SUB FEED

[timmermeier]

What year ( code cycle ) did the nec require 4 wires for sub panel ????????????????????????????????????????????????????????????????????????????????????????????????????????

 

[infinity]

What year ( code cycle ) did the nec require 4 wires for sub panel ????????????????????????????????????????????????????????????????????????????????????????????????????????

For a detached structure 2008. Same structure been required forever.

 

[electrofelon]

What year ( code cycle ) did the nec require 4 wires for sub panel ????????????????????????????????????????????????????????????????????????????????????????????????????????

For detached structures, 2008 I believe. For within the same structure, not sure but a long long time!

 

[electrofelon]

Great minds think alike I guess!