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DESCRIPTION
OVERVIEW
The 450/750V sR Insulated Fire Resistant control cables are designed, manufactured and tested for general application in power supply and signal wiring, for emergency circuit and fi re circuit control.
STANDARDS:
Basic design to BS 7629-1
Characteristics
Insulation Colour:
Without earth conductor
2 cores blue - brown, 3 cores brown - black - grey
4 cores blue - brown - black - grey, 5 cores blue - brown - black - grey - black
With earth conductor
3 cores yellow/green - blue - brown
4 cores yellow/green - brown - black - grey
5 cores yellow/green - blue - brown - black - grey
Sheath Colour: Colour red (other colours on request)
Physical And Thermal Properties
Temperature range during operation (fixed state): -30°C – +90°C
Temperature range during installation (mobile state): -20°C – +50°C
Minimum bending radius: 7.5 x Overall Diameter
Without earth conductor
2 cores blue - brown, 3 cores brown - black - grey
4 cores blue - brown - black - grey, 5 cores blue - brown - black - grey - black
With earth conductor
3 cores yellow/green - blue - brown
4 cores yellow/green - brown - black - grey
5 cores yellow/green - blue - brown - black - grey
Sheath Colour: Colour red (other colours on request)
Physical And Thermal Properties
Temperature range during operation (fixed state): -30°C – +90°C
Temperature range during installation (mobile state): -20°C – +50°C
Minimum bending radius: 7.5 x Overall Diameter
SPECIFICATIONS
Low Voltage
Working Temperature 90℃
Fire Resistance
CONSTRUCTION
- Conductors:Plain annealed copper wire, stranded according to IEC(EN) 60228 class 2.
- Insulation:Fire resistant silicone rubber compound
- Cabling:The cores are cabled together in concentric layers with suitable non-hygroscopic fillers.
- Outer Sheath:Thermoplastic LSZH compound
PARAMETER
- Electrical PROPERTIES
- CONSTRUCTION PARAMETERS
| DIELECTRIC TEST: | 2500 V r.m.s. x 5' (core/core) |
| INSULATION RESISTANCE | ≥300 MΩ x km (at 20°C) |
| SHORT CIRCUIT TEMPERATURE | 350°C |
Conductor Operating Temperature : 90°C
Ambient Temperature : 30°C
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