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Old 11-23-2012, 08:53 PM   #1
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Ground outlet to telephone line?


I have an ungrounded outlet right next to an old-style four pronged telephone jack. With a temporary setup I get a good ground per my outlet tester when grounding the outlet via the grounding prong in the telephone jack. I want to use a 1amp AC/DC converter on this outlet, and I want it to be grounded. Can I take advantage of this nearby phoneline ground or is the wiring too small for a safe ground for this converter?

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Old 11-23-2012, 09:06 PM   #2
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Ground outlet to telephone line?


NO you can not. The telephone wire is probably only #22 or 24. Much too small to use for a power line ground.

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Old 11-24-2012, 12:54 PM   #3
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Ground outlet to telephone line?


NO you can't do that!

Not safe!

Warning, Danger, etc.!!!

Have an electrician pull a new wire from the panel and be sure the panel grounding is "up to snuff".
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Old 11-24-2012, 01:57 PM   #4
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Ground outlet to telephone line?


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Originally Posted by owmytoe View Post
With a temporary setup I get a good ground per my outlet tester when grounding the outlet via the grounding prong in the telephone jack.
There is NO ground prong on a tel jack.
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Answers based on the 2008 & 2011 NEC.
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Old 11-24-2012, 08:18 PM   #5
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Ground outlet to telephone line?


Some telephone blocks have as big as an 8 gage ground. Better check the size!
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Old 11-24-2012, 08:22 PM   #6
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Ground outlet to telephone line?


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Originally Posted by neo565 View Post
Some telephone blocks have as big as an 8 gage ground. Better check the size!
Yes, possibly where the service enters the house, but sure as heck not at a telephone jack! He's talking about an old 4 prong jack, sot a service entrance block!

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