文(wen)章來源(yuan)：中國能源(yuan)建設集團有限公司 發布(bu)時間：2013-05-03
近日，中國能源建設集團廣東省電力設計研究院設計的500千伏惠茅線改造工程順利竣工投產，比原計劃整整提前了65天。該工程被稱為緩解廣東用電緊缺的“解渴工程”，是中國南方電網公司重點電網建設項目。隨著送電大通道的打通，5月份廣東將增加供電能力250萬—300萬千瓦，彌補廣東電力1/3缺口。廣東院在開展工程設計的過程中實現了一系列的技術創新。
據了解(jie)，今年廣(guang)東(dong)全(quan)社會最高負荷將達8700萬(wan)千(qian)瓦，二季(ji)度將是廣(guang)東(dong)最缺電(dian)(dian)(dian)的時期，預計(ji)(ji)最大(da)電(dian)(dian)(dian)力缺口將達950萬(wan)千(qian)瓦，這項“解(jie)渴工(gong)程”工(gong)期緊(jin)、任務重。廣(guang)東(dong)院在確保工(gong)程質量(liang)的同(tong)時，加大(da)投(tou)入，銳意創新(xin)，攻克了多個(ge)設計(ji)(ji)難關(guan)，創造了諸多南方電(dian)(dian)(dian)網的“第一”：500千(qian)伏電(dian)(dian)(dian)壓等級交流線(xian)(xian)(xian)(xian)(xian)路(lu)中(zhong)首(shou)次(ci)采(cai)用(yong)(yong)(yong)六分裂大(da)截面導線(xian)(xian)(xian)(xian)(xian)，輸(shu)送能(neng)力提高4倍；首(shou)次(ci)全(quan)線(xian)(xian)(xian)(xian)(xian)采(cai)用(yong)(yong)(yong)籠式(shi)剛(gang)性(xing)跳線(xian)(xian)(xian)(xian)(xian)，能(neng)減少80%以(yi)上因風吹跳線(xian)(xian)(xian)(xian)(xian)造成跳閘的幾率，大(da)大(da)提高供電(dian)(dian)(dian)可靠性(xing)；首(shou)個(ge)全(quan)線(xian)(xian)(xian)(xian)(xian)普通地(di)線(xian)(xian)(xian)(xian)(xian)金(jin)具(ju)(ju)采(cai)用(yong)(yong)(yong)預絞(jiao)式(shi)金(jin)具(ju)(ju)，具(ju)(ju)有應力分布均勻的特點，能(neng)較好地(di)保護地(di)線(xian)(xian)(xian)(xian)(xian)；首(shou)個(ge)采(cai)用(yong)(yong)(yong)“燕翅形”鐵塔的交流工(gong)程，使全(quan)線(xian)(xian)(xian)(xian)(xian)節(jie)省塔材將近900萬(wan)元，更安全(quan)美觀。通過優化設計(ji)(ji)，工(gong)程建設對沿線(xian)(xian)(xian)(xian)(xian)百姓生活的影響被降至最低。據統計(ji)(ji)，惠茅全(quan)線(xian)(xian)(xian)(xian)(xian)控制用(yong)(yong)(yong)電(dian)(dian)(dian)面積6.48平方公里，節(jie)約(yue)土(tu)地(di)19.44平方公里，土(tu)地(di)資源(yuan)利用(yong)(yong)(yong)率提高75%。