By the way - the key word in the description of a quality outlet strip is "metal housing". In a saltwater environment all plugs will develop a corrosion layer between the plug itself and the metal contacts in the outlet. This corrosion layer adds to the resistance in the circuit, and gets quite hot. Eventually the resistance is great enough to cause the outlet to heat beyond the ignition point of a plastic housing, which causes a fire.
Heating is still possible (and eventually inevitable in a humid, salty environment) in an outlet strip that has a metal housing, but in this case, the housing cannot catch fire, just the plastic on the outlet face itself.
The best solution to prevent the whole scenario is to locate the electrical outlets outside the containment area of the sump so that they're not exposed to salt air and high humidity. A less-sure but still a better situation than just plugging everything in is to buy some electrically conductive grease, and apply a light coating to the plug's metal prongs.
Finally, it's an extremely good idea to unplug everything from and outlet strip and examine the plugs for a corrosion layer on a schedule - twice a year when you change your smoke detector batteries is a good frequency. If you find corrosion, clean it. If it's too far gone, replace the plug on the piece of equipment if possible, if not replace the piece of equipment.
