there's a 10kVA XFMR 480-240/120V. The engineer provided a 40A 3P CB and 3#8 wire +G.
Is the XFMR protected in this scenario? just wondering because the 125% of the FLA will be at 15 Amps, which both the 40A and the #8 wire can still carry. Do in need to install a disconnecting means local to the XFMR. The upstream breaker is not readily accesible.
Please shed some light brothers!
TNX
Is the XFMR protected in this scenario? just wondering because the 125% of the FLA will be at 15 Amps, which both the 40A and the #8 wire can still carry. Do in need to install a disconnecting means local to the XFMR. The upstream breaker is not readily accesible.
Please shed some light brothers!
TNX