Power Pedestal Connections
We read an online RV newsletter that comes out each Saturday. Electricity is often a topic of discussion. Today there was a survey to try to tell what percent of readers have experienced some sort of ...
Forum Discussion
Look at a two wire appliance. Can you see any conductive exterior parts that can be compromised by contact to line voltage inside the appliance?
The extra earth connection was done because an eight gauge feeder circuit traveled 125' from the service drop panel but only a 12 gauge earth wire was used. Too small an earth for such a long distance. The eight gauge was continued as a manifold feeder for the sites. I used special 10-amp breakers at each pole to limit current. CFE wanted eight hundred thousand pesos to bring tres hilos (3-phase) 1,100 volt service to the nearest power pole. Then I would have needed a four thousand dollar 100 amp WYE transformer and revamp my end of the system 100%. Then I could have offered 30-amp site service. But RV'ers grumbled at the 16 dollar per night fee as it was.
I wish life was dominated by "should be" absolutes. But it isn't. Especially not down here. What I did for site grounding was tested and maintained. When is the last time you saw a "code" USA earth grounding rod actively tested and verified at full circuit amperage?
On any THREE wire feed circuit electronics, open up the circuit to expose the board. Now look at circuit protection component connections. All the MOVs are connected line to earth ground. No earth ground zero circuit protection. None. Zero.
Because I was there to verify and maintain a shallow depth ground system I provided it with confidence. I assume anyone with the ability to follow simple guidelines and instructions to be capable of doing the same with their own rig.
The extra earth connection was done because an eight gauge feeder circuit traveled 125' from the service drop panel but only a 12 gauge earth wire was used. Too small an earth for such a long distance. The eight gauge was continued as a manifold feeder for the sites. I used special 10-amp breakers at each pole to limit current. CFE wanted eight hundred thousand pesos to bring tres hilos (3-phase) 1,100 volt service to the nearest power pole. Then I would have needed a four thousand dollar 100 amp WYE transformer and revamp my end of the system 100%. Then I could have offered 30-amp site service. But RV'ers grumbled at the 16 dollar per night fee as it was.
I wish life was dominated by "should be" absolutes. But it isn't. Especially not down here. What I did for site grounding was tested and maintained. When is the last time you saw a "code" USA earth grounding rod actively tested and verified at full circuit amperage?
On any THREE wire feed circuit electronics, open up the circuit to expose the board. Now look at circuit protection component connections. All the MOVs are connected line to earth ground. No earth ground zero circuit protection. None. Zero.
Because I was there to verify and maintain a shallow depth ground system I provided it with confidence. I assume anyone with the ability to follow simple guidelines and instructions to be capable of doing the same with their own rig.
