上海煤气
上海煤氣
상해매기
SHANGHAI GAS
2011年
4期
13-15
,共3页
埋地钢管%输电线路%交流干扰%设计施工%预防措施
埋地鋼管%輸電線路%交流榦擾%設計施工%預防措施
매지강관%수전선로%교류간우%설계시공%예방조시
buried steel pipe%transmission pipeline%AC disturbance%design and construction%preventive measure
高压输电线路上交流电产生的电磁场会对邻近钢质管道产生干扰,在设计和施工阶段,及时发现并采取预防措施,可以大大减少交流干扰导致的安全风险。施工过程中电塔下的管条及时接地,可消除容性耦合导致交流干扰的风险;改造电塔接地体并增埋绝缘板,可消除阻性耦合导致电弧击穿的风险;预先采取排流措施,可消除感性耦合导致交流腐蚀的风险。
高壓輸電線路上交流電產生的電磁場會對鄰近鋼質管道產生榦擾,在設計和施工階段,及時髮現併採取預防措施,可以大大減少交流榦擾導緻的安全風險。施工過程中電塔下的管條及時接地,可消除容性耦閤導緻交流榦擾的風險;改造電塔接地體併增埋絕緣闆,可消除阻性耦閤導緻電弧擊穿的風險;預先採取排流措施,可消除感性耦閤導緻交流腐蝕的風險。
고압수전선로상교류전산생적전자장회대린근강질관도산생간우,재설계화시공계단,급시발현병채취예방조시,가이대대감소교류간우도치적안전풍험。시공과정중전탑하적관조급시접지,가소제용성우합도치교류간우적풍험;개조전탑접지체병증매절연판,가소제조성우합도치전호격천적풍험;예선채취배류조시,가소제감성우합도치교류부식적풍험。
The electro magnetic field which is produced by AC in the high voltage transmission pipeline can disturb the steel pipeline in the vicinity, we can reduce this safety risk greatly if we can find it and take preventive measures in the design and construction phase. For example, the ground connection of the strip under the pylon in time can erase the risk of AC disturbance caused by capacitive coupling; the method of improving grounding body of pylon and laying additional insulating board can avoid the risk of arcing over caused by resistive coupling; and the drainage measures in advance can prevent the risk of AC etching caused by inductive coupling as well.
