Here are two pics of homeowner-installed range / dryer receptacles.
The dryer recep is obviously dangling...think of an MC extension cord.
The range recep is also simply sitting on the floor, but in this case the romex is not secured to the case either. Once again, little more than a fancy extension cord.
In both cases, these properties were built in the days when a 30-amp service was common, and a 60-amp was for the rich folks. As you might have guessed, the original wiring was completely inadequate for today's lifestyles, and much more was required than just a "service change".
[This message has been edited by Webmaster (edited 04-18-2005).]