Amp Adaptors

[JennyMom]

I am new to RVing. I am trying to book a site that has 100amp hookup. I only have 30 amp RV. where do I get an adaptor for a 100 amp to 30 amps Adaptor. I found 50 to 30 but nothing for 100 amps.

[D_E_Bishop]

My only disagreement with your reply is that the NEC is not a set of rules. They are standards, minimum standards. I think you missed my point on that but that's okay, we really agree on the need and the NEC is a great set of standards.

Oh yeah! I've worked in the field from 1954 to 1995 when I retired. While the greater part of my experience is in traffic signals, I was a licensed journeyman in the State of Oregon.

[2oldman]

time2roll wrote:
100 amp would be 2x 50 amp (NEMA 14-50 x2)

So, a 100a hookup is 2 standard 50s?

[vermilye]

Dutch_12078 wrote:
Here's the reservation system listing for the site we were on at Crooked River State Park near St Mary's, GA last month. The stanchion was a typical 20,30,50 amp park setup.

This shows what happens when the campground site descriptions are made by individuals having no idea of how their equipment works. Probably the same people who design campground showers!

[myredracer]

D.E.Bishop wrote:


I do not think that the NEC "requires" anything.

It is not a Federal Law.

"The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable
standard for the safe installation of electrical wiring and equipment in the United States."

It is not, regardless of containing the word "National" a Federal Law.

Additionally, the NEC is really the minimum standard, you can be safer than the standard for safe installation. Like wearing a belt and braces.

RVIA has "adopted" the NEC rules and the manufacturers do follow the rules, at least they should be. The only thing with that is not being an authority having jurisdiction, they can't enforce the rules, levy any penalties or modify the rules. RV parks on the other hand would have to comply with a local AHJ and NEC. Not sure where in an RV you'd want to do better than the min. NEC rules? Possibly in buildings, but not that often. The problem with electrical in RVs is substandard workmanship and there's little or nothing an RV owner can do about it.

[troubledwaters]

Where in the NEC code does it say you can't have 100 amps delivered to a pedestal with a 50 Amp RV receptacle on a 50 Amp breaker, 30 Amp receptacle on a 30 Amp breaker and 15/20 Amp receptacle on a 20 Amp breaker?

And all can be done with a 100 Amp main breaker, so, you can indeed have 100 Amp service.

[cavie]

D.E.Bishop wrote:

myredracer wrote:
It can't possibly be 100 amps if it's a CG/RV park. Code requires either a 30 amp at 120 volts or 50 amps at 120/240 volts (like in a house), or both on a site. Maybe they are incorrectly referring to a standard 50 amp site as 100 amps because a 50 amp pedestal/site has two hot legs that give you the same amount of power as 100 amps at 120 volts.

If you have a 30 amp RV, a standard RV 30 to 50 amp adapter is a good thing to have regardless. The receptacles in 30 amp pedestals can sometimes be in poor condition and you may need to plug into the 50 amps in a pedestal or move to another site with 50 amps.

Up until 2017, the code (NEC) only required a CG to have 20% of sites to be 50 amps (and only 5% in older CGs) and getting 50 amps can be difficult sometimes, if not impossible and 30 amps is usually what's mostly available.

I do not think that the NEC "requires" anything.

It is not a Federal Law.

"The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable
standard for the safe installation of electrical wiring and equipment in the United States."

It is not, regardless of containing the word "National" a Federal Law.

Additionally, the NEC is really the minimum standard, you can be safer than the standard for safe installation. Like wearing a belt and braces.

See ART #551 of the 2014 NEC. It does in fact cover the electric installation of RV parks. If the State adopts the NEC it is the law or you don't get to build it. Pretty simple. To get electricity you must get building permits etc. Power companies don't just hook up because you want it.

See NEC 551 part VI. 551.71.

[cavie]

deleted

[BillyBob_Jim]

D.E.Bishop wrote:

myredracer wrote:
It can't possibly be 100 amps if it's a CG/RV park. Code requires either a 30 amp at 120 volts or 50 amps at 120/240 volts (like in a house), or both on a site. Maybe they are incorrectly referring to a standard 50 amp site as 100 amps because a 50 amp pedestal/site has two hot legs that give you the same amount of power as 100 amps at 120 volts.

If you have a 30 amp RV, a standard RV 30 to 50 amp adapter is a good thing to have regardless. The receptacles in 30 amp pedestals can sometimes be in poor condition and you may need to plug into the 50 amps in a pedestal or move to another site with 50 amps.

Up until 2017, the code (NEC) only required a CG to have 20% of sites to be 50 amps (and only 5% in older CGs) and getting 50 amps can be difficult sometimes, if not impossible and 30 amps is usually what's mostly available.

I do not think that the NEC "requires" anything.

It is not a Federal Law.

"The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable
standard for the safe installation of electrical wiring and equipment in the United States."

It is not, regardless of containing the word "National" a Federal Law.

Additionally, the NEC is really the minimum standard, you can be safer than the standard for safe installation. Like wearing a belt and braces.

Codes seem to be an absolute at RVnet, like gravity.

2oldman wrote:
Maybe she'll come back now.

Doubt it. Probably reading the NEC, its a big book.

[2oldman]

Maybe she'll come back now.

[D_E_Bishop]

myredracer wrote:
It can't possibly be 100 amps if it's a CG/RV park. Code requires either a 30 amp at 120 volts or 50 amps at 120/240 volts (like in a house), or both on a site. Maybe they are incorrectly referring to a standard 50 amp site as 100 amps because a 50 amp pedestal/site has two hot legs that give you the same amount of power as 100 amps at 120 volts.

If you have a 30 amp RV, a standard RV 30 to 50 amp adapter is a good thing to have regardless. The receptacles in 30 amp pedestals can sometimes be in poor condition and you may need to plug into the 50 amps in a pedestal or move to another site with 50 amps.

Up until 2017, the code (NEC) only required a CG to have 20% of sites to be 50 amps (and only 5% in older CGs) and getting 50 amps can be difficult sometimes, if not impossible and 30 amps is usually what's mostly available.

I do not think that the NEC "requires" anything.

It is not a Federal Law.

"The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable
standard for the safe installation of electrical wiring and equipment in the United States."

It is not, regardless of containing the word "National" a Federal Law.

Additionally, the NEC is really the minimum standard, you can be safer than the standard for safe installation. Like wearing a belt and braces.

[Dutch_12078]

Here's the reservation system listing for the site we were on at Crooked River State Park near St Mary's, GA last month. The stanchion was a typical 20,30,50 amp park setup.

[time2roll]

"Do you need a 100Amp hookup? We have that, as well as 50Amp and 30Amp options."

http://www.bayoubendrvresort.com/

100 amp would be 2x 50 amp (NEMA 14-50 x2)

[wa8yxm]

Standard 30-50 amp dogbone. Some places advertise "100 amp" Some actually have it. (Will explain) but the 100 comes from adding the two 50 amp legs together most of the time.. That is not 100 amp.. It's 50 amp. but Well I don't wish to get into a technical discussion

100 amp; will be 2 50 amp outlets if they are honest. 1 if they are not.

[Roger10378]

Most park boxes that have 50 amp also have a 30 amp and a 20 amp receptacle in them. Not 100% but most. As long it isn't 50 amp only you don't need any adapter.

[cavie]

Forget you ever heard of 100 amps available. I'm just gonna leave that there. You should also. Your choices are 50 amps 4 wire 120/240 volts and 30 amps 3 wire 120 volts. If you rig has a 50 amp service then you have 240 volts delivered to you circuit breaker box. That is where it stops. You cannot access 240 volts there. 120 volts 50 amps to the left of the main and 120 volts 50 amps to the right of the main. You have two 50 amp 120 volt legs to use. BUT if you exceed more the 50 amps on one leg the 50 amp main will trip. There are dog bone adapters available but you will only get 120 volts out of them. 50/30 and 30/50. Also 30/20. If you plug your 50 RV into a 30 amp outlet using a dog bone you will only get 30 amps.

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