If in the case of a half-hot switched receptacle where the power is coming from the receptacle box, if the neutral wire is capped in the switch box, why can't the neutral wire just be snipped at each end of the three-conductor Romex?

Answer

If you simply cut the wire in the outlet box, it is not a neutral, just a wire covered with white insulation. Code requires a neutral in the switch box, thus the necessity to splice it to a neutral in the outlet box.

It is required to stop a homeowner (or someone else) from using the ground wire as a neutral, leaving the circuit without a ground.

Updated on March 16, 2018

Original Article:

An Electrician Explains How to Wire a Switched (Half-Hot) Outlet
By Dan Harmon
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