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Old 12-09-2010, 09:03 AM   #15
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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 RVM54
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2002 Fourwinds 5000 26Q 496 ci. Chevy towing 2004 Jeep Wrangler, 2000 Harley 96in. Soft tail
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Old 12-09-2010, 03:15 PM   #16
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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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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
2013 Tiffin Allegro 34TGA
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