|
Posted to alt.home.repair
|
|
|
Romex cable
"WW" wrote in message
news 
What is the difference between NM and NMB romex cable? Code here now will
not allow NM to be used. WW
The difference is the temperature rating of the conductors in the cable. I
believe that NM used type "T" conductors rated at 60 degrees, and NMB uses
type "THHN" rated at 90 degrees
|