Terminating Power cord.

Providing the power cord has a third wire, equipment grounding conductor, connect the shield to the ground pin of the plug at the wall receptacle end only. The equipment ground wire will connect at both ends.

What is the nominal wall receptacle voltage in Bangkok?
What does the receptacle ,or plug, configuration look like there? Do you have a picture of either?

I checked my voltage 230v. I think they claim 220.

The plug outlets in new buildings look similar to the states though in some the slots are rounded to accept an old Thai rounded two prong.

Older buildings have 2 prong outlets.

I went to a High-End shop today that sells the stuff. He said don't connect the shield.
By the way I double check all the screws on my cords, most needed a tightening. Some have pulled apart when bending too much.

I agree with Viridian and Jea48 about connecting the shield to the wall end (male) plug only but with this caveat: Only if the shield is braided so that you can comb it out and twist together in a tight wire. If the shield is a foil type wrap, just snip it off.