How many of you TCers use a portable surge protector between your AC source (house, RV park pedestal, generator) and your TC? Think it's necessary? Don't think it is?
I drive an 'A', not a TC, but my Progressive Industries EMC has saved my bacon on several occasions. In one campground, the pedestal had been wired bas ackwards! And when my on-board generator voltage regulator failed and the generator was putting out 150volts, the EMC save all of the electrical items in the rig.
So..I recommend that you MUST have a means to protect your rig and its electrical contents.