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Single core stranded copper building wire, code 3/.029 — three strands of 0.029 inch wire, which computes to 1.28 mm². The trade sells that build as 1.5 mm², and the IEC 60228 reference figures for 1.5 mm² are what the table below carries: 19.5 A on method C, 12.1 Ω/km, 29 mV/A/m. PVC insulated to 450/750 V. This is the lighting-circuit wire that gets pulled through conduit on a house job. Drawn on the Pilone line in Lahore.
Prices track the daily copper rate. Bulk and coil 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, stranded (3/.029 in) |
| Nominal area | ≈ 1.5 mm² (nearest IEC 60228 size) |
| Max conductor resistance at 20°C | 12.1 Ω/km (1.5 mm² class 2 reference) |
| Current capacity (method C, 2 loaded) | 19.5 A (1.5 mm² reference) |
| Voltage drop | 29 mV/A/m (1.5 mm² reference) |
| Voltage rating | 450/750 V |
| Insulation | PVC, 70°C conductor rating |
| Reference standards | IEC 60228 (nearest size), IEC 60227 (PVC cables) |
Board to ceiling rose to switch, looped in conduit. The size almost every lighting circuit in a Pakistani house is wired in.
Two-way switching, fan regulators and light points, where the load is a few amps and the run is short.
Bought by the coil during first fix. Three strands pull round a conduit bend more easily than a solid conductor of the same size.
The buyer here is a house wireman at first fix, ordering coils by the colour for a 5 or 10 marla build. 3/.029 is the lighting size and it should stay on lighting: socket circuits normally step up to the next code, 7/.029, which the trade sells as 2.5 mm² — see 7/.029 copper cable. For an AC point, a geyser or a stove the jump is bigger again, to 4mm (7/.036) single core copper cable. The honesty on the code cuts both ways: 3/.029 computes to 1.28 mm² and is sold as 1.5 mm², and Pilone labels by the same market convention every other maker uses, which is why both numbers are printed here. If you want a true metric 1.5 mm² conductor, ask for it by the mm² name — 1.5mm single core solid cable.
Worked example — a 5 A lighting circuit 30 m from the board.
Voltage drop is current × length × the tabulated 29 mV/A/m, divided by 1000. So 5 × 30 × 29 ÷ 1000 = 4.4 V, which is 2.0% of 220 V — inside the 5% BS 7671 allows on a power circuit, 11 V here. Load the same wire to its full 19.5 A and the 11 V budget is spent at 11 ÷ (19.5 × 29 ÷ 1000) = 19 m. That is short, and it is the reason long runs on a big plot move up a size even when the load has not changed — check yours with the voltage drop calculator.
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