The document calculates the electrical load of communal services in an apartment building. It shows that 24 lighting points will draw 240 watts and 6 10A sockets will draw up to 12A, for a total demand of 18A per phase. The total demand current per phase for communal services is 18A.

1. Communal services loading
Load Description Qty Current Calculatio
Group of load per allowance n Demand (A)
(given list) phase per unit
(column 4)
L1 L2 L3
Full connected (24 x 60) / 6.0
Lighting
H 24 load 240
points
2 A per point up 2 x 6 12.0
10 A socket to a max of 15A
I 6
outlet
Total demand current per phase for communal
18.0
services

2. Communal services loading
Load Description Qty Current Calculatio
Group of load per allowance n Demand (A)
(given list) phase per unit
(column 4)
L1 L2 L3
Full connected (24 x 60) / 6.0
Lighting
H 24 load 240
points
2 A per point up 2 x 6 12.0
10 A socket to a max of 15A
I 6
outlet
Total demand current per phase for communal
18.0
services

3. Communal services loading
Load Description Qty Current Calculatio
Group of load per allowance n Demand (A)
(given list) phase per unit
(column 4)
L1 L2 L3
Full connected (24 x 60) / 6.0
Lighting
H 24 load 240
points
2 A per point up 2 x 6 12.0
10 A socket to a max of 15A
I 6
outlet
Total demand current per phase for communal
18.0
services

4. 154.4 + 18.00 = 172.4 A

5. The following
explanation is not in
the workbook