Standards

• ER.f5.101

Construction

Conductors
Solid annealed bare copper sized 0.4/0.5mm as per ASTM B-3/class 1 of IEC 60228

Insulation
Solid polyethylene as per ASTM D 1248/IEC 60708

Twisted Pairs
Insulated conductors are twisted into pairs with varying lays to minimize crosstalk

Cable Core Assembly
The pairs are cabled together in layers of 12, 13 & 25 pair unit to form the cable core. Units are identified by colour coded binders

Core Wrapping
One or more non-hygroscopic polyester tapes are helically or longitudinally laid with an overlap

Screen
Aluminium/Polyester tape is applied longitudinally with an overlap

Sheath
PVC or LSZH compound

Ripcord
Nylon ripcord may be placed parallel to the cores to facilitate sheath removal

Armour (optional)
Corrugated steel tape armour

Additional Outer Sheath
PVC (for NYY Cables); PE (for Armoured Cables); LSZH

Drain Wire
Solid tinned copper 0.5mm drain wire may be laid longitudinally under the screen