First of all, I am new here and I would like to say "hi" to everyone.
OK back to my question. I've seen some people calculate range load differently based on note 3 of this table. Below are the two different methods.
-2 ovens @ 2.5kw, 1 countertop @ 1.75kw, 1 oven @ 6kw, 1 range @ 11kw.
-Use column C only unless permitted by note 3.
Method 1:
using column A:
3 appliances under this column = 70% demand factor
Add all together: 2X2.5 + 1.75 = 6.75kw
70% X 6.75kw = 4.725kw
using column B:
1 appliance under this column = 80% demand factor
80% X 6kw = 4.8kw
using column C:
1 range under this column = 8kw
Total load for all appliances:
4.725kw + 4.8kw + 8kw = 17.53kw
Under column C for 5 appliances = 20kw. Choose smaller value as above (17.53kw).
Method 2:
using column A:
2 same-load appliances under this column = 75% demand factor
Add two together: 2X2.5 = 5.0kw
75% X 5.0kw = 3.75kw
1 appliance @ 1.75kw = 80% X 1.75kw = 1.4kw
Add together: 3.75kw + 1.4kw = 5.15kw
using column B:
1 appliance under this column = 80% demand factor
80% X 6kw = 4.8kw
using column C:
1 range under this column = 8kw
Total load for all appliances:
5.15kw + 4.8kw + 8kw = 17.95kw
Under column C for 5 appliances = 20kw. Choose smaller value as above (17.95kw).
***My question is: which method is the right method? I always thought that method 1 makes more sense to me.
Thanks for your reply
OK back to my question. I've seen some people calculate range load differently based on note 3 of this table. Below are the two different methods.
-2 ovens @ 2.5kw, 1 countertop @ 1.75kw, 1 oven @ 6kw, 1 range @ 11kw.
-Use column C only unless permitted by note 3.
Method 1:
using column A:
3 appliances under this column = 70% demand factor
Add all together: 2X2.5 + 1.75 = 6.75kw
70% X 6.75kw = 4.725kw
using column B:
1 appliance under this column = 80% demand factor
80% X 6kw = 4.8kw
using column C:
1 range under this column = 8kw
Total load for all appliances:
4.725kw + 4.8kw + 8kw = 17.53kw
Under column C for 5 appliances = 20kw. Choose smaller value as above (17.53kw).
Method 2:
using column A:
2 same-load appliances under this column = 75% demand factor
Add two together: 2X2.5 = 5.0kw
75% X 5.0kw = 3.75kw
1 appliance @ 1.75kw = 80% X 1.75kw = 1.4kw
Add together: 3.75kw + 1.4kw = 5.15kw
using column B:
1 appliance under this column = 80% demand factor
80% X 6kw = 4.8kw
using column C:
1 range under this column = 8kw
Total load for all appliances:
5.15kw + 4.8kw + 8kw = 17.95kw
Under column C for 5 appliances = 20kw. Choose smaller value as above (17.95kw).
***My question is: which method is the right method? I always thought that method 1 makes more sense to me.
Thanks for your reply
