joeyww12000
Senior Member
- Location
- Chatsworth GA
Ok guys Im doing some derating practice this morning and I remember having a conversation with another electrician at work about this. From reading the posts on here I have concluded you start derating from the 90 degree C column of table 310.16 for most applications depending on insulation of wire being used. The question I have is how do you calculate in the lugs at termination points since they are usually not rated for 90 degree C? Would you not derate to allow for the lowest temperature rated material in the circuit?