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Industrial Cables Multi-Core Flexible Cables
318B to BS 6500
Application and Description
318B to BS 6500 cables may be used as an indoor general wiring cable primarily for installations in public areas.
Examples include use on pendant lighting drops or as a general supply lead within hospital or airport
projects. They are suitable for installations where fire, smoke emission and toxic fumes create a
potential threat to life and equipment. 318B is equivalent to harmonized code H05Z1Z1-F.
Cable Construction
Fine bare copper strands
Stranding to BS 6360 Class 5 or IEC 60228 Class 5
Halogen-fee thermoplastic TI6 core insulation
Green/Yellow grounding (3 conductors and above)
Halogen-fee thermoplastic TM7 outer jacket
Core Identification
2 Cores: Brown, Blue
3 Cores: Brown, Blue and Green/Yellow
4 Cores: Brown, Grey, Black and Green/Yellow
5 Cores: Brown, Blue, Grey, Black and Green/Yellow
Technical Characteristics
Working voltage: 300/500 volts
Test voltage: 2500 volts
Flexing bending radius: 6xOverall diameter
Fixed bending radius: 4xOverall diameter
Operating temperature: -30º C to +90º C
Short circuit temperature: +160º C
Insulation resistance: 20 MΩxkm
Halogen free acc. to EN 50267-2-1 / IEC 60754-1
Smoke density acc. to EN 50268-2 / IEC 61034-2
Corrosivity of gases acc. to EN 50267-2-2, IEC 60754-2
Flame retardancy acc. to EN 50265-2-1, IEC 60332-1
Cable Parameter
| AWG (No of Strands/ Strand Diameter) |
No. of Cores x Nominal Cross Sectional Area #xmm² |
Nominal Thickness of Insulation mm |
Nominal Thickness of Sheath mm |
Nominal Overall Diameter mm |
Nominal Copper Weight kg/km | Nominal Weight kg/km |
| 3182B | ||||||
| 18(24/32) | 2x0.75 | 0.6 | 0.8 | 6.2 | 14.4 | 58 |
| 17(32/32) | 2x1 | 0.6 | 0.8 | 6.6 | 19 | 67 |
| 16(30/30) | 2x1.5 | 0.7 | 0.8 | 7.4 | 29 | 87 |
| 14(50/30) | 2x2.5 | 0.8 | 1.0 | 9.3 | 48 | 138 |
| 12(56/28) | 2x4 | 0.8 | 1.1 | 10.6 | 76.8 | 190 |
| 3183B | ||||||
| 18(24/32) | 3x0.75 | 0.6 | 0.8 | 6.6 | 21.6 | 68 |
| 17(32/32) | 3x1 | 0.6 | 0.8 | 6.9 | 29 | 81 |
| 16(30/30) | 3x1.5 | 0.7 | 0.9 | 8.1 | 43 | 109 |
| 14(50/30) | 3x2.5 | 0.8 | 1.1 | 10.1 | 72 | 172 |
| 12(56/28) | 3x4 | 0.8 | 1.2 | 11.5 | 115.2 | 242 |
| 3184B | ||||||
| 18(24/32) | 4x0.75 | 0.6 | 0.8 | 7.1 | 29 | 81 |
| 17(32/32) | 4x1 | 0.6 | 0.9 | 7.7 | 38 | 101 |
| 16(30/30) | 4x1.5 | 0.7 | 1.0 | 9 | 58 | 117 |
| 14(50/30) | 4x2.5 | 0.8 | 1.1 | 11 | 96 | 210 |
| 12(56/28) | 4x4 | 0.8 | 1.4 | 12.5 | 153.6 | 298 |
| 3185B | ||||||
| 18(24/32) | 5x0.75 | 0.6 | 0.9 | 8 | 36 | 102 |
| 17(32/32) | 5x1 | 0.6 | 0.9 | 8.4 | 48 | 107 |
| 16(30/30) | 5x1.5 | 0.7 | 1.1 | 10 | 72 | 169 |
| 14(50/30) | 5x2.5 | 0.8 | 1.2 | 12.3 | 120 | 260 |
| 12(56/28) | 5x4 | 0.8 | 1.4 | 14.1 | 192 | 371 |