PUR EF YY high-flex control cable (unscreened) is designed for use in free movement without tensile stress and in drag-chains etc.
These tough highly flexible PUR EF YY cables work well in control applications where the cable is constantly moving, particularily in arduous environments. The PUR sheath provides increased mechanical and chemical resistance when compared to standard PVC.
Suitable for installation in dry, moist or wet areas and where exposed to harsh mechanical strain or dragged over sharp/rough surfaces.
Highly flexible control cables are built along the same lines as YY/CY control cables but with finer stranded conductors. If there is need for protection against electrical interference please see our range of EF CY cables.
| Construction – PUR EF YY |
|---|
| stranded plain copper conductors |
| polyvinylchloride (PVC) or polypropylene (PP) core insulation |
| cores twisted in layers |
| textile wrapping |
| grey polyurethane (PUR) outer sheath |
| Technical – PUR EF YY | |
|---|---|
| conductor make-up: | class 6 (extra-fine stranded), see Stranding/Resistance page |
| bend radius: | 4 x overall diameter (O/D) fixed, 7.5 x O.D flexing |
| voltage rating: | 300/500V operating, 4000V test |
| current rating: | as per YY, CY or SY style cables chart, see Current Ratings page |
| insulation resistance: | 20 MΩ x km |
| temperature range: | -5°C to +70°C flexible, -40°C to +80°C static |
| flame retardant: | according to IEC 60332-1-2 |
| core identification: | OZ, usually 2 core = numbered black cores without earth (green/yellow) |
| JZ, usually 3+ cores = numbered black cores with earth (inc. in core count) | |
A printable PDF specification is available here: PUR EF YY grey high-flex control (unscreened).
Standard flexible versions can be found here: PUR JZ-OZ
For alternative constructions (smaller colour coded cores, PVC sheath, screened, etc.) return to the Highly Flexible Control and Data front page
These cables are often available in low smoke zero halogen versions, designed for increased safety in the case of fire. Please contact us for more information.
