How to secure a large power cord to a piece of equipment?

I have to admit I would be very concerned in getting a high end power cord that does not fit snuggly. This is one of the characteristics that goes up in high quality power cords. I would return it.

The best sounding power cord I have purchased. Audio Quest Hurricane, is so tight (I have more than one) that it takes a tremendous effort to get off and on. Not because of the outside… but conductor contact. I am sure this is one of the parameters making the cord sound so good. Although all of the high quality cords I have purchased fit snugly at least.

You can check Furutech's NCF Booster, enhancer and cable holder.

If you have the space, put a small wood block between the plug and the shelf below it to raise the plug up a bit. Not very inspiring when this happens. I like my power cords to fit properly.  

A couple of turns of black insulating tape, or self-fusing silicone tape.

Who knows whether to blame the socket or the connector?  The short story is that while there may be a standard, many manufacturers don't adhere precisely to it.  I've had plugs that were loose (e.g. Cardas) and plugs that were tight (e.g. Audio Envy), but that was going into different associated equipment.

+1 chayro