how to calculate electrical load for Commercial or Residential load

how to calculate electrical load for Commercial or Residential load

Normal Load Calculation, Commercial or Residential Electrical Load Calculation: as follows
How to Calculate find the picture

Sample: Load calculation 

01	56" ceiling fan	203 x80 watt	16200 watt
02.	2x4'-40 watt tube light fittings	173 x100 watt	17300 watt
03.	Fancy bracket light fittings	9 x 100 watt	900 watt
04.	Single bracket light fittings	4x100watt	6400 watt
05.	Spot light fittings	64 x100 watt	6400 watt
06.	Call bell	12x100 watt	1200 watt
07.	15A-3 pin combined switch socket	191 x1000 watt	191000 watt
08.	5A 2-pin switch socket	81 x 500 watt	40500 watt
09	1x4’-40 watt tube light fittings	243 x50 watt	12150 watt
10	2’x20’ watt tube light fittings	18 x 50 watt	900 watt.
			=286990 watt.
			=286.99KW
	286.99 KW =3 phase =499 Amps x80 % =399.00Amps
	Recommended main cable=1C-4x150 sq.mm NYY
	Recommended main control breaker  400 Amps TPMCCB

Total load calculation of Internal Electrification works

01	56" ceiling fan	583 x80 watt	46640 watt
02.	2x4'-40 watt tube light fittings	370 x100 watt	37000 watt
03	2’-20 watt tube light fittings	108 x50 watt	5400 watt
04	1x4’-40 watt tube light fittings	912 x 50 watt	45600 watt
05	Fancy bracket light fittings	25 x100 watt	2500 watt
06.	Single bracket light fittings	62x100 watt	6200 watt
07.	Spot light fittings	67 x100 watt	6700 watt
08.	Call bell	128 x100 watt	12800 watt
09.	15A-3 pin combined switch socket	588 x1000 watt	588000 watt
10.	5A 2-pin switch socket	398 x500 watt	199000 watt
			=949840 watt.
			=949.84 KW
	950.00 KW =3 phase =1651.82 Amps x70 % =399.00Amps		=1156.00 Amps
	Recommended main cable=1C-4x630 sq.mm NYY
	Recommended main control breaker  800 Amps TPMCCB
	Sample Load calculation

Sl.No	Specification	6th floor	7th floor	8th floor	9th floor	Total
1.	56"AC ceiling fan	26x80=280 W.	26x80=280 W.	26x80=280 W.	26x80=280 W.
2.	12" Exhaust fan	3x80=240 W	3x80=240 W	3x80=240 W	3x80=240 W
3.	2x4’x40W tube light	9x80=720 W.	9x80=720 W.	9x80=720 W.	9x80=720 W.
4.	1x4’x40W tube light	32x40=1280 w.	32x40=1280 w.	32x40=1280 w.	32x40=1280 w.
5.	1x4’x40W tube light	28x40=1120W	28x40=1120W	28x40=1120W	28x40=1120W
6.	Fancy bracket light	26x100=2600W	26x100=2600W	26x100=2600W	26x100=2600W
7.	Single bracket light	2x100= 200 W	2x100= 200 W	2x100= 200 W	2x100= 200 W
8.	Saucer light fittings	12x100=1200W	12x100=1200W	12x100=1200W	12x100=1200W
9.	Bath room light fittings	2x60=120 W.	2x60=120 W.	2x60=120 W.	2x60=120 W.
10	Call bell	12x40=480 W.	12x40=480 W.	12x40=480 W.	12x40=480 W.
11.	15A.3-pin combined s/s	39x1000=39000W	39x1000=39000w	39x1000=39000W	39x1000=39000W
12.	5A.3-pin combined S/s	33x100=3300W.	33x100=3300W.	33x100=3300W.	33x100=3300W.
	Total	=52340W.	=52340W.	=52340W.	=52340W.	209360W.
		80%=41872W.	80%=41872W.	80%=41872W.	80%=41872W.	=167480 w.
		1=75Amps	1=75Amps	1=75Amps	1=75Amps	=302Amps