The Hull Truth - Boating and Fishing Forum - View Single Post - Converting a two prong outlet to a three prong outlet
Old 12-04-2008, 08:40 AM
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t3rockhall
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Default Re: Converting a two prong outlet to a three prong outlet

Is it BX cable? The one with the steel shielding around it? Like the bottom picture here?


If so, the BX steel shielding is clamped to the steel box where the wires come in, and provides the ground, so the box itself should be grounded. The green wire from the GFCI to the box SHOULD do the job. You should get one of those 3-prong neon-lamp outlet testers (cheap) which will tell you if it's OK, open ground, or polarity reversed. No homeowner should be without one.