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CONSTRUCTION
| Conductor | Round wire of annealed high conductivity copper |
| Insulation | Each conductor is insulated with solid PE |
| Quadding | Four insulated conductors stranded to form a star quad. |
| Laying Up | The quads are assembled to form a symmetrical core with a right hand lay. Polyethylene strings of required diameter may be used as fillers, if necessary. |
| Filling & core wrapping | The cable core is fully filled with water -resistant compound and wrapped with polyethylene. |
| Moisture Barrier | Aluminium tape coated with co-polymer on both sides is applied longitudinally over the cable core with a specified overlap. |
| Sheathing | The screened cable core is sheathed with black polythene compound as per BS:6234. |
| Screening & protection | The cable core with inner sheath is surrounded by a reasonably close fitted screen of Aluminium in the form of wires/ strips . The aluminium screen is wrapped with a single layer of woven tape impregnated with Barium chromate with overlap. |
| Intermediate sheath | Further protection of screening is provided by extruded PVC/PE sheath over screening. |
| Armouring | Armouring with two applications of Galvanized steel tape each applied helically with a specified gap. |
| Jacketing | The armoured cable is finally jacketed with black PVC/PE compound. |
- Suitable for Direct burial application
- Armoured construction
- Availability of standard conductor sizes of 0.9 mm & 1.4 mm diameter
- Available in 4 and 6 quads.
- Suitable for use on AC systems (earthed or unearthed) for rated voltage up to and including 1100 volts.
- These cables may be used on DC systems for rated voltages up to and including 1500 volts on earth.
| Conductor Diameter | Conductor Resistance at 20ºC | Attenuation at 20ºC |
| 0.90mm | 28 (Each Core) Ω/Km (Max) 56 (loop) Ω/Km (Max) | 4.40 dB/Km (Max. Avg.) at 150KHz 2 dB/Km (Max. Avg.)at 300-3400 Hz |
| 1.4mm | 11.6 (Each Core) Ω/Km (Max) 23.2 (loop) Ω/Km (Max) | 0.3 dB/Km (Max. Avg.) at 0.8KHz 0.8 dB/Km (Max. Avg.) at 5KHz 1.3 dB/Km (Max. Avg.) at 21KHz 2.5 dB/Km (Max. Avg.) at 150KHz |
| Mutual Capacitance | Capacitance Unbalance (800 Hz to 1000 Hz) | |
| 50 ± 2.5 nF/ Km (avg.) | Pair to Pair | Pair to Earth |
| 50 ±6 nF/Km (individual) | 300 pF/Km (max.) | 1500 pF/Km (max. avg.) |
| 0.90 mm | ELFEXT : 150 KHz 55 dB/Km Ind. (Min.) 67.8 dB/Km (RMS) (Min.) | NEXT : 55 dB (min.) at 150 KHz |
| 1.4 mm | ELFEXT : at 0.8KHz, 5KHz 21 KHz & 150 KHz 60.0 dB/Km Ind. (Min.) 70.8 dB/Km (RMS) (Min.) | NEXT : 55 dB (min.) at 0.8 KHz, 5 KHz, 21 KHz & 150 KHz |
| 0.90 mm | 470 +/- 15% Ω at 0.8KHz 195 +/- 15% Ω at 5.0 KHz |
| 1.4 mm | 310 +/- 15% Ω at 0.8KHz 150 +/- 15% Ω at 5.0 KHz 110 +/- 15% Ω at 21.0 KHz 100 +/- 15% Ω at 150.0 KHz |
| No1 – White, Orange, Red , Green | No2 – White, Blue, Red , Green |
| No3 – White, Brown, Red , Green | No4 – White, Green, Red , Green |
| No5 – White, Yellow, Red , Green | No6 – White, Black, Red , Green |