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frenchcrawler: can a insulated basic electromagnet be used to fish a metal object in a pipe in 8 feet of water? Answered

just want to know if this electromagnet  can be used under water

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rickharris

8 years ago

Despite what you might think water isn't a very good electrical conductor. if you keep to 12 volts you should not have issues with the water anyway.

DON'T use mains power with water.

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The Ideanator

8 years ago

Yea, but if you're really worried about shorts(or want to use it repeatedly) coat it in epoxy and you should be fine.

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NachoMahma

8 years ago

.  Most electromagnets use enameled wire, which offers some short-term protection from water. It will probably not withstand repeated dunkings. For one-time use, just about any low-voltage (eg, 12VDC) coil should work.
.  If you want something that can be used more than once or if you will be using higher voltage (eg, 120VAC), get a potted coil and use wiring with water-resistant insulation.

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Re-design

8 years ago

Yes. You must make the wires watertight so they don't short out though.

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Re-designRe-design

Answer 8 years ago

An in the bargain it will pick up quite a bit more weight than it would on dry land.