l******c 发帖数: 2555 | 1 急问:
铁塔上的肯定是高压线,直接入屋的肯定不是,介于两者之间的尼?
比如城市中的供电线,比一般的线离地面高一倍。 |
c**d 发帖数: 3888 | 2 Hard to say. You can call PG&E. Get an EMF meter too |
p***e 发帖数: 1318 | 3 You can guess the voltage of power lines by counting the number of stacked
ceramic disks. Each disk is 10kV. The more, the higher.
【在 l******c 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 急问: : 铁塔上的肯定是高压线,直接入屋的肯定不是,介于两者之间的尼? : 比如城市中的供电线,比一般的线离地面高一倍。
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p*******r 发帖数: 152 | 4 我是这方面的工程师。 你发个transmission line tower的图上来 , 我告诉你答案 |
l******c 发帖数: 2555 | 5 thanks, I have no picture right now,
looks like this
1905 Los Gatos Almaden Road, San Jose, CA, United States
in maps.google.com
streat view, easily to see this kind of power line
比一般的入屋线高一倍,又不是tower。 SanJose 许多地方都有
please reply
【在 p*******r 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我是这方面的工程师。 你发个transmission line tower的图上来 , 我告诉你答案
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l******c 发帖数: 2555 | 6
【在 p*******r 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 我是这方面的工程师。 你发个transmission line tower的图上来 , 我告诉你答案
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l******c 发帖数: 2555 | 7
【在 l******c 的大作中提到】![](/moin_static193/solenoid/img/up.png)
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c*****r 发帖数: 8227 | 8 between 2.4kv and 35kv,most likely 12kv
对人而言,属高压,触则亡。
但是,还没有高到有强(有害)电磁辐射的强度 (115kv以上)
【在 l******c 的大作中提到】![](/moin_static193/solenoid/img/up.png)
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R*********r 发帖数: 1855 | 9 电磁辐射强度是由电压决定的?你的物理是袁腾飞教的?
【在 c*****r 的大作中提到】![](/moin_static193/solenoid/img/up.png) : between 2.4kv and 35kv,most likely 12kv : 对人而言,属高压,触则亡。 : 但是,还没有高到有强(有害)电磁辐射的强度 (115kv以上)
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l******c 发帖数: 2555 | 10 high voltage means more electrical power transmission overall.
not the theory.
【在 R*********r 的大作中提到】![](/moin_static193/solenoid/img/up.png) : 电磁辐射强度是由电压决定的?你的物理是袁腾飞教的?
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p***e 发帖数: 1318 | 11 the right part of the beam in the picture is probably a sign says "high
voltage". take out a telescope and you should be able to see the signs.
it is not very high voltage though since there are just a few insulation
disks.
【在 l******c 的大作中提到】![](/moin_static193/solenoid/img/up.png)
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l******c 发帖数: 2555 | 12 yes, there is a yellow sign that says High Voltage.
Recently, I visited two open houses, next to these kinds of power line,
owner died of cancer, hence the price is a little bit lower.
【在 p***e 的大作中提到】![](/moin_static193/solenoid/img/up.png) : the right part of the beam in the picture is probably a sign says "high : voltage". take out a telescope and you should be able to see the signs. : it is not very high voltage though since there are just a few insulation : disks.
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