Return to electrician calculators

Range Calculator by Gerald Newton electrician2.com
NEC 220.55 Feeder and Service Range, Stove Top, and Oven Calculator for Dwellings
and cooking appliances used in instructional programs (see examples at bottom of page)

 

Section 1

Each unit load required to be
Greater than 1 3/4 KW and less than or equal to 12 KW
(See NEC Table 250.22 and Note 3)

 
Final Output for Section 1  KW

Inputs

Subdomain Analysis

    Each unit load required to be
greater than 1 3/4 KW and less than or equal to 12 KW		   greater than 1 3/4 KW to less than
3 1/2 KW

Col A		 3 1/2 KW to 8 3/4 KW


Col B		 not over 12 KW



Col C		 over 12 KW through 27 KW


Note 1

 over 8 3/4 KW to 27 KW


Note 2

 over 1 3/4 through 8 3/4 KW


Note 3
   

A

 Select KW

B

 Select fraction
KW
C		 Select Number
of units with KW value

D

 rangea

E

 subtotal

F

 rangeb

G

 subtotal

H

 rangec

I

 subtotal

J

 ranged

K

 subtotal

L

 rangee

M

 subtotal

N

 rangef

O

 subtotal

P
1    
2    
3    
4    
5    
6    
7    
8    
9    
10    
 

Unit Output Summary

Total Connected Load KW for each subdomain

 Col A Col B Col C     Note 2 Note 3

Total Number of Units for each subdomain

 Units Units Units     Units Units

At least one value is in subdomain

 Y? Y? Y?     Y? Y?

Demand Load in KW

 col a demand col b demand col c demand        

Calculated Demand Load in KW 

            col a , b, or col c

 

     sum col a and b                

 

Section 2

Each Range load required to be
Over 12 KW to 27 KW and of the same rating
(See NEC Table 220.55 Note 1)

 
Final Output for Section 2  KW

Inputs

  
   
Enter over 12 KW to 27 KW
(All ranges of the same rating)

Summary for over 12 KW to 27 KW ranges of the same ratings
    Select KW Select fraction
KW		 Select Number
of units with KW value		             over 12 KW through 27 KW      
                       

Total Connected Load KW

                      

Number of Units

                      

At least one value in domain

                      

Total Demand in KW

             Total        
 

Section 3

Each Range load required to be
Over 8 3/4 to 27 KW unequal ratings
(See NEC Table 250.55 Note 2)

 
Final Output for Section 3 KW

Inputs

  

Enter over 8 3/4 KW to 27 KW
(Ranges of the unequal rating)

Summary over 8 3/4 to 27 KW unequal ratings
    Select KW Select fraction
KW		 Select Number
of units with KW value		                   over 8 3/4 KW to 27 KW    
27                    
28                    
29                    
30                    
31