項目單位： 國家電網霍山供電公司

　　起止時間： 2014 年 1 月 至 2015 年 1 月

　　項目負責人：吳舒玉

　　通信地址：霍山縣衡山鎮迎駕大道 105 號

　　郵政編碼：237200

　　聯系電話：5107642

　　傳 真：5107756

　　一、復合材料電桿應用的目的和意義

　　針對大別山區輸電線路建設、改造、搶修工程中水泥、鋼管塔電桿運輸、安裝勞動強度大、成本高、安全系數低、工時長的困難，我們一直希望在新型材料應用方面找到替代傳統的水泥電桿、鋼管電

桿的新型產品，以解決山區電網（尤其是配電網）的建設、搶修建設效率、提高安全系數；降低運輸難度和運輸成本；提高抵御自然災害的能力。新型復合材料電桿的問世解決了山區輸電線路建設、運維、

搶修難題，開辟了新的途徑，是電桿材料重要的技術進步。

　　二、應用地點簡況

　　2014 年結合山區農網改造、減少山區冰雪樹木倒伏使電桿脆斷科技項目的研究，在大別山區佛子嶺變電站 10 千伏通水灌 04 線 138#和 151#桿線路大關山山頂（海撥高度 300 米、海撥高差近 90 米）的位置，使用 12 米復合材料電桿 2 根。其中 138#桿作為大跨檔耐張桿使用（檔距近 400 米）、151#桿 10 千伏線路普通耐張使用，目前，電桿狀況良好。

　　三、應用體會

　　1、運輸方便。12 米復合材料電桿重量輕，山區運輸方便，大幅度降低運輸成本和人力運輸用工，縮短施工時間。搶修便捷，快速恢復供電。

　　2、施工簡易。12 米復合材料電桿施工方面，不用重型機械，基礎施工和普通水泥桿一樣，在山區硬土環境，挖兩米坑直埋。

　　3、強度大，可設計大檔距，減少用桿根數。

　　4、高恢復性。復合材料桿在強大外力作用下彎曲后，能很快地恢復原直桿。遠高于普通鋼材的抗屈服強度。同時具有優良的耐疲勞性能。該特性能很好抵御臺風、冰雪覆蓋、竹木倒伏等自然災害侵襲?？棺匀粸暮δ芰h遠超越混凝土桿和鐵塔。

　　5、耐候性好。復合材料桿幾乎適用于各種氣象條件而不改變性能，復合材料桿塔可-50℃～+80℃之間長期運行。通過添加劑可以提高它的阻燃性能、熱穩定性能、耐腐蝕性能、耐酸堿性能、抗輻照性能。理論使用壽命長達 80 年。

　　6、電絕緣性好。由于電桿本身是絕緣體，感應雷電不會引導到線路上，較少了雷電跳閘次數。復合材料桿電氣絕緣性能優良，可以減少導線與塔身間隙，使輸電線路結構變得更為緊湊，可減少線路走

廊寬度。這在土地資源稀缺，線路走廊的獲得日益困難的情況下尤其有意義。

　　綜上：復合材料塔用于輸電線路提高線路安全運行水平，桿塔輕便，大幅度地降低桿塔的運輸和組裝成本；桿塔的耐腐蝕、耐高低溫、強度大、可恢復性可降低線路的維護成本，因此，復合材料電桿是山區供電企業的福音。

I. Purpose and Meaning of Application of Composite Pole

      Due to high labor intensity, high costs, low safety coefficient and long man-hour of transportation and installation of concrete and steel tube tower poles in the construction, transformation and repair engineering of electric transmission line in the Dabie Mountain Area, we always hope to find out a new product to replace the traditional concrete pole and steel tube pole in terms of the new material application to promote the construction of the grid (especially the power distribution network) in the mountainous area, enhance the repair efficiency and safety coefficient, reduce the transportation difficulty and transportation costs and enhance the capacity to withstand the natural disasters. The appearance of new composite pole solves the construction, operation, maintenance and repair problems of the electric transmission line in the mountainous area and opens a new path, which is an important technical progress of the pole material.

II. Overview of Application Site (which shall be filled in by the Company in accordance with the actual situation)

     With combination of the study on rural power grid transformation in the mountainous area and technical project of reducing the pole brittle failure due to ice and snow or falling of trees in the mountainous area, two 12m composite poles were used at top (with the altitude of 300m and altitude difference of about 90m) of Daguan Mount of No. 138 and No. 151 of 10kV Tongshuiguan 04 line of Foziling Substation in Dabie Mountain Area in 2014, with No. 138 pole used as a long-span tension resistant pole (with the span of about 400m) and No. 151 pole used as the common tension resistant pole of 10kV line. At present, the pole is in good working conditions.

III. Application Experience

   1. Convenient transportation. The weight of 12m composite pole is light and it is easy to be transported in the mountainous area, which will greatly reduce the transportation costs and labor of human-powered transportation, shorten the construction time, make repair easy and quickly recover power supply.

2. Easy construction. The heavy-duty machinery is unnecessary to construct the 12m composite pole and its fundamental construction is the same with that of the common concrete pole and the composite pole may be buried by digging a 2m pit in the environment with hard soil in the mountainous area.

3. High intensity and the large span may be designed to reduce the number of poles to be used.

4. Easy restorability. The composite pole may quickly recover to its original state after it is bent under strong exogenous action, whose anti-yield strength is far higher than that of the common steel. Meanwhile, it has excellent fatigue resistance property, which may well withstand such natural disasters as typhoon, cryoconite cover and bamboo falling. Its natural disaster resistance property is far better than that of the concrete pole and iron tower.

5. Excellent weather ability. The composite is almost applicable to various meteorological conditions without property change and the composite pole tower may work at the temperature of -50℃~+80℃ for a long time. The additive may enhance its flame retardant property, thermal stability, decay resistance, acid and alkali resistance and resistance to irradiation. It theoretical service life is 80 years.

  6. Good electrical insulating property. Because the pole is an insulator, the inductive thunder and lightning will not come to the line, reducing the time of trip resulting from thunder and lightning. The composite pole has excellent electrical insulating property, which may reduce the clearance between the wire and tower to make the electric transmission line structure more compact and reduce the width of line corridor. Therefore, it is meaningful in the case of difficult to obtain the line corridor and rare land resources.

To sum up, the composite tower is applied to the electric transmission line to enhance the safe operation level. The light pole tower greatly reduces its transportation and assembly costs; its corrosion resistance, high and low temperature resistance, high strength and restorability may reduce the maintenance costs of the line. Therefore, the composite pole is good news for the power supply enterprises in the mountainous area.