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+86 188 3213 4509
Electrical Cable
Electrical Cable
Applications
Twin twisted flexible wire refers to the cable of one flexible insulated core twisted with another flexible insulated core with the voltage 300/500V. commonly known as "flower line", at this stage, this kind of wire is mostly used in fire protection system, also called "fire line". They are specially suitable for application:
● For the detector circuit of the fire alarm automatic alarm system
● For household appliances, small power tools, instrumentation and power lighting.Double white core is used for direct connection to the lamp line;red and blue core is used for fire protection,alarm etc.,red and white core is used for broadcasting and telephone line; red and black core is used for broadcasting line.
● For connect the amplifier and audio equipment, and the broadcast system transmits the audio signal amplified by the power amplifier
For any more information or advice please contact the office on 0086-18832134509(WhatsApp/WeChat)
Details
Overview Twin twisted flexible wire refers to the cable of one flexible insulated core twisted with another flexible insulated core with the voltage 300/500V. commonly known as "flower line", at this stage, this kind of wire is mostly used in fire protection system, also called "fire line".
A 2 core twisted pair shielded cable comprises of two separate insulated copper wires, which are twisted together and run in parallel. One of the wires is used to transmit data and the other is the ground reference. For light or medium-size home appliances, instrument & meters, and power-driven lighting.
Description: Twin Twisted Flexible Wire Cable
Conductors: Class 5 of plain annealed flexible stranded copper in accordance with IEC 60228.
Insulation: Polyvinyl chloride PVC
Colour of Sheath: White-White; Red-Blue;Red-White;Red-Black;Red-Yellow etc.;
Voltage Rating (Uo/U): 300/300V
Test Voltage: 2kV for 5 minutes
Maximal operating conductor Temperature: up to 70℃（PVC insulation); up to 90℃(XLPE insulation)
Operating Temperature Range: -5℃（PVC or LSZH sheath); -20℃（PE sheath)
Short Circuit Temperature(5 seconds maximum duration): 140℃-160℃（PVC insulation);250℃（XLPE insulation)
| Cross-sectional Area | No.&diameter of wire | Nominal Thickness | Reference overall diameter | Reference weight | Resistance at 20℃ Max. |
| (mm²) | (N/mm) | (mm) | (mm) | (kg/km) | (Ω/km) |
| 2 x 0.5 | 2*28/0.15 | 0.5 | 5.8 | 0.5 | 39 |
| 2 x 0.75 | 2*42/0.15 | 0.5 | 6.6 | 0.5 | 26 |
| 2 x 1 | 2*32/0.20 | 0.6 | 7 | 0.6 | 19.5 |
| 2 x 1.5 | 2*48/0.20 | 0.7 | 8 | 0.7 | 13.3 |
| 2 x 2.5 | 2*77/0.20 | 0.8 | 9.4 | 0.8 | 7.98 |
| 2 x 4 | 2*56/0.30 | 0.8 | 11.1 | 0.8 | 4.95 |
| 2 x 6 | 2*84/0.30 | 0.8 | 12.3 | 0.8 | 3.3 |
Fire Alarm Systems – signal transmission between detectors, control panels, and sirens in high-rise and industrial buildings.
Lighting and Control Circuits – indoor and outdoor lighting wiring in residential, office, and commercial facilities.
Broadcasting and Communication – used as transmission lines for background music systems, public announcement, and intercoms.
Household Appliances – suitable for internal wiring of small devices such as fans, audio systems, and kitchen equipment.
Standards – produced in accordance with IEC 60228 (conductor), IEC 60227/IEC 60502 (insulation and construction).
Conductor Resistance – fully compliant with IEC limits (e.g., ≤39 Ω/km for 0.5 mm², ≤3.30 Ω/km for 6 mm² at 20 °C).
Thermal Performance – maximum continuous conductor temperature: 70 °C (PVC) or 90 °C (XLPE). Short-circuit rating: up to 250 °C for 5 s.
Fire Safety – flame-retardant and LSZH (Low Smoke Zero Halogen) versions available for environments requiring enhanced safety.
Testing – every batch tested for insulation resistance, dielectric strength, and conductor resistance before delivery.
1. More than 20 years of cable production, supplying to building contractors, distributors, and OEMs worldwide.
2. 100% factory inspection including conductor resistance measurement, insulation breakdown test, and visual inspection before shipment.
3. Monthly production capacity over 500,000 m ensures stable delivery even for large bulk orders.
4. low minimum order quantity (MOQ) and customizable packaging to support both distributors and project contractors.
5. Professional engineering team available to provide wiring advice, specification matching, and documentation support.
