The invention discloses a sectional insulator for a 25kV electrified railway contact network. The sectional insulator comprises two composite insulators, long slide ways with an arc striking angle gap, short slide ways with an arc striking angle gap and an auxiliary insulating slide way. Two ends of each composite insulator are respectively provided with fixed anchor heads. A composite insulator connecting hole is formed in the front end of each fixed anchor head; a long slideway fixing surface with an arc striking angle gap and a short slideway fixing surface with an arc striking angle gap which form a certain included angle with each other are respectively arranged on the two side edges; an air gap larger than or equal to 310 mm is formed between the ends of the long slide ways with thearc striking angle gaps and the ends of the short slide ways with the arc striking angle gaps, a longitudinal overlapping area of 80 +/-5 mm and a transverse span of 345 +/-5 mm are arranged between the ends of the two long slide ways with the arc striking angle gaps, and the creepage distance of the composite insulator is not smaller than 1600 mm. The fixed anchor head of the sectional insulatoradopts an aluminum alloy casting, and the sectional insulator is compact in structure, light in weight, high in strength and high in corrosion resistance.

    本发明公开了一种25kV电气化铁路接触网用分段绝缘器,包括两个复合绝缘子以及带引弧角隙长滑道、带引弧角隙短滑道、辅助绝缘滑道,所述复合绝缘子的两端分别设置有固定锚头,固定锚头的前端设置有复合绝缘子连接孔,两侧边分别设置有相互有一定夹角的带引弧角隙长滑道固定面和带引弧角隙短滑道固定面,带引弧角隙长滑道和带引弧角隙短滑道的端头之间具有≥310mm的空气间隙,两个带引弧角隙长滑道的端头之间具有80±5mm的纵向重叠区及345±5mm的横向跨距,复合绝缘子的爬电距离不小于1600mm。该分段绝缘器的固定锚头采用铝合金铸件,其结构紧凑、重量轻、强度高、耐腐蚀性强。


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    Titel :

    Sectional insulator for 25kV electrified railway contact network


    Weitere Titelangaben:

    一种25kV电气化铁路接触网用分段绝缘器


    Beteiligte:
    WANG XINGQUAN (Autor:in) / ZHANG XIAOFANG (Autor:in) / ZHAO YI (Autor:in) / TANG PENG (Autor:in) / LEI SHANGJUN (Autor:in)

    Erscheinungsdatum :

    2020-09-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60M Speiseleitungen oder Vorrichtungen am Gleis für elektrisch angetriebene Fahrzeuge , POWER SUPPLY LINES, OR DEVICES ALONG RAILS, FOR ELECTRICALLY-PROPELLED VEHICLES



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