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21 x lighting points
12 x double 10 A socket-outlets
1 x 15 A socket-outlet
1 x 230 V, 6.0 kW oven
1 x 230 V, 2.4 kW instantaneous water heater
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Load       Description      Current       Calculation   Demand
Group       of load         allowance                   current
(column 1) (given list)     per unit                    (Amps)
                            (column 2)
            21 lighting     3A            3+2            5.0
   A (i)
            points
            12 double       10 A (1st 20) 10 + 5         15.0
            outlets         5 A (next 20)
   B (i)
            (equivalent 24
            sockets)
            15 single-phase 10 A          None           10.0
   B (ii)
            outlets
                            50%           (6000 / 240) x 12.5
    C       Oven rating
                            (or x 0.5)    0.5
     E      Instantaneous 33.3 %          (2400 / 240) x 3.33
            HWS             (or x 0.33) 0.33
                 Total demand current = 45.83 A
Electrical load calculation

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Electrical load calculation

  • 1.
  • 2.
  • 3.
  • 4.
  • 5. 21 x lighting points 12 x double 10 A socket-outlets 1 x 15 A socket-outlet 1 x 230 V, 6.0 kW oven 1 x 230 V, 2.4 kW instantaneous water heater
  • 6.
  • 7.
  • 8. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 9. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 10. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 11. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 12. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 13. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A
  • 14. Load Description Current Calculation Demand Group of load allowance current (column 1) (given list) per unit (Amps) (column 2) 21 lighting 3A 3+2 5.0 A (i) points 12 double 10 A (1st 20) 10 + 5 15.0 outlets 5 A (next 20) B (i) (equivalent 24 sockets) 15 single-phase 10 A None 10.0 B (ii) outlets 50% (6000 / 240) x 12.5 C Oven rating (or x 0.5) 0.5 E Instantaneous 33.3 % (2400 / 240) x 3.33 HWS (or x 0.33) 0.33 Total demand current = 45.83 A