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Industrial Cables-British Standard
318B to BS 6500(New BS EN 50525-3-11)
Application and Description
318B to BS 6500(New BS EN 50525-3-11) 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. 318B to BS 6500(New BS EN 50525-3-11) cables 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 CL-5 or IEC 60228 CL-5
Halogen-fee thermoplastic TI6 core insulation
Green/Yellow grounding (3 conductors and above)
Halogen-fee thermoplastic TM7 outer jacket
Core Identification
-
2Cores: Brown, Blue
3Cores: Brown, Blue and Green/Yellow
4Cores: Brown, Grey, Black and Green/Yellow
5Cores: Brown, Blue, Grey, Black and Green/Yellow
Technical Characteristics
-
Working voltage: 300/500 volts
Test voltage: 2000 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 |