Grounding the switch by using the PE wire of the AC power cord

If the installation site has no grounding strips or earth ground, ground an AC-powered switch through the PE wire of the power cord. Make sure the following requirements are met:

• The power cord has a PE wire.

• The ground contact in the power outlet is securely connected to the ground in the power distribution room or on the AC transformer side.

• The power cord is securely connected to the power outlet. If the ground contact in the power outlet is not connected to the ground, report the problem and reconstruct the grounding system.

	NOTE: To guarantee the grounding effect, use the grounding cable provided with the switch to connect to the grounding strip in the equipment room as long as possible.