Product specification
NR/PS/TEL/00014
Telecommunications Optical Fibre Cable (formerly RT/E/PS/00014)
Issue 4, April 2006 · Fibre design
Clause map — what each clause deals with
| 1 | Purpose | Procurement spec for PE- and ZHLS-sheathed optical fibre trunk cables |
| 2 | Scope | What cable types and fibre counts the spec covers |
| 3 | Reference documentation | Referenced standards (BS EN 187000 series, ITU-T G.652 and so on) |
| 4 | Definitions | Definitions |
| 5.1 | General | The fibre type — singlemode to G.652 |
| 5.2 | Refractive Index Profile | Refractive index profile |
| 5.3 | Coating Materials | Fibre coating materials |
| 5.4 | Proof Test | Fibre proof testing for lifetime |
| 5.5 | Fibre Colour Coding | Fibre colour coding tables |
| 5.6 | Geometric Requirements | Geometric tolerances of the fibre |
| 5.8 | Singlemode Waveguide Requirements | Singlemode waveguide parameters — mode field diameter, cut-off |
| 5.9 | Attenuation Requirements | Attenuation requirements |
| 6 | Polyethylene Sheathed Armoured Cable | PE-sheathed armoured cable construction — service life, strength member, tubes, fillers, binder, inner sheath, armour, marking |
| 6.1 | Service Life | Service life in trackside troughing |
| 6.2 | Strength Member | Central strength member (non-metallic) |
| 6.3 | Tubes | Loose tubes — size and colour |
| 6.7 | Armouring | Steel/polymer laminate armouring |
| 6.8 | Sheath Marking | Sheath marking legend |
| 7 | Polyethylene Sheathed duct Cable | PE-sheathed duct cable construction |
| 7.2 | Strength Member | Metallic strength member for duct cable |
| 7.6 | Moisture Barrier | Moisture barrier |
| 8 | ZHLS Sheathed Armoured Cable | ZHLS-sheathed armoured cable construction |
| 9.1 | Tensile Strength | Tensile strength test |
| 9.2 | Crush Strength | Crush strength test |
| 9.3 | Cable Bend | Cable bend test |
| 9.4 | Tube Kinking Test | Tube kinking test |
| 9.5 | Resistance to Water Penetration | Water penetration test |
| 9.7 | Sheath Thickness | Sheath thickness |
| 9.8 | Ability to Strip Oversheath of Armoured Cables | Strippability of the oversheath |
| 9.11 | Torsion | Torsion test (armoured) |
| 9.12 | Impact Test | Impact test (armoured) |
| 9.13 | Temperature Cycling Test | Temperature cycling |
| 9.14 | Optical Attenuation | Optical attenuation measurement on every fibre |
| 9.15 | Cable Cut-off Wavelength | Cable cut-off wavelength |
| 10 | Extra Acceptance Requirements for ZHLS Cables | Extra acceptance tests for ZHLS — insulation, water absorption, halogens, smoke, flammability |
| 11 | Production Tests | Production tests and certificates of conformity |
| 12.1 | Sealing and Marking of Ends | Sealing and marking cable ends |
| 12.2 | Drumming | Drumming requirements |
| 12.3 | Supply Lengths | Supply lengths |
| 12.4 | Labelling | Drum labelling |
| 13.1 | Product Acceptance | Product acceptance before supply |
| 13.2 | OFCOM Approval | OFCOM approval |
| 14 | Safety | Safety in handling and testing |