CW1128-1179-1198 screened SWA telephone

CW1128-1179-1198 jelly filled, screened & armoured telephone cable is used to interconnect equipment in fixed installations. The petroleum jelly filler acts as a water barrier so that the cable can be used in wet areas. The foil screen provides protection against electrical interference and the steel wire armour provides protection against mechanical damage. The duct grade outer sheath is made from tough, durable polyethylene which is also UV and sunlight resistant.

These CW1128-1179-1198 cables are suitable for use outdoors where the added protections of foil screening and steel wire armour are required. Ideal for direct burial applications, running through ducting or in harsh environments. They offer a tough solution where cables are needed that will have to endure a variety of weather conditions and possible electrical interference or physical damage. Not recommended for indoor use. 


Construction – CW1128-1179-1198 jelly filled, screened & armoured telephone
solid plain copper conductors
polyethylene (PE) core insulation
cores twisted into pairs or quad formation
petroleum jelly filler (PJF)
collective aluminium/polyester tape (CAT) screen
PE bedding & steel wire armour (SWA)
black  duct grade PE outer sheath


Technical – CW1128-1179-1198 jelly filled, screened & armoured telephone
conductor make-up: 1x 0.9mm diameter (0.636mm2 area)
bend radius: 10 x overall diameter fixed
maximum capacitance: 275pF/Km maximum
resistance @ 20°C: 28 Ω/km max. per core
temperature range: 0°C to +40°C operating
construction: generally to BT CW1128/1179/1198
core identification: coloured according to CW1128, see Colour Codes page


A printable PDF specification is available here: CW1128-1179-1198 jelly filled, screened & armoured telephone cable.


For unscreened & unarmoured versions return to the Coaxial and Telephone front page.


All measurements should be considered nominal and images for illustration purposes only. Although Central Cables Ltd has made every reasonable effort to ensure its accuracy, the information contained herein is subject to error or omission and to change without notice. In no event will Central Cables Ltd be liable for any damages whatsoever, arising in connection with the information described.