Plumber killed by opened Water main

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roger said:
If he did he didn't understand them.

This may help him.

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Roger
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This is an excelent tutorial diagram for any electrician.I feel many electricians do not understand this scenario. I however already understand the problem shown here This is the most common power delivery scenario in my area all metalic water lines. They have been changing to plastic but only on newer installs. The diagram is aces .
 
brother said:
this is what the AWWA has to say about grounding of water systems.

http://www.awwa.org/files/about/OandC/PolicyStatements/GroundingofElectric.pdf


the awwa opposes the grounding of electrical systems to pipe systems conveying dringking water to a customers premises.
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Sounds like they may not understand the benefit of this type of grounding and having a case of the 'screamin ME ME's'. The benefits being "Electrical" in nature - then general public safety be damned. i.e. thier disconnect without consent comment....

I'm sure if the NEC or NECA or some other industry association copped the same attitudes and decided to NOT ground their stuff - they would quickly realize that grounding locally does benefit them as well. As it would soon be them as responsible for the stray currents in their distinctly un-pure water. Imagine a lightning bolt hitting the local water tank or rez - then spreading through all the water filled plastic piping in the area for miles around leaving a trace arc scorch from the kitchen sink to the nearest grounded object - an outlet. They'll of course say it was the other way around....:rolleyes: Or when Ol' Lady Smith drops an iron in the sink, and shocks the bejesus out of Mr. Jones watering his lawn next door down.
 
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