Hi all;
In table 310.21 NEC, with the same size, temperature, ampacities of Bare conductors are smaller than convered conductors.
But
I think that when a conductor is not covered, it will not be affected by temperature of insulation, so why is the ampacity of Bare conductor smaller ?
I don't understand why.
Please, explain to me clearly.
Tks.
Son
In table 310.21 NEC, with the same size, temperature, ampacities of Bare conductors are smaller than convered conductors.
But
I think that when a conductor is not covered, it will not be affected by temperature of insulation, so why is the ampacity of Bare conductor smaller ?
I don't understand why.
Please, explain to me clearly.
Tks.
Son