Using duct seal to waterproof 120VAC crimped splice

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  #1  
Old 01-14-16, 01:38 AM
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Using duct seal to waterproof 120VAC crimped splice

Can duct seal be used to waterproof a 120vac crimp splice?

It is for an electric car charger. I replaced an inline fuse that was soldered to the wires. I used an inline fuse holder with terminals for crimped connectors. I also replaced the power cord. Although the charger will never be in the rain, it will be exposed to moisture. I need to seal the exposed connections. I think it is too close to the electronics to use heat shrink. Can i encase the connections in duct seal? Or is there a better way?
 
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Old 01-14-16, 01:45 AM
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Normally 120v splices are not exposed.

You crimped on a new power cord with an inline fuseholder instead of replacing the cord directly into the unit ?

Duct seal would make for a messy seal. Glue filled heat shrink is the best. You could probably just use some silicone glue.
 
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Old 01-14-16, 04:40 AM
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While duct seal is flexible I doubt it will hold up to flexing in the cable. Also I have never seen a voltage rating on it.
 
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Old 01-14-16, 09:01 AM
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Just to clarify, i opened the unit, cut the power cord after the fuse, discarded power cord, ran new power cord into unit, used butt crimp splices on hot and ground and crimp female terminals to attach the neutral to the male fuse holder terminals.
 
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Old 01-14-16, 11:03 AM
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Ok... the splices are inside the unit. Heat shrink would work fine in there.
A small amount of duct seal would probably also be ok.
 
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