I am inspecting a job where the E/C has installed a service consisting of (7) runs of 750 kcmil AL in 4" PVC conduits.
The conduits emerge from underground to a raceway and then are nippled from the raceway to the service via PVC nipples.
My original thought was a bonding jumper sized at 12-1/2% of the sum of the service conductors could be used to bond the raceway, however, in reading 250.102(C) it appears that each raceway will need a jumper based on the 750 kcmil.
Am I correct ?
The conduits emerge from underground to a raceway and then are nippled from the raceway to the service via PVC nipples.
My original thought was a bonding jumper sized at 12-1/2% of the sum of the service conductors could be used to bond the raceway, however, in reading 250.102(C) it appears that each raceway will need a jumper based on the 750 kcmil.
Am I correct ?