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Circuit Number Function L1 L2 L3
1 12 twin 36 W fluorescent lighting fittings at 0.4 A per fitting
✔ ➜➜
Move to L3Circuit
✔
2 12 twin 36 W fluorescent lighting fittings at 2.2 A per fitting ✔
3 3 Highbay MV light fittings ✔
3 3 Highbay MV light fittings ✔
5 7 double 10 A outlets ✔
6 7doube10Aoutlets ✔
7 6 double 10 A outlets ✔
8 2 x 15 A single-phase outlet ✔
9 2 x 15 A single-phase outlet ✔
10 15 A three-phase outlet ✔ ✔ ✔
11 15 A three-phase outlet ✔ ✔ ✔
12 Single-phase range ✔
13 Instantaneous water heater ✔
14 -16 4 kW, three-phase motors ✔ ✔ ✔
16 - 19 5.5 kW, three-phase motors ✔ ✔ ✔
Circuit Number Function L1 L2 L3
1 12 twin 36 W fluorescent lighting fittings at 0.4 A per fitting
✔ ➜➜
Move to L3Circuit
✔
2 12 twin 36 W fluorescent lighting fittings at 2.2 A per fitting ✔
3 3 Highbay MV light fittings ✔
3 3 Highbay MV light fittings ✔
5 7 double 10 A outlets ✔
6 7doube10Aoutlets ✔
7 6 double 10 A outlets ✔
8 2 x 15 A single-phase outlet ✔
9 2 x 15 A single-phase outlet ✔
10 15 A three-phase outlet ✔ ✔ ✔
11 15 A three-phase outlet ✔ ✔ ✔
12 Single-phase range ✔
13 Instantaneous water heater ✔
14 -16 4 kW, three-phase motors ✔ ✔ ✔
16 - 19 5.5 kW, three-phase motors ✔ ✔ ✔
Circuit No
Load Group(column 1)
Description of load
(given list)
Current allowanceper unit(column 2)
CalculationDemand (Amps)Demand (Amps)Demand (Amps)Circuit
NoLoad Group(column 1)
Description of load
(given list)
Current allowanceper unit(column 2)
CalculationL1 L2 L3
1A
12 twin 36 W fluorescent
Full connected load 12 X 0.4 = 4.8 ➜➜ 4.8
2A
12 twin 36 W fluorescent
Full connected load 12 X 0.4 = 4.8 4.8
3 A 3 Highbay MV Full connected load 3 X 2.2 = 6.6 6.64 A 3 Highbay MV Full connected load 3 X 2.2 = 6.6 6.65 B(i) 7 double
10 A outlets = 14 points1000 W for 1st outlet + 750 each additional outlet
(1000 + (13 X 750)) / 230 46.7
6 B(i)7 double10 A outlets = 14 points
1000 W for 1st + 750 each additional outlet (1000 + (13 X 750)) / 230 46.7
7 B(i) 6 double10 A outlets = 12 points 1000 W for 1st + 750 each additional outlet (1000 + (11 X 750))
/ 230 40.28
B(iii)2 x 15 A single phase outlets
Full current rating of highest outlet + 75% (x 0.75) full current rating of remainder
15 + (15 X 0.75) 26.25
9 B(iii) 2 x 15 A single phase outlets
Full current rating of highest outlet + 75% (x 0.75) full current rating of remainder 15 + (15 X 0.75) 26.25
10B(iii) 15 A three phase outlet
Full current rating of highest outlet + 75% (x 0.75) full current rating of remainder
This is the highest rated15.0 15.0 15.0
11 B(iii) 15 A three phase outlet
Full current rating of highest outlet + 75% (x 0.75) full current rating of remainder
15 x 0.75 11.3 11.3 11.312 C Single phase range Full connected load current 6400 / 240 26.713 C Instant hot water heater Full connected load current 2400 / 240 10.014 D 4 kW three phase motor
Full load of highest rated motor + 75% (x 0.75) of full load of second highest rated motor, + 50% of full load of remainder
8.5 x 0.5 = 4.3 4.3 4.3 4.315 D 4 kW three phase motor
Full load of highest rated motor + 75% (x 0.75) of full load of second highest rated motor, + 50% of full load of remainder
8.5 x 0.5 = 4.3 4.3 4.3 4.316 D 4 kW three phase motor Full load of highest rated motor + 75% (x
0.75) of full load of second highest rated motor, + 50% of full load of remainder
8.5 x 0.5 = 4.3 4.3 4.3 4.317 D 5.5 kW three phase motor
Full load of highest rated motor + 75% (x 0.75) of full load of second highest rated motor, + 50% of full load of remainder
Highest rated motor 11.7 11.7 11.718
D 5.5 kW three phase motor
Full load of highest rated motor + 75% (x 0.75) of full load of second highest rated motor, + 50% of full load of remainder 0.75 x 11.7 = 8.8
(second highest rated motor)
8.8 8.8 8.8
19 D 5.5 kW three phase motor
Full load of highest rated motor + 75% (x 0.75) of full load of second highest rated motor, + 50% of full load of remainder
0. 5 x 11.7 = 5.8 5.8 5.8 5.8Total demand current per phaseTotal demand current per phaseTotal demand current per phaseTotal demand current per phaseTotal demand current per phase 139.0 153.25 149.85
Using the highest loaded phase (L2 at 153.25 A)
10% for future additions = 1.1 x 153.25 = 168.575 A.
