220.42 vs 220.84 Multifamily load calcuations

Status
Not open for further replies.
K

kenaslan

Senior Member
Location
Billings MT
Is there a reason to use 220.42 over 220.84 for doing multifamily load calauations. I have allways understood that 220.42 was for SINGLE dwelings or triplex... For large 64 unit places I have always used 220.84. Does anyone know which is better, and why?

Thanks
Ken
 
kenaslan said:
Is there a reason to use 220.42 over 220.84 for doing multifamily load calauations. I have allways understood that 220.42 was for SINGLE dwelings or triplex... For large 64 unit places I have always used 220.84. Does anyone know which is better, and why?
Click to expand...


It tells you in 220.84 (A) 1-2-3
If those conditions are met. Other wise use 220.42
IMHO ;)
 
All conditions have been met. I have allways found that 220.84 calcuates a smaller size panel than 220.42 thus substantial cost savings to the contractor/owner (damn that VE)
 
VE = Value Engineering where they beat you up on the design for a cheeper construction $$ LOL Cheep turkeys. Use Al not Cu. Can we use MC instead of EMT that sort of thing. GE instead og SqD
 
Status
Not open for further replies.
Top