Pulling more than 50 amps ?

TechWriter wrote:
Our park electrician says that some of the big rigs with 3 ACs and electric everything can sometimes draw more than 50A from a 50A pedestal.

Truth or BS?

There are several possible responses to this.
1: Political and thus no further mention
2: YES. for a tiny fraction of a second as the A/C starts But then so do smaller units.. (The starting surge can push it over 50 amps but if it stays there for long TRIP goes the breaker)
3: YES. sort of but not really 50 amps is 50 amps at 240 volt divided. (Kitchen term)( meaning two legs of 50 amps. NOW some people think of this as "100 amps" but it's not it's 50 amps.. I do not want to get into the reason I say this before breakfast but basically if perfectly balanced every amp is used twice (The neutral wire carries the DIFFERENCE between L-1 and L-2) so no more than 50 amp flows in any wire. If you draw more than 50. CLICK goes the breaker.

4: If you draw more than 50 CLICK goes the breaker so the Park Electrician was LYING to you and that is the best and final answer.

I had that happen in one RV park the manager claimed to be an electrician and told me the problem and the reason the breaker on my site needed replacement was because of those big rigs pulling more than 30 amps.... it was the 50 amp breakers that failed.

I out rank him on electrical/electronics stuff (Certified electronics technician, even if I don't work in that field anymore)