220 volt circuits

[Kevin]

When hooking up a 220 volt circuit where is the ground wire connected at the panel? Is it to the ground or to the neutral bus bar, I have seen conflicting diagrams. Which one is correct?
Kevin.

[Jim in Burlington]

Ground for sure.

[Rick Smith]

Bare ground wire always to ground (same place as all the other bare wires). The white, which connects to the neutral bus on a 110 volt circuit, connects to the second terminal on the double breaker used for a 220 volt circuit. There is no neutral connection (unless you are conecting a red/white black for a stove or dryer).

Rick in Cobourg

[Ron in Richmond Hill]

Typical you use a 2 wire cable for your wiring with a black and a white conductor (and a ground either bare or greeen). When connecting to 220v, I use black electrical tape to cover the white insulation so I know it is a "hot" conductor.

[Kevin]

This is what I thought, but I remember seeing a diagram with the bare wire connected to the neutral bus bar. Anyway I have mine connected to the ground.
Thanks, Kevin.

[Michael in Port Alberni]

There is only one place that a ground wire connects to the neutral buss. Right at the main service, there will be a ground wire from a ground rod, plate or UFER ground that will connect to the neutral buss via a larger lug. There will also be a brass screw that bods the neutral buss to the can, which is what all of the rest of the system is grounded to. If you have a second panel (sub panel) connected to the same system,, this brass screw MUST be removed from the second panel in order to prevent problems. Other than that first connection, all grounds go to a ground strip/lug and all neutrals to the neutral buss.

Cheers

Michael