Fire Resistant Power & Control Cable – 300/500V Mica+XLPE LSZH – IEC 60502-1

Low Voltage Power Cables Control Cables
Description

Fire Resistant Power & Control Cable

Product Overview

The 300/500V Mica+XLPE Insulated, LSZH Sheathed Fire Resistant Power Cables are designed for areas where the integrity of the electrical circuit is critical in maintaining power supply. Applications can be found in emergency lightings, control and power circuits, power stations, fire alarm systems, underground tunnels, lifts, escalators, and high-rise buildings.

The cables feature plain annealed copper conductors, Mica glass tape covered by extruded cross-linked XLPE insulation, and a thermoplastic LSZH outer sheath. The basic design conforms to IEC 60502-1.

Features & Benefits

  • Fire Resistant: Mica glass tape combined with XLPE insulation maintains circuit integrity in fire conditions.

  • LSZH Sheath: Thermoplastic low smoke zero halogen outer sheath reduces toxic fumes and smoke.

  • Reliable Performance: Plain annealed copper conductors, stranded to IEC(EN) 60228 Class 2.

  • Optional Earth Conductor: Uninsulated solid or stranded tinned copper earth conductor available.

  • High Operating Temperature: Conductor operating temperature of 90°C.

  • Wide Temperature Range: Fixed: -30°C to +90°C; Mobile: -20°C to +50°C.

  • Voltage Rating: 300/500V.

  • Short Circuit Temperature: 250°C.

  • Insulation Resistance: 1000 MΩ x km at 20°C.

  • Standard Compliant: Basic design to IEC 60502-1.

  • Sheath Colour: Black/Orange (other colours upon request).

Typical Applications

  • Emergency lighting systems

  • Control and power circuits

  • Power stations

  • Fire alarm systems

  • Underground tunnels

  • Lifts and escalators

  • High-rise buildings

  • Critical installations requiring circuit integrity during fire

Construction

  • Conductor: Plain annealed copper wire, stranded according to IEC(EN) 60228 Class 2

  • Insulation: Mica glass tape covered by extruded cross-linked XLPE compound

  • Earth Conductor (Optional): Uninsulated solid or stranded tinned copper conductor

  • Cabling: Cores cabled together in concentric layers with suitable non-hygroscopic fillers

  • Outer Sheath: Thermoplastic LSZH compound

  • Insulation Colour:

    • 2-Core: Brown & Blue

    • 3-Core: Brown, Black & Grey

    • 4-Core: Brown, Black, Grey & Blue

  • Sheath Colour: Black/Orange (other colours upon request)

Technical Specifications

Electrical Properties

Parameter Value
Dielectric Test 2000 V r.m.s. x 5' (core/core)
Insulation Resistance 1000 MΩ x km (at 20°C)
Short Circuit Temperature 250°C
Conductor Operating Temperature 90°C
Ambient Temperature 30°C

Physical & Thermal Properties

Parameter Value
Temperature Range – Fixed State -30°C to +90°C
Temperature Range – Mobile State -20°C to +50°C
Minimum Bending Radius 8 x Overall Diameter

Single Core – Without Earth Conductor

Nominal Cross Section Area (mm²) No./Nominal Diameter of Strands (No./mm) Nominal Insulation Thickness (mm) Nominal Sheath Thickness (mm) Nominal Overall Diameter (mm) Approx. Weight (kg/km)
1.5 7/0.53 0.5 0.5 4.4 29
2.5 7/0.67 0.5 0.5 4.9 40
4 7/0.85 0.5 0.5 5.5 55

Multi Core – Without Earth Conductor

No. of Core x Cross Section (No*mm²) No./Nominal Diameter of Strands (No./mm) Nominal Insulation Thickness (mm) Nominal Sheath Thickness (mm) Nominal Overall Diameter (mm) Approx. Weight (kg/km)
2 Core
2 x 1.5 7/0.53 0.5 0.5 7.7 70
2 x 2.5 7/0.67 0.5 0.5 8.8 100
2 x 4 7/0.85 0.5 0.5 9.8 140
3 Core
3 x 1.5 7/0.53 0.5 0.5 8.7 90
3 x 2.5 7/0.67 0.5 0.5 9.5 125
3 x 4 7/0.85 0.5 0.5 11.5 180
4 Core
4 x 1.5 7/0.53 0.5 0.5 10.3 105
4 x 2.5 7/0.67 0.5 0.5 11 155
4 x 4 7/0.85 0.5 0.5 12.5 255

Multi Core – With Earth Conductor

No. of Core x Cross Section (No*mm²) No./Nominal Diameter of Strands (No./mm) Nominal Insulation Thickness (mm) Nominal Sheath Thickness (mm) Nominal Overall Diameter (mm) Approx. Weight (kg/km)
2 Core
2 x 1.5 7/0.53 0.5 0.5 8.2 80
2 x 2.5 7/0.67 0.5 0.5 9.6 120
2 x 4 7/0.85 0.5 0.5 10.5 170
3 Core
3 x 1.5 7/0.53 0.5 0.5 10.5 100
3 x 2.5 7/0.67 0.5 0.5 10.7 150
3 x 4 7/0.85 0.5 0.5 12.5 220
4 Core
4 x 1.5 7/0.53 0.5 0.5 12.2 120
4 x 2.5 7/0.67 0.5 0.5 13 190
4 x 4 7/0.85 0.5 0.5 13.5 270

Note: All values are nominal as provided in the source specification. Actual dimensions and weights may vary within standard manufacturing tolerances.

Standards & Compliance

  • Basic Design: IEC 60502-1

  • Conductor: IEC(EN) 60228 Class 2

Ordering Information

To request a quote or place an order, please provide the following information:

  • Product Type: Fire Resistant Power & Control Cable

  • Voltage Rating: 300/500V

  • Number of Cores and Cross-Section: e.g., 2 x 1.5 mm², 3 x 2.5 mm², 4 x 4 mm²

  • Earth Conductor: With or Without

  • Insulation: Mica + XLPE

  • Outer Sheath: Thermoplastic LSZH, Black/Orange (other colours on request)

  • Quantity: Total length in meters