Direct Burial Cables
Direct Burial Cable is designed to be placed directly under the ground either by trenching or ploughing. The metallic cable is armoured with corrugated steel tape that provides good protection against rodents and allows the cable to retain outstanding flexibility for easy installation. The cable design is available in unitube (up to 24 fibres) and multitube single sheathed/ double sheathed construction (up to 96 fibres).
UNITUBE DESIGN
Loose tube containing fibres and jelly is centrally located and additional glass reinforcements are applied to provide high tensile strength and cushion loose tube. Armour of corrugated steel tape provides high crush resistance & tensile strength. Steel wire strength members are embedded in HDPE sheath to provide extra tensile strength.
| Fibre count | Diameter (mm) Nominal | Weight (kg/km) Nominal | Tensile Strength (N) | Crush Resistance (N/10cm) | Bending Radius (mm) | Standard put-up length (m) | ||
| Installation (Short Term) | Operating (Long Term) | Temporary (10 x D of Cable dynamic) | Permanent (20 x D of Cable static) | |||||
| UP TO 72 | 11.5 | 110 | 2000 | 1000 | 2000 | 115 | 230 | 2000/4000 |
| 74 TO 96 | 13.0 | 145 | 3000 | 1500 | 2000 | 130 | 260 | 2000/4000 |
| 98 TO 144 | 16.5 | 200 | 4000 | 2000 | 3000 | 165 | 330 | 2000/4000 |
MULTITUBE DESIGN - SINGLE SHEATH CONSTRUCTION
- The corrugated steel tape is co-polymer coated at both sides.
- ECCS Tape armouring provides excellent rodent /rough terrain protection.
| Fibre count | Diameter (mm) Nominal | Weight (kg/km) Nominal | Tensile Strength (N) | Crush Resistance (N/10cm) | Bending Radius (mm) | Standard put-up length (m) | ||
| Installation (Short Term) | Operating (Long Term) | Temporary (10 x D of Cable dynamic) | Permanent (20 x D of Cable static) | |||||
| UP TO 72 | 13.0 | 155 | 4000 | 2000 | 4000 | 130 | 260 | 2000/4000 |
| 74 TO 96 | 15.0 | 215 | 5000 | 2700 | 4000 | 150 | 300 | 2000/4000 |
MULTITUBE DESIGN - DOUBLE SHEATH CONSTRUCTION
Loose tube containing fibres and jelly are stranded around a central strength member (FRP). Armour of corrugated steel tape provides the necessary strength required for direct burial applications.
- The corrugated steel tape is co-polymer coated at both sides.
- ECCS Tape armouring provides excellent rodent /rough terrain protection.
| Fibre count | Diameter (mm) Nominal | Weight (kg/km) Nominal | Tensile Strength (N) | Crush Resistance (N/10cm) | Bending Radius (mm) | Standard put-up length (m) | ||
| Installation (Short Term) | Operating (Long Term) | Temporary (10 x D of Cable dynamic) | Permanent (20 x D of Cable static) | |||||
| UP TO 72 | 15.0 | 215 | 4000 | 2000 | 4000 | 150 | 300 | 2000/4000 |
| 74 TO 96 | 18.0 | 300 | 6000 | 3000 | 4000 | 180 | 360 | 2000/4000 |
GLASS ARMOURED CABLES
Another option for direct burial installation is Glass Armoured Cable. This cable is armoured with glass roving tape that provides good protection against rodents and allows the cable to retain outstanding exibility for easy installation.
UNITUBE DESIGN
| Fibre count | Diameter (mm) Nominal | Weight (kg/km) Nominal | Tensile Strength (N) | Crush Resistance (N/10cm) | Bending Radius (mm) | Standard put-up length (m) | ||
| Installation (Short Term) | Operating (Long Term) | Temporary (10 x D of Cable dynamic) | Permanent (20 x D of Cable static) | |||||
| 2 to12 | 8.5 | 62 | 2000 | 1000 | 2000 | 85 | 170 | 2000/4000 |
| 12 to 24 | 10.0 | 80 | 2000 | 1000 | 2000 | 100 | 200 | 2000/4000 |
MULTITUBE DESIGN
| Fibre count | Diameter (mm) Nominal | Weight (kg/km) Nominal | Tensile Strength (N) | Crush Resistance (N/10cm) | Bending Radius (mm) | Standard put-up length (m) | ||
| Installation (Short Term) | Operating (Long Term) | Temporary (10 x D of Cable dynamic) | Permanent (20 x D of Cable static) | |||||
| UP TO 72 | 11.5 | 110 | 2000 | 1000 | 2000 | 115 | 230 | 2000/4000 |