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Uploaded byTalia Carbis
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4.1.7 Example Domestic 3

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.

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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
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
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
154.4 + 18.00 = 172.4 A
The following explanation is not in the workbook
4.1.7 Example Domestic 3
4.1.7 Example Domestic 3
4.1.7 Example Domestic 3