Two Surge Protectors?

Jim Norman wrote:
I understand that a direct hit by a bolt of lightning is probably not going to be within the protective spec of any surge protector available for an RV.

Nonsense. As explained, if a protector connects low impedance to a pole, then hundreds of thousands of joules dissipate harmlessly in earth. Then effective protection from direct lightning strikes exists.

For RVs, an effective protector for this anomaly is a type that locates at / on the pole. Since this anomaly is rare, many want a protector for other and more problematic anomalies. Such as missing ground, brownouts, and open neutrals.