conductor and fuse sizing
- Thread starter ALJAMES
- Start date
- Status
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
We do not answer homework questions, but we are willing to help.
Post your answer as to why this may or may not be allowed and members are willing to help.
What do you make of Roger's response and why? It is a good starting point that he gave you.
Post your answer as to why this may or may not be allowed and members are willing to help.
What do you make of Roger's response and why? It is a good starting point that he gave you.
Because it's not allowed!
- Location
- Logan, Utah
Cow
Senior Member
- Location
- Eastern Oregon
- Occupation
- Electrician
Yes, I'm well aware of the applications where a 30A breaker can be used with #12. But he's not asking about that. He's asking about the applications where you can not use a 30A breaker with #12. Sometimes it's not allowed.
It was an intentionally vague answer to a vague question.
No he's not, he's asking foa a "reason" not to use a 30 amp OCPD on a # 12 and your vague answer left alot to be desired. The question was not really vague but it is obviously a study question given the fact that the OP is a student.
Roger
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
"Forty-seven! . . . "
Hooked up a 4 ton A/C (only) that would have been acceptable for 14 AWG on a 30A, was not a bid job so used 10 AWG. (208V 3? 18.7A w/ a max OCPD of 30A). It took a long time for the rules for A/C equipment to sink in, now get a chuckle when home inspectors go ape (bleep) when they see 10 AWG w/ a 40A breaker on a A/C feed.
- Location
- Lockport, IL
- Occupation
- Retired Electrical Engineer
- Status