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Two 2.5 mm² class 5 conductors, 50 strands of 0.25 mm each, PVC insulated and sheathed. 27 A with both conductors loaded on reference method C, 18 mV/A/m, 7.98 Ω/km. This is the two-core flex that goes on AC points, appliance tails and extension boards — the size the trade still orders as 7/.029. Drawn on the Pilone line in Lahore.
Prices track the daily copper rate. Coil and bulk pricing on request.
Check the coil before you pay for it
Every coil leaves our factory with a QR code printed on the packaging. Scan it and the factory record for that batch opens: brand, cable size, batch number, year of manufacture and conductor. Compare the batch number on screen with the one printed on your coil — if the two do not match, it did not come from us.
| Property | Value |
|---|---|
| Conductor | Plain annealed copper, class 5 flexible stranded |
| Nominal area | 2.5 mm² × 2 cores |
| Strand construction | 50 / 0.25 mm per core (typical) |
| Max conductor resistance at 20°C | 7.98 Ω/km |
| Current capacity (method C, 2 loaded) | 27 A |
| Voltage drop | 18 mV/A/m |
| Voltage rating | 300/500 V |
| Insulation / sheath | PVC / PVC, 70°C conductor rating |
| Conductor copper weight | ≈ 44.4 kg/km (2 × 22.2 kg/km per core) |
| Reference standards | IEC 60228 (conductors), IEC 60227 (PVC cables) |
The tail from an isolator or 16 A socket to a room AC, a water cooler or a washing machine, where the earth is already run.
Site boards and portable leads. Fifty 0.25 mm strands per core take daily coiling and uncoiling without the conductor breaking up.
Fitting drops off a lighting circuit, and small single-phase motors inside the 27 A rating where the lead moves with the machine.
Most of this coil leaves the factory to two kinds of buyer: the AC installer who needs a tail from the isolator to the indoor unit, and the shop making up extension boards by the dozen. Two core means line and neutral, and nothing else. The earth has to arrive some other way — the conduit's own earth conductor, or a separate green wire — so this build belongs on circuits where that earth already exists at both ends. If the appliance needs its earth inside the same sheath, the answer is 2.5mm 3 core flexible cable. At 27 A this cable carries about 5.9 kW on a 220 V single-phase supply (220 × 27 ÷ 1000), which covers almost any single point in a house but is nowhere near a submain. One caution on the name: this is 2.5 mm², not 25 mm². The two sound alike across a counter and differ by a factor of ten in copper — the submain size is 25mm 2 core standard cable.
Worked example — how far this cable will reach.
Voltage drop is current × length × the tabulated 18 mV/A/m, divided by 1000. A 10 A appliance point 18 m from the board drops 10 × 18 × 18 ÷ 1000 = 3.24 V, which is 1.5% of 220 V — well inside the 5% BS 7671 allows on a power circuit, 11 V here. Push the same cable to its full 27 A and the drop reaches 11 V at 11 ÷ (27 × 18 ÷ 1000) = 22 m. Past that distance the run length picks the size, not the load — check yours with the voltage drop calculator.
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