Does kitchen sink need to be grounded?

Yes, a kitchen sink needs to be grounded for safety reasons.

The National Electrical Code (NEC) requires that all sinks be grounded to prevent electrical shock. This is because sinks are often in contact with water, which can conduct electricity. If a sink is not grounded, there is a risk that a person could be shocked if they touch the sink while an electrical appliance is plugged in.

To ground a kitchen sink, a grounding wire must be connected to the sink and then to the grounding terminal of the electrical outlet. The grounding wire is usually green or bare copper. If your sink does not have a grounding wire, you must have one installed by a qualified electrician.

It is important to note that even if your sink is properly grounded, there is still a small risk of electrical shock if you touch the sink while an electrical appliance is plugged in. To avoid this risk, always unplug electrical appliances before using them near a sink.