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Old 12-09-2010, 09:03 AM   #15
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Join Date: Nov 2009
Location: Big Bear Ca.(Sugarloaf)
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Originally Posted by Gary RVRoamer View Post
Here is an explanation of the open neutral problem:

Main Neutral Open - Main Hot Open

And an example with an RV:
Open Neutral
Great informative links. Thanks Gary

Mark & Carole
What a long strange trip it's been.

No longer RVing. Happy Trails to you.
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Old 12-09-2010, 03:15 PM   #16
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Join Date: Dec 2010
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hee hee I even saw two separate 30 amp mh's connected to the same pedestal in a park get damaged by a floating, intermittent neutral common to the two 30a otulets.
Get a fancy very costly 300 to 500$ protector that will instantly cut power off if voltage goes above 135 volts or below 108 either on a single 30 A leg or on either legs of a 50 A system. Pierre.

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Old 12-09-2010, 10:52 PM   #17
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Join Date: Mar 2009
Location: Florence, Oregon
Posts: 235
Yes, modern EMS devices are designed to protect your RV from all the electrical issues found in parks, including the open neutral that started this discussion.

The Progressive unit found at: EMS-LCHW50C is often considered the gold standard for these devices. Its on my budget list.

Ed & Lynn on the Oregon Coast
2018 Winnebago Fuse 23A
2006 Scion xA toad
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