I have a 30 AMP surge protector that goes between the campground plug and the trailer plug. I have had this unit since I bought my first trailer almost 8 years ago. This surge protector has worked great until the last year or so. Every time it rains now the protector trips and has to be reset. What do you think would be causing it and what do you think I should do to rectify the problem?
As insulating materials get older and embedded with pollutantsits insulating value is diminished; that with a little moisture might cause a ground fault condition.
There is an aresol called REPEL that can be used to protect your connections from moisture. I've seen thelive end of a 120 VAC ext cord sprayed with REPEL and then dropped into a pail of water with no negative results.We spray down all of our outdoor Christmas display power cord connections with it.... so far , so good.
Heavy industry pays big dollars to have their outdoor electrical connection insulators cleaned each year. The power lost ( grounded ) due to pollution is costly.
What KamperDavesaid is correct. It's alot like your GFI plugs in your home (if you have any) they get corroded after time then don't work properly. Most GFI's don't function correctly after sometime at all, in your case your surge protector is tripping and cleaning it with a co-contact cleaner may help. Keeping it wrapped in plastic will definatly help keep the moisture out, but prolongedbagging it will also develop unwanted moisture so when not using it store it in a cool dry place.