rv park, lights flickering, bonding ??

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rickl

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hi,
i went on a service call yesterday about lights flickering in a rv. Here's the situation: it's a small park (5, 30 amp 120 volt rv pedastals);they have 2 services. Both are 50' from transformer, one feeds the 5 rv pedastals and the other feeds the pump house; the lights flicker at both services. I checked all the connections, didn't find anything wrong, the voltage was 108 hot-ground 216 hot-hot at the panels. The owner has the power company coming out to check their side of the meter.has anybody come across anything like this before or have any ideas what would cause this problem??

Here's the second question, the service to the rv park comes into a meterbase with a 200 amp main breaker, then it feeds a 200 amp panel (they're mounted back to back on 6x6 pole with pvc conduit). In the panel there is no egc or gec and the neutral is isolated from the grounding bar. The neutral is bonded to the gec at the metermain, so I installed a egc from the metermain to the grounding bar in the panel. But now after reading 551.54 i'm having second thoughts on my installation - did I do it right or wrong. thanks for any insight.
 
Re: rv park, lights flickering, bonding ??

rickl,

551.76 Explains what is required at the distribution panel or transformer.

frank
 
Re: rv park, lights flickering, bonding ??

so my installation is correct?, also without having egc or a gec to the rv could this cause damage to the inverter. the owner just replaced it,
 
Re: rv park, lights flickering, bonding ??

the light flickering was caused by a faulty transformer, power company was replacing it today as i was leaving.
 
Re: rv park, lights flickering, bonding ??

During the summer of 1994 my employer has the same problem with the 2 services over at his old plant. I took some voltage measurements and determined that since the flickering affected bothe services it had to be in Ohio Edison's stuff.

I took down the number that Ohio Edison had on their transformer and called up Ohio Edison. They transferred me to the power dispatcher and I gave her the information that I had.

20 minutes later a line crew called back and said, " A crow flew into one of the insulators over at the Opportunity Park substation. Would you like for us to send it over for lunch?"

13,200Y23,000 volts will most definitely stop a crow from sticking his nose in the wrong place a second time.
 
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