Posted August 12th, 2017, 04:47 PM
Funny how I always believed a surge protector helped protect against surges that could damage a device as well as to protect your home to prevent fire from overload. The fact that it could cause a fire rather than protect against one requires more knowledge about the mechanics of a large cruise ship than I possess.
In addition to the quote from one of my previous thousand posts about surge protectors that SantaFeFan posted, just know that none
of the ship's multitude of electronics are protected by surge protectors, because lightning doesn't enter the ship's electrical system at all, unlike your home where one of the power conductors (neutral) is connected to the ground conductor, and will transmit voltage back to your electronics. Also, power surges at home are caused when pole transformers blow out, sending spikes of 10,000 volts to your electronics. Ships don't have these types of transformers, and also don't step power down from 10k to 220 (what actually comes into your house) in one step. They have one transformer from 10k to 480 volts, then another from 480 to 220 volts, and finally one from 220 to 110 volts, so all of these transformers would have to blow out at the same time to cause a voltage spike of 10k volts to your cabin on the ship.
Also, just for information, a surge protector will not "protect your home to prevent fire from overload". A surge protector senses overly high voltage
, which can cause a fire due to overheating of the plastic in your electronics if they see the high voltage, but a surge protector does nothing for "overload" or high current
. Only a circuit breaker will protect the house's wiring from overheating from too high a current.