulated & Sheathed Flat WireSame as BVV, with flat profile for space-constrained applications70°C
RV / RVB / RVSPVC Insulated Flexible ConnectorsLight-duty movable equipment, appliances, power tools, and lighting70°C
RVVPVC Insulated & Sheathed Flexible CableGeneral-purpose flexible connections for light and common applications70°C

This product line offers reliable and versatile wiring solutions for a broad spectrum of residential, commercial, and industrial electrical applications.


Technical Data Tables

Table 1-1: Maximum DC Resistance at 20°C (Ω/km)

Cross-Section (mm²)162535507095120150
Copper (Non-Tinned)1.150.7270.5240.3870.2680.1930.1530.124
Copper (Tinned)1.160.7340.5290.3910.2700.1950.1540.126
Aluminum1.911.200.8680.6410.4430.3200.2530.206
Cross-Section (mm²)1852403004005006308001000
Copper (Non-Tinned)0.09910.07540.06010.04700.03660.02830.02210.0176
Copper (Tinned)0.1000.07620.06070.04750.03690.02860.02240.0177
Aluminum0.1640.1250.1000.07780.06050.04690.03670.0291

Table 1-2: Partial Discharge Test

Rated Voltage (kV)3.6/66/108.7/1512/2018/3021/3526/35
Test Voltage (kV)6.2310.3815.0520.7631.1436.3344.98
Max. Discharge (pC)10101010101010

Table 1-3: AC Voltage Withstand Test

Rated Voltage (kV)3.6/66/108.7/1512/2018/3021/3526/35
Test Voltage (kV)12.52130.5426373.591
Test Time (min)5555555

Table 1-4: Rated Voltage, Core Numbers & Cross-Sectional Area

U0/Um (kV)3.6/66/108.7/1512/2018/3021/3526/35
Single-Core (mm²)25-63025-63035-63035-63050-63050-63050-630
Three-Core (mm²)25-40025-40035-40035-40050-40050-40050-400

Cable Parameter

1410.0300.760.1694.32233
1210.0300.760.1894.83247
1010.0300.760.2135.44668
610.0601.520.2767101151
1470.0300.760.1774.52436
1270.0300.760.2015.13450
1070.0300.760.2285.84973
870.0451.140.2917.479118
470.0601.520.3869.8172256
270.0802.030.44511.3263391
1190.0802.030.53113.5339505
1/0190.0802.030.57514.6418622
2/0190.0802.030.62215.8515767
3/0190.0802.030.67717.2638950
250370.0952.410.82320.99431404
300370.0952.410.88222.411181664
350370.0952.410.93723.812921923
400370.0952.410.9842514652180
500610.0952.411.07927.418102694
600610.1102.791.19730.421783241
800610.1102.791.34334.128634260
1000610.1102.791.47237.435385265

Al/XLPE/Cts/Swa/PVC Cable

Indoor, Construction, Building UL CSA Electrical Twu WireAl/XLPE/Cts/Swa/PVC Cable8AWG,10AWG,12AWG,14AWGISO9001, CE, CCC, RoHS, UL CSAWhatsapp: +86…

Read More

Underground Armored Cable

Indoor, Construction, Building UL CSA Electrical Twu WireUnderground Armored Cable8AWG,10AWG,12AWG,14AWGISO9001, CE, CCC, RoHS, UL CSAWhatsapp:…

Read More

300V Cable wire

Indoor, Construction, Building UL CSA Electrical Twu Wire300V Cable THW TWU Copper8AWG,10AWG,12AWG,14AWGISO9001, CE, CCC, RoHS,…

Read More

Leave a Comment

Your email address will not be published. Required fields are marked *