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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
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廈門市泰尼電器有限公司
主營產(chǎn)品： AB模塊PLC |
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更新時(shí)間：2018-06-02 20:57:40瀏覽次數(shù)：135
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DCS系統(tǒng)接地降低土壤電阻率的方法
（1）改變接地體周圍的土壤結(jié)構(gòu)。在接地體周圍的土壤2～3m范圍內(nèi)，摻入不容于水的、有良好吸水性的物質(zhì)，如木炭、焦碳煤渣或礦渣等，該法可使土壤電阻率降低到原來的1/5～1/10。
（2）用食鹽、木炭降低土壤電阻率用食鹽、木炭分層夯實(shí)。木炭和細(xì)摻勻?yàn)橐粚?，約10～15cm厚，再鋪2～3cm的食鹽，共5～8層。鋪好后打入接地體。此法可使電阻率降至原來的1/3～1/5。但食鹽日久會(huì)隨流水流失，一般超過兩年就要補(bǔ)充一次。
（3）用*化學(xué)降阻劑。用*化學(xué)降阻劑方法可使土壤電阻率降至原來的40%。
：張亮（工程師） 專線：
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