Electrical Question

facory wrote:
Running 50 amp service to a 30 amp system is certainly not advised. There is always the possibility of too much amperage even if protected. The only time I would do that is if the site I am in has a broken 30 amp outlet and the 50 amp outlet is the only thing available.

There seems to be some misunderstanding of the difference between a 50A and a 30A service.
The 50A service simply has a higher capacity. It uses 2 legs(240V between) and a Neutral(120V to each leg) with wire sized for 50A. The 30A only uses one leg and a neutral. The 50 to 30A adapter just uses one leg and the neutral. It won't force more electrons into your rig. The total load your rig can draw is limited by the main circuit breaker in your breaker panel. It is perfectly safe(and sometimes better) to use the 50A outlet with an adapter to a 30A rig. There are a few reasons it may be better.
One is: During high load demands(Many AC units running in the park) the more common 30A services will have lower voltages. This will cause your equipment to run less efficiently and if the voltage is low enough, damage your equipment.
Two: The more commonly used 30A outlets will often be worn or damaged.