Aerial self supporting cables for local distribution telecommunication network.
International Electro-technical Commission, Publication 708- 4 and 708 - 1
Conductors consist of solid copper having a diameter of 0.4, 0.6 or 0.8 mm
Conductors are insulated by a colored solid polyethylene layer.
The insulation thickness is such as the electrical requirements are met.
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- Element of cabling :
Cables having a capacity Equal to or lower than 5 pairs are assembled in pairs.
- Cabling element :
· Five Quads are assembled to make up a sub-bindle. Quads are identified by the insulated conductor color.
· Cables having a capacity lower than or equal to 100 pairs are assembles in concentric layers of sub-bundles of 5 Quads (10 pairs).
· Cables having a capacity equal to or higher than 100 pairs are made up of bundles of 50 pairs.
· Sub-bundles and bundles are identified with colored ropes.
A dielectric polyester tape is applied over the cable core
On the cable core cover is applied an aluminum tape.
It consists of tinned copper with 0.5 mm diameter.
The sheath consists of low density polyethylene. It is black and contains 2.5 0.5 % of carbon black in compliance with the European standards requirements EN 50290-2-24.
Steel wires assembled galvanized.