In this way the metal raceway acts in place of the grounding wire that is found in nm cable this is also the main reason why only metal boxes may be used with metal conduit.
Bare copper ground wire in conduit.
The pvc conduit fill table.
This conduit fill table is used to determine how many wires can be safely put into pvc conduit tubing.
Connect the ground wire in the plastic box to the metal box extension by screwing a no.
I m planning to run from a 100a sub panel to a rod in addition to the ground wire that goes back to the service ground.
Each row going across is a different size of pvc conduit schedule 40 or 80.
Each column going up and down is a different gauge of wire.
I don t think i would have been able to.
According to table 19 of cec part 1 you would need to use an insulated or sheathed cable.
Electrical conduit whether it be rigid metal emt rigid plastic pvc or flexible metal fmc is limited as regards the maximum number of electrical wires that can be run inside the conduit.
As this is in a conduit i would suspect the reasoning to be that moisture through condensation could.
Then connect the grounding pigtail to the ground wire or wires in the plastic box with a wire connector.
The results show the allowable number of wires for each size type of conduit and wire based on the 2020 nec code.
I was able to run bare copper ground through pvc conduit and it passed our local city inspection.
Each row going across is a different size and type of conduit either emt imc or galvanized pipe rigid metal conduit rmc.
In some installations using metal conduit the raceway the conduit boxes and connectors serve as the ground for the circuit.
Each column going up and down is a different gauge of wire.
Does a bare ground going to a ground rod need conduit.