Forum Discussion
myredracer
Jul 23, 2018Explorer II
bguy wrote:
Here's the concept for you.
Go to your electrical panel and note the size of the main breaker. A good many of you will find it's 200A. Now add up all the amperage of the breakers in the panel. You could get anywhere from 300 to 400 amps. How is that possible? It's all considered potential and the whole system is based on the premis that you will never have all the circuits loaded to their full capacity, but if you did the main will trip.
That's the issue with all the 50s on the 30A sites.
In the electrical world, that's termed "diversity". The issue isn't related to diversity, it's the way the Code determines load demand versus the number of sites on a pedestal and how it allows a feeder size to be substantially reduced for multiple sites on a feeder. And also how few 50 amp sites are required in a CG that results in more 50 amp RVs using 30 amp sites and drawing more power on 30 amp sites than 30 amp RVs would and than what the NEC addressed.
Most or all of us will never live long enough to see the NEC change enough to address the shortcomings or long enough to see new CGs built under any decently improved NEC rules. So unfortunately we all struggle to "survive" on grossly inadequate electrical systems in CGs.
OMG it's be so flippin' hot in OR & WA where we were just camping. In the 5 CGs we stayed in, voltage was moderate to excellent in all of them - and they were all older ones and one had upgraded at some point. It wasn't until we got back into Canada that I had to pull out the autoformer because the EMS tripped, pfffft.... :M
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