- Location
- Bremerton, Washington
One of my students recalled there used to a 6" nipple rule(where fill derating is not required)
He was right and its in the 1968 NEC, the next I have is 1978 where its 24".
Any ideas as to why it changed from 6" to 24"?
He was right and its in the 1968 NEC, the next I have is 1978 where its 24".
Any ideas as to why it changed from 6" to 24"?