300/500V Mica+LSZH Insulated, Non-sheathed Power Cables to BS EN 50525-3-31 (Single Core)
Mica+LSZH Insulated Non-sheathed Power Cables Are Engineered for Environments Where Fire Safety, Reliability, and Performance are Non-negotiable
APPLICATION
The cables are mainly used in power stations, mass transit underground passenger systems, airports, petrochemical plants, hotels, hospitals and high-rise buildings.
STANDARDS
Basic design adapted from BS EN 50525-3-31
FIRE PERFORMANCE
Circuit Integrity | IEC 60331-21; BS 6387 |
Flame Retardance (Single vertical wire or cable test) | IEC 60332-1-2; EN 60332-1-2 |
Reduced fire Propagation (Vertically-mounted bundled wires & cables test) | IEC 60332-3-24; EN 60332-3-24 |
Halogen free | IEC 60754-1; EN 50267-2-1 |
No Corrosive Gas Emission | IEC60754-2; EN 50267-2-2 |
Minimum Smoke Emission | IEC 61034-2; EN 61034-2 |
VOLTAGE RATING
300/500V
CABLE CONSTRUCTION
ConductorCopper conductor according to BS EN 60228 class 1/2/5.
Fire BarrierMica glass tape.
InsulationThermoplastic compound of type TI 7 to EN 50363-7.
Insulation OptionUV resistance, hydrocarbon resistance, oil resistance, water resistance, anti-rodent and anti-termite properties can be offered as option.
COLOUR CODE
Black, Blue, Brown, Grey, Orange, Pink, Red, Turquoise, Violet, White, Green and Yellow. Bi-colours of any combination of the above mono-colours are permitted.
PHYSICAL AND THERMAL PROPERTIES
Maximum temperature range during operation70°C
Maximum short circuit temperature (5 Seconds)160°C
Minimum bending radius4 x Overall Diameter
CONSTRUCTION PARAMETERS
Conductor | FFX100 05mZ1-U/R/K | ||||
|---|---|---|---|---|---|
No. of Cores × Cross-sectional Area | Conductor Class | Nominal Insulation Thickness | Min. Overall Diameter | Max. Overall Diameter | Approx. Weight |
No.×mm² |
| mm | mm | mm | kg/km |
1×0.5 | 1 | 0.6 | 2.9 | 3.3 | 13.5 |
1×0.75 | 1 | 0.6 | 3.1 | 3.5 | 16.5 |
1×1.0 | 1 | 0.6 | 3.2 | 3.7 | 19.7 |
1×0.5 | 2 | 0.6 | 3.0 | 3.4 | 14.4 |
1×0.75 | 2 | 0.6 | 3.2 | 3.6 | 17.3 |
1×1.0 | 2 | 0.6 | 3.3 | 3.8 | 21.3 |
1×0.5 | 5 | 0.6 | 3.1 | 3.5 | 14.2 |
1×0.75 | 5 | 0.6 | 3.2 | 3.7 | 17.7 |
1×1.0 | 5 | 0.6 | 3.4 | 3.8 | 20.7 |
ELECTRICAL PROPERTIES
Conductor operating temperature: 70°C
Ambient temperature: 30°C
Current-Carrying Capacities (Amp)
Conductor cross-sectional area | Single-phase a.c. | Three-phase a.c. |
|---|---|---|
mm² | A | A |
0.5 | 3 | 3 |
0.75 | 6 | 6 |
1.0 | 10 | 10 |
Note: These values apply to the majority of cases. further information should be sought in unusual cases eg.: When high ambient temperatures are involved, ie. above 30°C Where long lengths are used Where ventilation is restricted Where the cords are used for other purposes, ego internal wiring of apparatus. | ||
Voltage Drop (Per Amp Per Meter)
Conductor cross-sectional area | 2 cables d.c. | 2 cables, single-phase a.c. | 3 or 4 cables, three-phase a.c. | |||||
|---|---|---|---|---|---|---|---|---|
Ref. Methods A&B (enclosed in conduit or trunking) | Ref. Methods C, F&G (clipped direct, on trays or in free air) | Ref. Methods A&B (enclosed in conduit or trunking) | Ref. Methods C, F&G (clipped direct, on trays or in free air) | |||||
Cables touching | Cables spaced* | Cables touching, Trefoil | Cables touching, flat | Cables spaced*, flat | ||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
mm² | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m | mV/A/m |
0.5 | 93 | 93 | 93 | 93 | 80 | 80 | 80 | 80 |
0.75 | 62 | 62 | 62 | 62 | 54 | 54 | 54 | 54 |
1.0 | 46 | 46 | 46 | 46 | 40 | 40 | 40 | 40 |
What Are Mica+LSZH Insulated Power Cables?
The term Mica+LSZH refers to the unique combination of materials used in these cables: mica tape for fire resistance and Low Smoke Zero Halogen (LSZH) insulation for enhanced safety. These single-core, non-sheathed power cables are rated for a voltage of 300/500V, making them suitable for low to medium voltage applications. The BS EN 50525-3-31 standard ensures they meet stringent European requirements for safety and performance.
Key Components of the Cable
Conductor: The core of the cable is made of copper, adhering to BS EN 60228 standards, available in Class 1 (solid), Class 2 (stranded), or Class 5 (flexible) configurations. Copper’s excellent conductivity ensures efficient power transmission.
Fire Barrier: A layer of mica glass tape provides exceptional fire resistance, allowing the cable to maintain circuit integrity during a fire.
Insulation: The LSZH thermoplastic compound (Type TI 7), compliant with EN 50363-7, minimizes smoke and toxic gas emissions in fire scenarios. Optional features like UV resistance, hydrocarbon resistance, oil resistance, water resistance, anti-rodent, and anti-termite properties can be added for specific applications.
Color Coding: Available in a range of colors (e.g., black, blue, brown, grey, orange, pink, red, turquoise, violet, white, green, yellow, and bi-color combinations), these cables allow for easy identification in complex installations.
Applications of Mica+LSZH Power Cables
The versatility of 300/500V Mica+LSZH cables makes them indispensable in environments where safety and reliability are paramount. Their primary applications include:
Power Stations: These cables ensure uninterrupted power delivery in high-stakes environments.
Mass Transit Systems: Underground passenger systems rely on these cables for safe, reliable operation.
Airports: Critical systems like lighting and communication depend on fire-resistant cables.
Petrochemical Plants: Resistance to hydrocarbons and oils makes these cables ideal for harsh industrial settings.
Hotels and Hospitals: Low smoke and halogen-free properties protect occupants during emergencies.
High-Rise Buildings: Fire safety is critical in tall structures, where evacuation times may be extended.
Fire Performance: A Game-Changer in Safety
One of the standout features of Mica+LSZH insulated cables is their exceptional fire performance, which sets them apart from traditional cables. Let’s break down their fire-resistant properties:
Circuit Integrity: Tested to IEC 60331-21 and BS 6387, these cables maintain functionality during a fire, ensuring critical systems like emergency lighting and alarms remain operational.
Flame Retardance: Compliant with IEC 60332-1-2 and EN 60332-1-2, the cables resist flame spread in single vertical wire tests.
Reduced Fire Propagation: According to IEC 60332-3-24 and EN 60332-3-24, these cables limit fire spread in bundled configurations, a critical feature in densely wired environments.
Halogen-Free: As per IEC 60754-1 and EN 50267-2-1, the LSZH insulation emits no halogen gases, reducing toxicity risks.
Low Corrosive Gas Emission: Tested to IEC 60754-2 and EN 50267-2-2, the cables produce minimal corrosive gases, protecting equipment and health.
Minimum Smoke Emission: Compliant with IEC 61034-2 and EN 61034-2, the cables emit low smoke, improving visibility during evacuations.
Why Choose Mica+LSZH Cables?
The combination of mica tape and LSZH insulation offers a compelling value proposition:
Enhanced Safety: The halogen-free, low-smoke insulation reduces health risks and improves evacuation conditions during fires.
Fire Resistance: Mica tape ensures circuit integrity, maintaining functionality in emergencies.
Versatility: Optional features like UV and oil resistance make these cables adaptable to diverse environments.
Compliance: Adherence to BS EN 50525-3-31 and international fire performance standards guarantees reliability.
Ease of Installation: Flexible conductor options (Class 5) and a small bending radius simplify installation in tight spaces.
Conclusion
The 300/500V Mica+LSZH insulated, non-sheathed power cables to BS EN 50525-3-31 are a testament to the power of innovative engineering. By combining mica tape for fire resistance with LSZH insulation for safety, these cables meet the stringent demands of modern infrastructure. Whether in power stations, hospitals, or high-rise buildings, they provide a reliable, safe, and efficient solution for power delivery. As technology evolves, these cables will continue to play a vital role in shaping a safer, more connected world.
