Electronic Earthing System

This sort of question has come up before on CR4 a number of times. You may need to alter the backfill composition to retain more moisture, add an additional moisture holding filler compound or change the pit design.

Try a search on CR4 for earth pit for more detailed answers such as the following thread. More detailed answers can be found in your local standards and codes or online.

http://cr4.globalspec.com/thread/67973#comment718807

Have you taken into account the ambient and ground temperature may be higher than expected in this application which may be increasing the water evaporation in the pit and hence possibly reducing the pit resistance?

Plumb all the urinals in the plant to empty into your earthing pits.

It is assumed that the location is difficult to plumb piping to for any liquids.

Perhaps it is assumed that they just don't want to spend money on properly grounding their equipment nor paying someone who know how to do it property.

Well, in that case, let's hope the safety inspectors (if any) are cheap to bribe.

I hate to sound prejudiced, but an Anon OP is someone who KNOWS that they're asking for something they should already know, or want free advice on when the only REAL advice of worth is "Hire an Engineer locally and pay him/her to solve the problem."

It's bad enough when we get people asking how to set up dangerous equipment when we can SEE that they're from The Land that Occupational Safety and Health Forgot. When the OP is AP#1, we have no clue where he is, or what regional safety commission he's trying to do an end-run around.

Please confirm that the male includes the female and vice versa.

Yes, unless I am referring to a specific person of known gender, any uses of 'he,' 'she' '(s)he,' etc. can be assumed to be the genderless "He, she, or it.⁽¹⁾" When being sarcastic, I'm an equal-opportunity offender.

Notes

1. "He, she, or it" has been popularly abbreviated by writers and satirists as h/sh/it, pronounced as "Horsesh-⁽²⁾"
2. I may be an equal-opportunity offender, but I prefer not to use foul language in semi-public forums. Too much 'splatter' landing on innocent bystanders.
   

ROFLMFAO!

Sorry if That offends anyone equally!

Maybe they should equally invite the male AND female employees to piss on the earthing pits!

See, we can get along, as long as things don't get political.

I will be SO glad when this election cycle is over. Canada wrapped up theres in 11 weeks, and that was a record for long elections for them, the US election cycle is feeling like it's been going on for 11 YEARS.

I want to quit thinking about idiots ruining my life for money and power.

We most definitely concur on that point. I hate it. It is time for some serious term limits, and putting all the old dinosaurs in the Senate out to pasture, or a Petri dish

you really had some sense of humor sir, good suggestion though.

Ask any Signal Corps soldier about that . . . . . very effective.

Hover cursor over picture and left click mouse.

Any way out will do in a pinch.

Tip a tanker-load of seawater into the pit.

Have the system designed properly by an Electrical Engineer instead of an Anonymous Poster. Electrical Engineers will know of the regulations prevailing in that locality and will design to suit.

Have you used crushed or granulated slag, crushed slag doesn't hold moisture very well.

Maybe the problem is the test! More times than I care to think about, I've tested the "test" only to find out that the test equipment or the operator was the problem.

Take a look at another finished site to see if you get a different result. Better yet, call the metering equipment manufacturer for a proper description of how to use the equipment or how to perform the test.

I forget, is bentonite always recommended for earthing pits? I think that may be your problem, as it may have sealed the pits from conduction to moist soil around that area.

If the earthing pits have become dry (for one of a number or reasons), apply water injection and start over.

I do not recall any requirement for the use of copper plating in earthing pits at our power plants, but there again, if this is some giant electric arc furnace, you might have a real problem until you put some really large earth grounding in place, and you may have to get rid of the clay part of the pits.