Minutus

Hi Shannon, The link is accurate. I have only run into Knob and tube wiring once. I did a short 1 year apprenticeship on residential construction and the rest of my time was in commercial and research and development buildings. The only time magnetic fields and electrical fields were a real concern and had to be addressed were in top secret buildings with a lot of computer components that were highly sensitive. We had special insulated cable, and the conduits had to be installed so no one could “listen” in on anything. Other than that the industry does not seem to be concerned with any energy fields.

All circuits are required to be grounded, if in higher voltage (277volt) they are not, you would be having ground fault problems, circuits tripping, lights dimming, and shocks. In 120 volt circuits there is a risk of electrocution. Some older homes are not grounded.

To ground a pipe? Hmm I was thinking conduit, and that is automatically grounded by grounding the panel. In homes the ground goes to the copper water pipe, so is the question is the home properly grounded? That is the only pipe I can think of, and if the electrical system is not properly grounded I don’t know if there is an increase in Electrical fields and or electromagnetic fields.

In a new house construction, yes, we run the cable in parallel from the panel, and then branch off to get to the devices in the given circuit.

I hope I explained well. :-0

Mary Salvador
From: Shannon Nelson shannonecn135@gmail.com [minutus]
Sent: Friday, October 4, 2019 1:05 PM
To: minutus@yahoogroups.com
Subject: Re: EMF exposure? Re: [Minutus] loss of appetite after stroke
I did a quick google, and this link seems to address some of the issues--I'll read it better in a while. It references "electrical fields", not sure if that's referring to the same thing I was calling "magnetic fields" (and yes I know they aren't the same!).

https://healthybuildingscience.com/2013 ... ring-best/
It refers to houses built more than 50 years ago -- and my information is from 30 years ago, so maybe that's the issue.

However, in my current, very crappily-built condo, there are INSANELY high magnetic fields in some awkward places such as under and around the kitchen table / overflow "office" space. I'm told that might be due to errors in grounding wires onto pipes. Does that make sense?

Hi Tanya! We are a rare breed! LOL

I do recall that the doorbell wiring was twisted, and it was 24 volt. We did not cover anything in apprentice class about the health hazards of Electromagnetic fields. I do know of one man who was working on a substation, carrying a bundle of conduit, it got too close to a transmission line and he was electrocuted, he survived but his heart was never the same, he passed away from heart failure far too soon. I was always careful around high voltage, (12KVA and up). I was in many a vault with it, some people said that the hair on their arms and head stood up when near it, but I never experienced that.

Interesting that I have a very high electromagnetic field around me, I crash computers everywhere I go and I have often wondered if it is because of my being around electricity and being shocked a lot! LOL

Mary
From: Tanya Marquette tamarque@earthlink.net [minutus]
Sent: Friday, October 4, 2019 9:35 AM
To: minutus@yahoogroups.com
Subject: Re: EMF exposure? Re: [Minutus] loss of appetite after stroke
Hi Mary

Good to meet another tradeswoman retired.

You responded to Shannon before I saw her post. I have only seen twisted wires

on some entry house cable as I recall. Most of my work was residential. Agree that Romex and

BX cable are single wires wrapped in some insulation, today some kind of vinyl/plastic sheathing,

and then all covered with some kind of vinyl sheathing or metal.

I really don't know what Shannon's information was about but people say all kinds of things (not referring

to Shannon but the information she was given years ago).

t

Again thanks to you both — I’ll combine questions/answers… Yep Tanya, I think that’s what the person I was talking to was saying, that e.g. copper water pipes would be used as a grounding source. He was saying other things, about how if done like this, then theres on (or not much) magnetic field; but if not, then could be a strong field (like ours). I didn’t understand that part tho.

Okay, here’s another question… Back to that page talking about the whatever-wires “shielding from electrical fields” — that doesn’t make sense. Moving current (electrical) gives rise to a field around it — perpendicular to the current, if memory serves me well — and that field is magnetic, not electrical.

And conversely, a moving magnetic charge gives rise to an electrical field, again perpendicularly around the course of the movement — I think. That part I’m less sure I’m remembering right. (That second, of course, is how an electromagnet works.)

Forgive me if I’m geeking out a bit here, but — surely the fields we’re talking about, as “coming off of” or surrounding electrical wiring are NOT “electrical fields”, but instead “magnetic fields”? I guess the reason I’m asking, is that if that if electrical wires are surround by electrical fields, then I’m even more confused than I already knew I was. ???

Shannon thanks for asking these questions. It’s very hard for me to think about the concern here.
Ellen