CW1128 jelly filled telephone cable is used to interconnect equipment in fixed installations. The petroleum jelly filling (PJF) acts as a water barrier so that the cable can be used in wet areas. The duct grade outer sheath is made from tough, durable polyethylene which is also UV and sunlight resistant.
These CW1128 cables are suitable for use in ducts or outdoors where an armoured cable is not required. Ideal for clipping around the outside of buildings or running through ducting. Not recommended for direct burial applications. They offer a lightweight, compact and tough solution where cables are needed that will have to endure a variety of weather conditions. Not recommended for indoor use.
|Construction – CW1128 jelly filled telephone|
|solid plain copper conductors|
|polyethylene (PE) core insulation|
|cores twisted into pairs or into quad formation|
|petroleum jelly filler (PJF) with paper wrap|
|black duct grade PE outer sheath|
|Technical – CW1128 jelly filled telephone|
|conductor make-up:||1x 0.5mm diameter (0.196mm2 area)|
|1x 0.9mm diameter (0.636mm2 area)|
|bend radius:||10 x overall diameter fixed|
|maximum capacitance:||275pF/Km maximum|
|resistance @ 20°C:||1/0.5mm cores = 97.8 Ω/km max. per core|
|1/0.9mm cores = 12.4 Ω/km max. per core|
|temperature range:||0°C to +40°C operating|
|construction:||generally to British Telecom CW1128|
|core identification:||coloured according to CW1128, see Colour Codes page|
A printable PDF specification is available here: CW1128 jelly filled (PJF) duct grade telephone cable.
For alternative armoured &/or screened versions return to the Coaxial and Telephone front page.