2008 年紐約時報有一篇文章
Fear, but few facts, on hybrid risk
提到油電混合車可能引起的疑慮。如電磁場等影響
雖然尚未有定論，但在國外也訂立了 emi emf 的規範，對於電力系統有一些規範
事實上也有不少單位實測過 Prius
也有實測其它車種，有些電磁場強度不比油電車低
但這是因為有規範
我的疑問是，台灣油耗測試已經落伍了
電磁波/電磁場防護是否也被檢驗過了呢？
台灣準備好接納油電混合車了嗎？
sundayy wrote:
有創意的論點，希望質...(恕刪)
不好意思, 我沒實測過, 只是扒文
Electromagnetic fields in hybrid
這篇文章指出, 2002 曾經發生過某車款發現車內電磁場過高, 因為它把電池放在後面
就像現在油電混合車把電池放後面一樣
這並非無解, 加上 shielding 就可以降低許多
下面是不知名單位量測的結果 Prius
結果是右後座電磁場強度特高, 但我相信應該已解決
EMF Prius
這篇文章不清楚背景是否夠紮實, 量測是否夠精確, 也請不要過度引用這數據
但就文章所找尋到的問題點, 應該也有解決之道
我先不討論 EMF 強度與健康關係, 但是如果沒有做好 shielding, 的確有可能
讓電磁場散入駕駛空間, 要解並不難, 但希望有人把關
rogerslee wrote:
....電池放在後座, 有一些電力線會通過乘車空間下方
如果沒有做好 shielding, 實測出來的電磁場強度會比較高.(恕刪)
It's an OLD topics that had been discussed a lot in the past few years.
1. The battery wiring in the hybrids like Prius largely travels under the body where it is shielded from the inside of the car by the steel floor; and in the back, it's all also inside a metal box. On top of that, the conductors are close to each other which is intended to reduce battery loop inductance, which also has the effect of canceling out magnetic fields.
2. A MythBuster on ConsumerReport was talking about EMF levelin hybrids
From the table, you can find the EMF readings of hybrids are similar to convetional cars.
The flow of LF magnetic radiation was 24.91 mG in the right rear passenger seat that it was generated by the HV cooling fan when the HV OEM battery was overheat. The value is similar to PC using (2~20mG), electric blankets (5~30mG), and a hair dryer (10~ 70 mG)
3. In countries that have signed up to the UN ECE 1958 Agreement on vehicle construction, all vehicles must be type approved before they can go on sale. All EU members have signed up, as has the EU as an organization. Japan signed in 1998.
Vehicles and vehicle components must be tested to meet the construction regulations. Regulation 10 concerns electromagnetic (EM) compatibility. It covers both EM emissions from the vehicle and its behaviour when subjected to EM fields. The full text can be found at UNECE - Transport Division - Vehicle Regulations - Addenda to the 1958 Agreement (Regs. 1 - 20).
http://www.unece.org/trans/main/wp29/wp29regs1-20.html
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