power cords for 220v

Redkiwi

You have raised good concerns but because of my poor knowledge of electrical configuration, I do not however fully understand why the left-right polarity reversal would matter. I imagine the manufacturers of high-end equipments when producing a 240V unit will have considered and addressed this polarity reversal issue ? I thought the stock pc that accompany a 240V unit should be the same as that for a 120V unit; and therefore would have the same polarity issue as those after-the-market pc ?

Greeni. If you look at a US plug and say an Aus plug, with the phase and neutrals above the earth, then whereas the phase will be on the left on one plug, it will be on the right on the other. Some adaptor plugs correctly reverse the phase and unfortunately some don't. If your equipment has a double pole switch then there is no real issue, but some equipment use just a single pole switch, leading to the possibility that the neutral is being switched and the phase is not. Under these conditions a unit that is faulty can be 'live' and dangerous when switched off when it would not be if the phase was not reversed. The issue is not a big one. My reason for raising it was to recommend you use an adaptor plug that deals with the phase reversal rather than one that does not, or to refit the cord into a local plug, attending to correct phase. Consider this - an electrician would lose his license if he installed wall sockets with disregard as to phase. There are safety reasons to get this right, even if the circumstances where it makes a differences are possibly rare. FWIW you can go to VH Audio and order any of their power cords with most countries' plugs. You should always check with the manufacturer and I think you will find Chris will confirm the suitability of his cords for 230V operation. In response to your logic on the stock after-market cord. In some cases, sadly, you may be right. But if the local plug has been competently fitted then the cord will have been fitted to the plug with the right polarity. The issue is not the cord, but the fitting of it to the plug. Hope this helps.

Thanks Redkiwi and it is very kind of you to explain in details.