British telecom specification CW1128 covers a range of external duct grade cable generally used for external interconnections.
Application
The cable is designed primarily for installing in ducts in the ‘D’ or Secondary side of local telecommunications networks. Various options are available including cable incorporating an aluminium/co-polymer-coated tape applied longitudinally over the paper core wrap acting as a moisture barrier (Compliant with BT Specification CW1179), aerial self supporting cable incorporating a steel support member for use in overhead applications (Compliant with BT Specification CW1252), and galvanised steel wire armoured version suitable for direct burial (Compliant with BT Specification CW1198). The product is also available with filling compound suitable for tropical climates with a drop point greater than 80ºC.
Construction
Twisted pairs in 10 Pair Units. The pair range is 2 – 100.
Product Description
Plain annealed solid copper wire, cellular polyethylene insulation, twisted pairs, petroleum jelly filling, paper core wrap and black low density polyethylene sheath.
