1) Lighting Load- (220.14-D) I don’t think you can use the 3.5va per foot. Print Shops and other production facilities are not covered under T220.12. Take a look at 220.14-D, you will need to use the actual lighting load for this calculation. (125%)
2) Receptacles- (220-14 I & L) The 180va is correct: 50 x 180 = 9,000va
3) Demand Factors for Receptacle load- (T220-44) Since you only have 50 x 180 = 9,000va this will note apply.
4) Water heater- (220-14 A) Will there be one? (125%)
5) Outside lighting- (220-14 F & 600.5 A) Will there be any? If yes 1,200va (minimum) @ (125%)
6) Heat/AC- (220-60) The larger of the 2 (100%)
Note: You can’t use the breaker size to determine the load, you will need to look at the name plate on the equipment.
7) Equipment- (220-14 A) List each piece of equipment and again you can’t determine the load by breaker size calculation, you need to get this info from the name plate or a cutsheet, and list them out individually. (100%)
8) Sign circuit- You have to do it, per (220-14 F): 1,200va @ (125%) = 1,500VA
9) Show window- (220-14 G)
10) Largest Motor- (220-14 C)- Add 25% of the largest motor load.
11) Add it all up and divide by 360 (208 x 1.72)
Edit- Water heater is 125%
[This message has been edited by ITO (edited 03-05-2007).]
