Before you go to that extent, just what kind of protector did you buy? If it only protects against surges and warns you of mis-wired or faulty power inputs, but does not cut power to the RV for low power situations, I would advise upgrading to a different type before a permanent install.
A true EMS (Electrical Management System) protector is recommended for RVs because most damage comes from low voltages, maybe on only one line, not surges. These devices detect faults in the pedestal but do not allow power to pass to the RV unless the fault is removed. Then, they continually monitor the power input and if a problem appears later, they shut down power to the RV for protection. Power to the RV is restored when the source power is, once again, safe.
Less expensive protectors only use LEDs to indicate proper wiring and some to indicate low voltage, but they continue to allow power to the RV regardless of its safety.
Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.