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Answer Posted / bala.a
Mr. Virendra this formula is applicable for busbar only
not for cables . as per your statment 10 sq mm cu cable
suitable for 16 A only . PLEASE GO AND CHECK with cable
manufacture catalouge. the 10 sq mm Al cable suitable for
+_ 40A .
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A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram
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