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Science

TexasProgresive

(12,653 posts)

15. One other thing about ground and grounding.

Reply to RKP5637 (Reply #14)

Tue May 2, 2017, 10:29 AM

May 2017

Beach sand is a very poor ground. A friend of mine who had a PBX business in the Bolivar Peninsular/Galveston error said that after a big T-storm they would send out vans full of parts to their customers without them calling. He said they had pulled ground rods out that were coated with glass where the lightening surge had fused the sand. He said that they would connect to the utility ground but the good ground might be miles away-very poor protection.

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I have a question maybe someone can answer re: electric shock [View all] stillsoleft May 2017 OP

If your foot is in the water on the ground, there will be circuit between the water and the ground greymattermom May 2017 #1

Yep! Right! n/t RKP5637 May 2017 #8

Right, which is one of two reasons you need to wear rubber soled shoes Warpy May 2017 #9

I'm not sure that's true. Lint Head May 2017 #2

Yep, I remember that. Also, being used to make worms come to the surface of the ground for bait. n/t RKP5637 May 2017 #6

Read and study this link below. democratisphere May 2017 #3

Excellent article !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! n/t RKP5637 May 2017 #7

2 feet can complete the circuit, if I recall correctly uppityperson May 2017 #4

Here's an interesting discussion on this. It would likely depend on the source location, RKP5637 May 2017 #5

We were given instructions on how to walk to safety from down power lines. TexasProgresive May 2017 #10

Yes! There are also sometimes lots of surface ground currents from lightening traveling on the RKP5637 May 2017 #12

I worked most of my life in telecommunications. TexasProgresive May 2017 #13

Yep, all good things to know! I think ground currents are the sneakiest things going. One thing I've RKP5637 May 2017 #14

One other thing about ground and grounding. TexasProgresive May 2017 #15

Incredible!!! I bet if you could survey the houses in the US many have very poor grounding. RKP5637 May 2017 #16

Simple terms Step potential duncang May 2017 #11

what would happen if a person slipped in water and landed on their butt stillsoleft May 2017 #17

That would probably be a worse case scenario duncang May 2017 #18

Appendix C to Section 1910.269 -- Protection From Hazardous Differences in Electric Potential mahatmakanejeeves May 2017 #19