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Ordered in the market as 7/.064 — four aluminium conductors of seven 0.064″ strands each, PVC insulated and sheathed to 450/750 V. Three loaded conductors carry 59 A on BS 7671 reference method C, close to 41 kVA on a 400 V three-phase supply. It takes a three-phase service drop past what a 10 mm² cable can carry: plaza supplies, small factory submains, three-phase tubewells. Drawn on the Pilone line in Lahore.
Prices track the daily aluminium and copper rates. 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 aluminium, class 2 stranded |
| Nominal area | 16 mm² × 4 cores |
| Strand construction | 7 / 0.064″ per core |
| Max conductor resistance at 20°C | 1.91 Ω/km |
| Current capacity (method C, 3 loaded) | 59 A |
| Voltage rating | 450/750 V |
| Insulation / sheath | PVC / PVC, 70°C conductor rating |
| Conductor aluminium weight | ≈ 172.8 kg/km (4 × 43.2 kg/km) |
| Reference standards | IEC 60228 (conductors), IEC 60227 (PVC cables) |
On a balanced three-phase circuit the drop is 1.732 × current × length × resistance ÷ 1000, taking the 1.91 Ω/km from the table above.
A 50 A three-phase load 40 m from the meter: 1.732 × 50 × 40 × 1.91 ÷ 1000 = 6.6 V. On 400 V that is 1.7%, well inside the 5% BS 7671 allows on a power circuit, which is 20 V. Reversed, 50 A reaches the 20 V limit at 20 × 1000 ÷ (1.732 × 50 × 1.91) = 121 m, and at this cable's full 59 A the limit is 102 m. On a normal plaza or factory site the current, not the distance, is what picks this size.
Put the same 50 A on 10 mm² four core and the sum never gets started: that cable is tabulated at 43 A with three loaded conductors, so 50 A is over its head on heat. Both resistance figures are the IEC 60228 maximum at 20 °C, and a conductor near its 70 °C rating reads higher, so keep margin over the calculated volts. Work your own numbers in the voltage drop calculator.
Meter to main panel on a three-phase connection — three phases plus neutral, 59 A, close to 41 kVA at 400 V.
Main panel to distribution boards where the load has passed what 10mm four core carries.
Fixed clipped feeders to three-phase motors and pumps drawing inside 59 A.
This is the size a contractor buys when the connection is three-phase and the sanctioned load has moved past a shop-sized supply: a plaza with several tenants, a small manufacturing unit, a tubewell with a motor big enough to need its own feeder. Four cores because the meter hands over three phases and a neutral. Aluminium because the drop is a fixed, clipped, twice-terminated run measured in tens of metres, and the metal is bought by weight — the conductor in this build is 172.8 kg per km, four cores of 43.2 kg/km each, which is what a per-kilo quote is really counting.
Single-phase installations do not need four cores. Line and neutral only is 16mm 2 core aluminium cable at 66 A. One step down in the same four-core build is 10mm 4 core aluminium cable at 43 A. Where the load needs more current in a smaller cable, the copper equivalent is 16mm 4 core standard cable. We make insulated aluminium power cable, not ACSR or bare overhead conductor.
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