架空電纜距離屋企幾遠先算安全?

2010-04-25 10:30 pm
架空電纜距離屋企幾遠先算安全?

回答 (3)

2010-04-26 10:36 pm
There are specifications given in the Hong Kong Planning Standard and Guidelines, published by the Planning Department, for clearance of overhead power cables. You may refer to the Guidelines through the link below:

http://www.pland.gov.hk/pland_tc/tech_doc/hkpsg/full/ch7/ch7_text.htm

You could read para.2.3.6 and 2.3.6. For 400kV cable, the safety vertical distance is about 7.6 m above ground..

However, for protection of health risk, the inertnational standard recommended by the International Commission on Non-Ionizing Radiation Protection has been incorporated in the above Guidelines (para. 2.3.10 and 2.3.11). The places where public is accessible should have electric field intensity not higher than 5 kV/m and magnetic flux density not higher than 100 uT (micro-Tesla).
2010-04-26 4:03 am
就算距離100km.
你屋企都係會有220V,
有EM Wave既影響,,避吾到,


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