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... represents 10,000 volts, so we see approximately 40,000 volts here. The other bare wire would be the return wire?
In my neighborhood, we've got a distribution line going through our neiborhood maybe two blocks away from my home and they are way up high. We have 1 acre plots and about half way back into my property is a xfmr box and underground cable brings power to our home. The phone is underground too. We weren't wired for cable and have DirecTV instead... which is fine with me.
Each insulator like the one previously posted here...... represents 10,000 volts, so we see approximately 40,000 volts here. The other bare wire would be the return wire?
It could be lower than 10kV. Typically you'll have four cables across the pole; 3 phase conductors and a grounding conductor. Since this is alternating current, each ungrounded conductor is the return conductor for another; the current is alternating its direction 60x per second with each line's phase angle 120 deg apart from the next. The fourth cable is not what you would consider a neutral conductor like you have in secondary premises wiring. You pick that up in the transformer @ each service.
If it were 10kV per line, it wouldn't be a 40kV distribution line, it would be 10kV.
Tel: line normally used cat 5 cable ( data cable).
Power line normally used mm-square of cross sectional area, grade of each cross sectional wire area.
Just kidding. The electrical will be way up on top with the phone/cable lower. If your neighborhood has above ground utilities, you can follow the cables with your eyes and see which one terminates where (electrical riser/meter, cable box, phone box).
When I was a child we had a high voltage power line on the other side of our back fence..my brothers would build forts in the legs and play all day...it never seemed to bother them. I, on the other hand, couldn't get within 50 feet of the thing with out getting dizzy, an upset stomach and headache.
When I was a child we had a high voltage power line on the other side of our back fence..my brothers would build forts in the legs and play all day...it never seemed to bother them. I, on the other hand, couldn't get within 50 feet of the thing with out getting dizzy, an upset stomach and headache.
You'd be surprised how much (and how far) stray voltage reaches from those lines. I've taken a digital meter and put one prong to earth ground and held the other one at chest level and read over 50 volts while standing underneath the lines.
are you talking inside wire? I.W.? which can be level 3 /cat 3 wire also. The topic was not about inside wire...
Why do those who fail to read the original post offer inane comments that have nothing to do with the topic?
see original post question >> "
Originally Posted by kibblesandbits That was very helpful--thanks so much.
So my other question is: one reads so much about how living near power lines is very dangerous for health reasons--would this also apply to these smaller residential poles, or would it only apply to high voltage power lines (the really big ones--the ones that you can hear buzzing when you walk under them).
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Read more: //www.city-data.com/forum/scien...#ixzz1WUQpUVQV
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Quote:
Originally Posted by winnk2003
Tel: line normally used cat 5 cable ( data cable).
Power line normally used mm-square of cross sectional area, grade of each cross sectional wire area.
People should actually read a post before making comments
Originally Posted by kibblesandbits That was very helpful--thanks so much.
So my other question is: one reads so much about how living near power lines is very dangerous for health reasons--would this also apply to these smaller residential poles, or would it only apply to high voltage power lines (the really big ones--the ones that you can hear buzzing when you walk under them).
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see he makes mention and questions whether there is a similarity between the residential poles and the " really big ones that you can hear buzzing..."
our educational system is in failure.
Quote:
Originally Posted by southgeorgia
My understanding of that post was to say living near the lower voltage residential won't cause adverse health problems.
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The primaries you see in a residential area are typically going to be 7.2kv.
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our educational system is in failure. 
