Originally Posted by hellosailor
In a word, NO. You don't have enough money
to buy one that big, if
Generally speaking... I don't have the money to buy much of anything! Seems to be what gets me thinking over the top in the first place... (Grin!)
Did some searching around earlier today on the hunt for switches that take lightening and send it to ground in order to protect a circuit. Closest thing I've found to boat strikes, is a "Direct strike" to fixed land based expensive stuff that earns its keep. (Power grid, telephone lines, radio
Thought this was an interesting read: LIGHTNING AND SURGE PROTECTION
The oldest being a carbon rod with small gap to ground, so that it arcs above a certain voltage. (Doesn't do anything to protect solidstate devices... as it takes time for the charge to build, and then jump the gap.) This is what protects copper wire telephone lines.
On the power grid side... Gas tubes. Wired in parallel, so that when sufficient voltage is applied to charge the Neon inside, it transfers the current
to ground. (I am thinking its about the same as wiring
in a capacitor to smooth out voltage, except on steroids... and intended to blow up... grin.) Edit: Just read that a gas tubes trade
name is a "Crow bar." Grounds out a bus bar the same as tossing a crowbar across them... weird visual.
Next: Selenium diodes. Two metal plates with a dollop of selenium between them. I've only played with these in voltage rectifiers... but evidently they make pretty decent lightning
shunts too, and good forever... don't degrade. They get HOT normally... so who knows what the mounting looks like if its intended to be smitten by Thors hammer. (I'll have to do some more reading about these... seems like a dead technology.)
Then there are MOV's or Metal Oxide Varistors. Variable resistors, that resistance changes when voltage changes. The greater the voltage, the greater the resistance. Solid state devices, and no lag time like the ones above. These are what are in surge protectors for computers
... Arrays wired in parallel so they all take an equal load. (Limited life expectancy, time decay... and only good a few times.)
Then... Silicon Avalanche Diodes. I'm having a hard time finding anything out about these. Probably because the technology is above my paygrade... (Grin)
These folks (ITW Linx | Category 6 Surge Protectors | Power and Lightning Surge Protection Solutions
) talk about using fusible links in the power wire, after the circuit breaker trips so the circuit is physically made open... no more wire! They are also used in some of the power strip surge protectors on the market... Cheapest of all possibilities. But... who knows how many amps even a teeny wire can carry at a bajillion volts!
A part of me is wondering about just using the negative terminal of the battery
as ground for the house power and only worrying about inductive damage from lightning, or have a massive knife switch somewhere that is open during storms. (Keeping the rig up and a hole free hull
are the main goal... but it'd help not to lose all the electrical
Interesting topic... I'm not so sure I want to know what happens to a carbon fiber mast
when it gets hit.