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1997年6月30日,江西省万年县石镇乡下市桥村一台 50kV·A变压器匆匆投入运行,老百姓对此皆大欢喜.可是没出两天,在该变压器附近就形成了一个“神秘禁区”,又引起全村村民的恐慌和不安.现象一:该村村边有一条小河,河水清澈透底,平常村民都在河旁洗衣、洗菜.可是,自变压器在河旁边10m处“落户”后,村民们再也不下河了.因为只要手脚一碰到水面,就会产生电击感,手脚发麻.现象二:在该变压器接地线露出地面处,经常有青蛙、蜥蜴之类动物死在上面.现象三:猪、狗、羊等动物一到该地就如临大敌,畏缩不前.经石镇电管站派人到现场检查测试,发现该变压器接地线的安装不符合要求,没有按规程施工,存在以下主要问题:1 该变压器接地体只用了2根角钢垂直埋设,相距仅0.5m.规程规定:接地体不少于两根,且接地体之间的距离一般为其长度的两倍.
On June 30, 1997, a 50kV · A transformer in Shiqiao Village, Shishi Town, Wannian County, Jiangxi Province came into operation in a hurry and everyone was happy. However, within two days, a “mysterious restricted zone Phenomenon one: The village side of a small river, the river clear through the end, the usual villagers in the river laundry, washing vegetables.However, since the transformer 10m at the river ”settled" After the villagers no longer go down the river, because as long as the hands and feet touch the water, it will have a sense of electric shock, hands and feet numbness phenomenon two: the ground exposed in the transformer grounding, often frogs, lizards and other animals died Above phenomenon three: pigs, dogs, sheep and other animals once upon arrival to the enemy, flinching ... Stone Town Electric station to send people to the scene inspection test and found that the installation of the transformer ground wire does not meet the requirements, The following major problems do not exist according to the rules: 1 The transformer grounding body is only vertically laid with 2 angles, only 0.5m apart. The rules stipulate that there should be not less than two grounding bodies and the distance between grounding bodies is generally Twice the length.