How would an open neutral affect a 30 amp service? Are there risks from this for us lowly 30 amper folks?
Depends on where the open neutral is, if it's in the 30 amp rec or anyplace between the rec and your panel you will no have power, if it's in the 240 volt anywhere before the pedestal the voltage on either legs will be floating up an down depending on the load on each leg. So one minute you may have high voltage and the next low voltage.
Denny
2000 F350 SC DRW V10 4.30 gears, Banks Cat Back, BrakeSmart, Air Lifts
2003 HitchHiker Premier 35FKTG 215/75/17.5 Sumitomo tires
Do you mean open ground?
If there is no ground, your RV chassis will probably be at 60v. This will be a shocking experience when you touch a metal part and are standing outside while barefooted.
Get a volt meter and measure from any metal to any outside ground, you will be shocked at what you find.
You need a grounds wire.
As others say. if you mean no neutral, you will have no power.
Depends on where the open neutral is, if it's in the 30 amp rec or anyplace between the rec and your panel you will no have power, if it's in the 240 volt anywhere before the pedestal the voltage on either legs will be floating up an down depending on the load on each leg. So one minute you may have high voltage and the next low voltage.
Denny
X2
2009 Fleetwood Icon 24A
Honda Fit dinghy with US Gear brake system
LinkPro battery monitor - EU2000i generator
Open neutral, in the RV, Cord, Plug or Pedistal on 30 amps = OPEN circuit, no power, your 3-light outlet tester will show a good ground but that is the only LIGHT that will LIGHT.
Open elsewhere in the park can, depending on where, cause a lot of fun. *IF* the line is shared with 50 amp rigs. or with other 30 amp rigs on the other leg.
OPEN GROUND puts the chassis of your unit at "Up to 60 volts" depending on so many things I won't list them all. But that is not the neutral.
Nothin adds excitment like something that is none of your business
Kenwood TS-2000 housed in a 2005 Damon Intruder 377
I would think that #2 and #3 are the same situation. In #2, the neutral and one 50 amp leg are connected to behind the pedestal panel. In #3, the same connection is made in front of the panel by the adapter. If there was only one load in the park all 3 scenarios would give no power, but with other rigs plugged in (or outbuildings, lights, etc.) they will be feeding power from a hot line onto the open neutral, so it can attain pretty much any random voltage between 0 and 240. Even in scenario #1, depending on how the park is wired and where other rigs are plugged in, damage could occur. This is kind of a tough situation to picture all at once, so if I have it wrong, I accept any civil corrections.
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