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LU Section 12 Fire Integrity Cables
Application
The cables are designed for installation typically in public help points (PHP), public address (PA), station
announcement platforms (SAP) & CCTV camera power systems. The LSZH cables has been designed to provide
superior flame retardance and circuit integrity, together with optimized ease of installation characteristics and
complies with LU Section 12 station regulations.
Standards
BS 7629-1/ 5839-1: 2002/ 8434-1: 2003/6387 C W Z
BS EN 50200 (PH90)
UNE 211025
Construction
Conductors
Class 1 solid or Class 2 stranded annealed bare copper conductors to BS EN 60228: 2005 (previously BS 6360).
Insulation
Silicone rubber insulation.
Core Wrapping
Plastic tape(s) with overlapping.
Screen
Aluminium/Polyester tape.
Drain Wire
Tinned copper.
Sheath
High performance, thermoplastic LSZH.
Electrical Characteristics at 20℃
| Nominal Conductor Cross Section | mm² | 1.0 | 1.5 | 2.5 |
| Maximum Conductor DC Resistance | Ω/km | 18.1 | 12.1 | 7.41 |
| Nominal Insulation Thickness | mm | 0.6 | 0.7 | 0.8 |
| Voltage Rating | KV | 0.3/0.5 | ||
Mechanical and Thermal Properties
Minimum Bending Radius: 6×OD
Temperature Range: -40℃ to +90℃ (during operation);
-10℃ to +70℃ (during installation)
Dimensions And Weight
| Cable Code | No. of cores& Nominal Conductor Cross Sectional Area No.×mm² |
Conductor Diameter | Nominal Sheath Thickness mm |
Nominal Overall Diameter mm |
Nominal Weight kg/km |
|
| Stranded Conductor No/mm |
Solid Conductor mm |
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| RFLU12-SOZ1-U-PH90(AS+)-300/500V-2G1 | 2×1.0 | 7/0.44 | 1.13 | 1.3 | 7.0 | 83 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-3G1 | 3×1.0 | 7/0.44 | 1.13 | 1.3 | 7.3 | 95 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-4G1 | 4×1.0 | 7/0.44 | 1.13 | 1.3 | 8.2 | 115 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-7G1 | 7×1.0 | 7/0.44 | 1.13 | 1.3 | 10.5 | 175 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-2G1.5 | 2×1.5 | 7/0.53 | 1.38 | 1.4 | 7.9 | 110 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-3G1.5 | 3×1.5 | 7/0.53 | 1.38 | 1.4 | 8.3 | 128 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-4G1.5 | 4×1.5 | 7/0.53 | 1.38 | 1.4 | 9.5 | 160 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-7G1.5 | 7×1.5 | 7/0.53 | 1.38 | 1.4 | 12.2 | 250 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-2G2.5 | 2×2.5 | 7/0.67 | 1.78 | 1.5 | 9.3 | 160 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-3G2.5 | 3×2.5 | 7/0.67 | 1.78 | 1.5 | 9.9 | 190 |
| RFLU12-SOZ1-U-PH90(AS+)-300/500V-4G2.5 | 4×2.5 | 7/0.67 | 1.78 | 1.5 | 11.3 | 235 |
U is changed to K if the stranding class is changed from class 2 to class 5