根据三相低压配电线路共面布置时磁场的分布规律，找出中间相单位长度导线所受安培力的大小和方向，明确低压配电线路中安培力的影响范围，为配电线路的设置提供了理论依据。%According to the magnetic field distribution when three phase low voltage power distribution line coplanar decorating,found out the intermediate phase unit length conductor by ampere force the size and the direction,made clear of low voltage power distribution line of ampere force in the sphere of influence,provided a theoretical basis for the distribution line settings.
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