[rverdlm]

I'm assuming that you're blowing the 30 A breaker on the power pole. First off a perfect 30 A breaker is only good for 24 A continuous. You say you have on the A/C, TV and cable. What about the fridge? What about the water heater? If both of those are on electric you will exceed the 24 A! Another big draw is the microwave. If both of those are on gas and you're not using the M/W you can't be drawing more than 24 A. The problem then is that the 30A breaker is bad. I've seen this many times in RV park, especially older parks. Try plugging into a different box. If it proves to be the 30 A breaker it is simple and cheap to replace.