1 配变及低压电网的接地装置。符合标准的接地装置能有效地保证人身安全,供用电设备正常工作,能使雷电流顺利泄人大地,避免雷击损坏电气设备。国标、行业标准对各类接地装置的阻值、使用材料、施工工艺等均有详细规定。但由于在一般情况下,其阻值不符合要求并不影响供、用电,使人们忽视了它的重要性,明知阻值不符合要求也不作处理。我县这几年每年烧坏的变压器在80～130台之间,约占全县配变台数的10％～15％。其中大部分为雷击所致,足可以说明问题的严重性。农网建设、改造中应按标准搞好 1 distribution transformer and low-voltage network grounding device. Meet the standard grounding device can effectively ensure personal safety for the normal operation of electrical equipment, lightning can flow smoothly into the earth, to avoid damage to electrical equipment by lightning. GB, industry standards for all types of grounding device resistance, the use of materials, construction techniques have detailed provisions. However, in general, its resistance does not meet the requirements does not affect the supply, electricity, so that people ignore its importance, knowing that the resistance does not meet the requirements are not addressed. In recent years, our county transforms the burned-out transformers every year between 80 and 130 sets, accounting for 10% to 15% of the total number of transformers in the county. Most of them are caused by lightning strikes, enough to illustrate the seriousness of the problem. Rural network construction, transformation should be done according to the standard