SYT1+ num -SYT2+ num
PRESENTATION
These cables are used for internal installations. They are particularly used for telephony distribution and ADSL.
These cables could be supplied without armor (SYT1+) or with armor (SYT2+) where mechanical damages could be expected.
REFERENCE STANDARDS
UTE C 93-529-2
CABLE STRUCTURE
1- Conductors :
Conductors consist of solid copper having a diameter of 0.5(AWG24) and 0.8 (AWG 20).
2- Insulation of conductors :
Foam-skin polyethylene.
More info
3- Standing :
. Units: two insulated conductors are assembled in pairs
. Units stranding :
- pairs are assembled in concentric cables having a capacity lower than 21 pairs
- Cables having a capacity of 21 pairs or more are assembled in bundles of 7 or 14 pairs
4- Core wrapping :
A dielectric polyester tape is applied over the cable core
5- Screen
Over the wrapped cable is applied a plastic coated aluminum foil.
6- Drain wire
It consists of tinned copper wire with a 0.45 mm diameter.
7- Inner sheath
The Inner Sheath (SYT2 +) / Outer sheath(SYT+) consist of unleaded PVC. It may be thermoplastic without halogens (LSOH).
8- Armor (for SYT2)
Over the inner sheath are applied two steel tapes with a thikness of 0,2 mm.
9- Outer sheath (for SYT2)
The sheath consist of unleaded PVC. or halogen free compound