Many folks are not aware of recept ratings are rated based on non-continious loads. This is why when a single receptacle is on a dedicated circuit, the amperage rating has to match the breaker. A common problem in colder climates is the misuse of portable space heaters. Too many times a 1500 Watt heater is pluged into a 15 amp receptacle. These heaters are not design or built to run continously (3 hours or more). Yet may times like under houses, they run 24/7 when it is cold out. At 15 amps, that recept and plug are rated at 1800 Watts. However as a continious load, their rating is only 1440 Watts. I have seen and replaced outlets that melted like marshmellows because of this.
To the average home owner, if the plug fits the outlet, they think there is going to be no problem. (If it doesn't fit, some will make it fit.
) Too many possibilities are out there that can be used on GP recepts. This is why there are several limitiations on recepts and their circuits. If a recept is installed for the a specific application, just like everything else, it has to be sized accordingly.
That is why I do not use off brand recepts and dicourage the use of residential grade receptacles. Cheap is not always the best way to go. Even in a competitve market. I get my all my critical electical parts though reputable vendors, not the local hardware store. If you have been in the trade long enough, you know who the homeowner will blame for an electrical fire that results from improper use.
