SharkRider
Contributor
Electricity (in theory) will only zap you in the water a couple of ways.
1. Instant shock (possible death) if there is an exposed electrical wire contacting the water and you at the same time you become grounded... meaning touching something like the pier or a piling.
2. Shock (possible death) if there is a short in the electrical system of the boat (and the power is on) sending current out of the boat through the metals (shafts/props, rudders, trim tabs, intake grates) and if you have sustained contact (holding onto the shaft prop etc..) for more than seconds at a time. This type of shock takes time to build in your body and usually just before a deadly shock you will feel the current and must let go of your grounding source.
The best way to ensure electrical safety when working on a boat in a marina is to make sure the shore power lines connected to the boat are 1. not hanging into the water 2. The shore power breaker is shut off and tagged out) and 3. You have a surface support safety person to ensure the power is not turned back on (is also there to make a rescue if needed.) In addition if the owner is present or if you have access to the interior of the boat, to turn the breakers inside the boat to off.)
Boats in the immediate vicinity do not pose a threat, even if leaking electrical current so long as you do not contact them for extended periods.
1. Instant shock (possible death) if there is an exposed electrical wire contacting the water and you at the same time you become grounded... meaning touching something like the pier or a piling.
2. Shock (possible death) if there is a short in the electrical system of the boat (and the power is on) sending current out of the boat through the metals (shafts/props, rudders, trim tabs, intake grates) and if you have sustained contact (holding onto the shaft prop etc..) for more than seconds at a time. This type of shock takes time to build in your body and usually just before a deadly shock you will feel the current and must let go of your grounding source.
The best way to ensure electrical safety when working on a boat in a marina is to make sure the shore power lines connected to the boat are 1. not hanging into the water 2. The shore power breaker is shut off and tagged out) and 3. You have a surface support safety person to ensure the power is not turned back on (is also there to make a rescue if needed.) In addition if the owner is present or if you have access to the interior of the boat, to turn the breakers inside the boat to off.)
Boats in the immediate vicinity do not pose a threat, even if leaking electrical current so long as you do not contact them for extended periods.